{"title":"Proline X","description":"","products":[{"product_id":"proline-x-single-10-ported-system-loaded-with-prodigy-nb2","title":"Proline X | Single 10\"  Ported System | Loaded with Prodigy NB2","description":"\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/original.webp?v=1772883216\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/Noziy_Boy_Logo222.png?v=1776537719\" alt=\"\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/pro_line.png?v=1777077488\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\" class=\"spec-item\"\u003e\n\u003cspan class=\"spec-label\"\u003eEnclosure Type\u003c\/span\u003e \u003cspan class=\"spec-value\"\u003ePorted\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" class=\"spec-item\"\u003e\n\u003cspan class=\"spec-label\"\u003eExternal Dimensions\u003c\/span\u003e \u003cspan class=\"spec-value\"\u003e23.5\" W X 13\" T x 8.5\"\/13\" D\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" class=\"spec-item\"\u003e\n\u003cspan class=\"spec-label\"\u003eNet Volume\u003c\/span\u003e \u003cspan class=\"spec-value\"\u003e1.2cu ft\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" class=\"spec-item\"\u003e\n\u003cspan class=\"spec-label\"\u003eTuning Frequency\u003c\/span\u003e \u003cspan class=\"spec-value\"\u003e33\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" class=\"spec-item\"\u003e\n\u003cspan class=\"spec-label\"\u003eCutout Diameter\u003c\/span\u003e \u003cspan class=\"spec-value\"\u003e9.08\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" class=\"spec-item\"\u003e\n\u003cspan class=\"spec-label\"\u003eFront Panel Thickness\u003c\/span\u003e \u003cspan class=\"spec-value\"\u003e.75\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" class=\"spec-item\"\u003e\n\u003cspan class=\"spec-label\"\u003eMax Mounting Depth\u003c\/span\u003e \u003cspan class=\"spec-value\"\u003eDirect Fit\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-product__block main-product__block-custom_liquid\"\u003e\n\u003cdiv class=\"m-product-text\"\u003e\n\u003cdiv class=\"ai-cheat-block\"\u003e\n\u003cdiv class=\"ai-cheat-content\"\u003e\n\u003cul class=\"cheat-sheet-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e High-output daily builds \/ Trunk and SUV installs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Single 10\" Ported — Wedge Style\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e 1.20 ft³ Net\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning:\u003c\/strong\u003e 33Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSonic Character:\u003c\/strong\u003e Deep, High-Output, Musical\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-product__block main-product__block-ai_value_list\"\u003e\n\u003cdiv style=\"margin-bottom: 0px;\" class=\"ai-value-list-block m-product-info__block\"\u003e\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 5px;\" class=\"ai-list-container\"\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px;\" class=\"ai-list-item\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0;\"\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" loading=\"lazy\" width=\"30\" srcset=\"\/\/audiointensity.com\/cdn\/shop\/files\/united-states-of-america.png?v=1768578060\u0026amp;width=30 30w\" alt=\"USA Flag Rounded\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/united-states-of-america.png?v=1768578060\u0026amp;width=30\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; text-align: center;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e Proline X Enclosure — Built in Tennessee \u003c\/span\u003e \u003cspan style=\"font-size: 13px; opacity: 0.8; line-height: 1.2;\"\u003e CNC-cut Langboard Elite 3\/4\" MDF, V-groove + dado joinery, recessed ABS\/Carbon Fiber terminal cup. \u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px; text-align: center;\" class=\"ai-list-item\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0;\"\u003e\u003cimg loading=\"lazy\" width=\"30\" srcset=\"\/\/audiointensity.com\/cdn\/shop\/files\/icons8-speaker-medium-volume-100.png?v=1735880900\u0026amp;width=30 30w\" alt=\"\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/icons8-speaker-medium-volume-100.png?v=1735880900\u0026amp;width=30\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e Driver + Enclosure — Matched and Pre-Wired \u003c\/span\u003e \u003cspan style=\"font-size: 13px; opacity: 0.8; line-height: 1.2;\"\u003e Subwoofer pre-installed and wired to the correct impedance. Connect your amplifier and it's ready to run. \u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px;\" class=\"ai-list-item\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0; text-align: center;\"\u003e\u003cimg loading=\"lazy\" width=\"30\" srcset=\"\/\/audiointensity.com\/cdn\/shop\/files\/Shipping-icon.png?v=1773789236\u0026amp;width=30 30w\" alt=\"Shipping Icon\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/Shipping-icon.png?v=1773789236\u0026amp;width=30\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; text-align: center;\"\u003e\n\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e Shipping Included \u003c\/span\u003e \u003c\/span\u003e\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e Assembled to order in 2–5 business days \u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px;\"\u003e\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e \u003c\/span\u003edays. No freight charges at checkout. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"ai-whats-included__title\"\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch2 class=\"ai-whats-included__title\"\u003eWhat's Included\u003c\/h2\u003e\n\u003cdiv class=\"ai-whats-included__content\"\u003e\n\u003cdiv class=\"metafield-rich_text_field\"\u003e\n\u003cul\u003e\n\u003cli\u003eProline X ported wedge enclosure — single 10\" configuration\u003c\/li\u003e\n\u003cli\u003eProdigy Audio NB2-10D4 10\" subwoofer pre-installed\u003c\/li\u003e\n\u003cli\u003ePre-wired 12g OFC speaker wire to 2-ohm\u003c\/li\u003e\n\u003cli\u003eRecessed ABS\/Carbon Fiber Composite terminal cup — stainless hardware, copper ring terminals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(189, 5, 5);\"\u003e\u003cem\u003eAmplifier, power wire, and RCA cables not included\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eShipping is included in the price. No freight charges at checkout — what you see is what you pay.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAssembly \u0026amp; Lead Time\u003c\/strong\u003e\u003cbr\u003eProline X enclosures ship assembled to order. Components are CNC-cut and staged in inventory. Once your order is placed, allow 2–5 business days for final assembly, bonding, and finishing before it ships.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Ships\u003c\/strong\u003e\u003cbr\u003eSingle 8\", 10\", and most 12\" enclosures ship UPS Ground. Oversize enclosures, some loaded enclosures, and anything over 160 lbs ship LTL freight on a pallet. If your order ships freight, the carrier will contact you to schedule a delivery window — provide a valid phone number at checkout. Freight delivery is curbside; the driver is not responsible for moving the enclosure past the curb.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspect Before You Sign\u003c\/strong\u003e\u003cbr\u003eFor ground shipments, photograph any exterior box damage before opening. For freight, inspect the pallet while the driver is present. If you see damage, write \"DAMAGED\" on the Bill of Lading before signing. Do not sign a clean receipt for a visibly damaged freight shipment — it closes the damage claim.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReturns\u003c\/strong\u003e\u003cbr\u003eNon-defective returns are subject to a 20% restocking fee and return shipping at buyer's expense. Enclosures that have been drilled into or modified are not eligible for return.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlaska \u0026amp; Hawaii\u003c\/strong\u003e\u003cbr\u003eAdditional charges may apply for shipments outside the contiguous 48 states.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-template--21933654835289__product-details-tabs\"\u003e\n\u003cdiv class=\"m-page-width\"\u003e\n\u003cdiv class=\"m-section__wrapper\"\u003e\n\u003cdiv class=\"m-section__content m-tabs m-tabs--responsive m-scroll-trigger animate--fade-in-up\"\u003e\n\u003cdiv class=\"m-tabs__content m-product-collapsible\"\u003e\n\u003cdiv style=\"--content-max-height: 556px; opacity: 1;\" data-index=\"0\" data-block-type=\"description\" class=\"m-accordion--item m-tab-content--description m-tab-content open active\"\u003e\n\u003cdiv style=\"opacity: 1;\" class=\"m-accordion--item-content max-height-set\"\u003e\n\u003cdiv class=\"m-tab-content__inner\"\u003e\n\u003cdiv class=\"rte\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe Proline X Single 10\" Ported System pairs the \u003cstrong\u003eProdigy Audio NB2-10D4 10\" subwoofer\u003c\/strong\u003e with a \u003cstrong\u003eProline X ported wedge enclosure\u003c\/strong\u003e built at our Tennessee facility. Net internal volume is \u003cstrong\u003e1.20 ft³\u003c\/strong\u003e, tuned to \u003cstrong\u003e33Hz\u003c\/strong\u003e via a slot port with 11 square inches of port area. The NB2-10D4 is a Dual 4-ohm driver and ships pre-wired to \u003cstrong\u003e2 ohms\u003c\/strong\u003e at the terminal cup — connect your amplifier and it's ready to run.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eEvery panel is CNC-cut from \u003cstrong\u003e3\/4\" Langboard Elite MDF\u003c\/strong\u003e at our Tennessee facility — a mill-certified panel stock with a \u003cstrong\u003e200 psi internal bond rating\u003c\/strong\u003e, \u003cstrong\u003e410,000 psi modulus of elasticity\u003c\/strong\u003e, and \u003cstrong\u003e325 lb face screw holding strength\u003c\/strong\u003e. In a ported enclosure, panel rigidity directly affects port output. Any flex in the cabinet walls bleeds energy away from the port and into the structure — the result is soft, undefined bass at volume. This box does not flex.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eVersion III construction uses \u003cstrong\u003eV-groove combined with dado joinery\u003c\/strong\u003e throughout. Each mating panel is channeled into a mechanical lock before adhesive is applied, increasing glue surface area and eliminating the micro-gaps that develop in standard butt joint construction over time. The terminal cup is \u003cstrong\u003ebuilt in-house at our Tennessee facility\u003c\/strong\u003e — ABS\/Carbon Fiber Composite body, recessed mount, stainless steel hardware, aluminum landing plates, copper ring terminals, and \u003cstrong\u003e12g OFC speaker wire pre-installed\u003c\/strong\u003e. Nothing to source. Nothing to upgrade. It ships ready to wire.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eShipping is included in the price.\u003c\/strong\u003e The wedge profile keeps external dimensions compact — 23.5\" wide and 8.5\" to 13\" deep — but this is still a loaded enclosure moving as a packaged freight shipment. That cost is built into what you see. No freight line item on your order confirmation. What you see is what you pay.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection class=\"shopify-section section\" id=\"shopify-section-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"section-template--21933654835289__proline_features_BV9HTU-padding\"\u003e\n\u003cdiv class=\"proline-features-container-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-features-header-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-features-header-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch2 class=\"proline-features-title-template--21933654835289__proline_features_BV9HTU\"\u003eWhy Proline X?\u003c\/h2\u003e\n\u003cp class=\"proline-features-desc-template--21933654835289__proline_features_BV9HTU\"\u003eMost enclosures are built to a price point. Proline X is built to a spec. Every box starts with published-data MDF, gets CNC-cut to exact internal volume, and is assembled by hand in our Tennessee facility. The difference shows up in the measurements — and in how the box holds up two years into daily use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"proline-features-grid-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-feature-block-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-icon-wrapper-template--21933654835289__proline_features_BV9HTU\"\u003e\u003cimg alt=\"CNC-Cut to Spec\" height=\"50\" width=\"50\" loading=\"lazy\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/milling-machine.png?v=1768578153\u0026amp;width=200\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-text-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch3 class=\"proline-feature-heading-template--21933654835289__proline_features_BV9HTU\"\u003eCNC-Cut to Spec\u003c\/h3\u003e\n\u003cp class=\"proline-feature-body-template--21933654835289__proline_features_BV9HTU\"\u003ePanels are machine-cut on ShopSabre CNC routers and joined with V-groove and dado joinery. Consistent geometry, no hand-cut variance, no gaps at the joints.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-block-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-icon-wrapper-template--21933654835289__proline_features_BV9HTU\"\u003e\u003cimg alt=\"Handcrafted in USA\" height=\"50\" width=\"50\" loading=\"lazy\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/united-states-of-america.png?v=1768578060\u0026amp;width=200\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-text-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch3 class=\"proline-feature-heading-template--21933654835289__proline_features_BV9HTU\"\u003eHandcrafted in USA\u003c\/h3\u003e\n\u003cp class=\"proline-feature-body-template--21933654835289__proline_features_BV9HTU\"\u003eHand-assembled at our facility in Tullahoma, TN. Every enclosure is inspected before it ships.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-block-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-icon-wrapper-template--21933654835289__proline_features_BV9HTU\"\u003e\u003cimg alt=\"Tuned to the Build\" height=\"50\" width=\"50\" loading=\"lazy\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/maintenance.png?v=1768578255\u0026amp;width=200\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-text-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch3 class=\"proline-feature-heading-template--21933654835289__proline_features_BV9HTU\"\u003eTuned to the Build\u003c\/h3\u003e\n\u003cp class=\"proline-feature-body-template--21933654835289__proline_features_BV9HTU\"\u003eInternal volume and port geometry are calculated to spec and CNC-cut to exact dimensions. The box performs the same way every time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003ePorted — Wedge Style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eSingle 10\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Volume\u003c\/td\u003e\n\u003ctd\u003e1.20 ft³\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort Type\u003c\/td\u003e\n\u003ctd\u003eSlot port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort Area\u003c\/td\u003e\n\u003ctd\u003e11 sq in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTuning Frequency\u003c\/td\u003e\n\u003ctd\u003e33 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Dimensions\u003c\/td\u003e\n\u003ctd\u003e23.5\" W × 13\" H × 8.5\"\/13\" D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCutout Diameter\u003c\/td\u003e\n\u003ctd\u003e9.08\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Mounting Depth\u003c\/td\u003e\n\u003ctd\u003e7.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMDF\u003c\/td\u003e\n\u003ctd\u003eLangboard Elite 3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJoinery\u003c\/td\u003e\n\u003ctd\u003eV-groove + dado\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Cup\u003c\/td\u003e\n\u003ctd\u003eRecessed ABS\/Carbon Fiber Composite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeaker Wire\u003c\/td\u003e\n\u003ctd\u003e12g OFC pre-installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eDark Gray Trunkliner \/ Plush Black (+$10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle Fitment\u003c\/td\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"ai-woofer-intro\"\u003eThe Prodigy Audio NB2-10D4 is a high-excursion daily driver built around a double-stacked magnet structure and a 2.0\" 4-layer copper voice coil on a black aluminum former. With 14mm of one-way linear Xmax at 70% BL and an Fs of 34.3Hz, the NB2 is engineered specifically for ported applications where low-end extension and sustained output at real power levels matter. A center pole vent combined with radial backplate holes moves thermal energy out of the coil gap during extended high-output listening — the driver stays in control where cheaper motors compress and lose output. At 400W RMS, this is a serious daily driver at a price point that leaves room in the budget for a quality amplifier.\u003c\/div\u003e\n\u003cdiv class=\"ai-specs-static-container\"\u003e\n\u003cdiv class=\"ai-specs-content\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand + Model\u003c\/td\u003e\n\u003ctd\u003eProdigy Audio NB2-10D4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e10\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power\u003c\/td\u003e\n\u003ctd\u003e400W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Power\u003c\/td\u003e\n\u003ctd\u003e800W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Coil\u003c\/td\u003e\n\u003ctd\u003eDual 4-ohm (wired to 2-ohm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Coil Size\u003c\/td\u003e\n\u003ctd\u003e2.0\" 4-layer copper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXmax\u003c\/td\u003e\n\u003ctd\u003e14mm one-way @ 70% BL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFs\u003c\/td\u003e\n\u003ctd\u003e34.3 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQts\u003c\/td\u003e\n\u003ctd\u003e0.514\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVas\u003c\/td\u003e\n\u003ctd\u003e21.05 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e84.2 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Depth\u003c\/td\u003e\n\u003ctd\u003e5.625\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCutout Diameter\u003c\/td\u003e\n\u003ctd\u003e9.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eProdigy NB2-10D4 in a Proline X 33Hz Ported Enclosure\u003c\/h3\u003e\n\u003cp\u003eThe NB2's published T\/S parameters tell a clear story — Fs of 34.3Hz, Qts of 0.514, and an EBP of 56 place this driver in the range where a ported enclosure produces meaningfully better output than sealed without sacrificing control. Prodigy's own recommended ported spec is 1.0 ft³ tuned to 33Hz. This enclosure delivers exactly that — \u003cstrong\u003e1.20 ft³ net at 33Hz\u003c\/strong\u003e — which accounts for driver displacement and keeps the NB2 operating within its designed loading parameters. The 14mm Xmax gives the driver the mechanical travel to stay linear at this tuning frequency without bottoming out under sustained power.\u003c\/p\u003e\n\u003cp\u003eThe result is high output with genuine low-end extension — the 33Hz tuning captures bass content that most 10\" systems in sealed boxes roll off entirely. The wedge profile keeps the external footprint compact enough for most sedan trunks and SUV cargo areas while the 7.5\" max mounting depth accommodates the NB2's 5.625\" mounting depth with clearance to spare.\u003c\/p\u003e\n\u003cp\u003eFor amplifier power, target \u003cstrong\u003e350–500W RMS at 2 ohms\u003c\/strong\u003e. The NB2 is rated at 400W RMS — staying in that range gives the driver enough headroom to perform without pushing into mechanical limits. A 500W Class D monoblock rated stable at 2 ohms is the ideal match for this system.\u003c\/p\u003e\n\u003cdiv class=\"ai-mat-intro\"\u003e\n\u003cspan class=\"ai-card-label\"\u003e\u003c\/span\u003e\n\u003ch3\u003eBuilt From a Spec Sheet, Not a Sales Sheet\u003c\/h3\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eEvery Proline X Performance Series enclosure is CNC-cut from \u003cstrong\u003eLangboard Elite MDF — 3\/4\" (18mm) panels\u003c\/strong\u003e produced to published mill specifications. Most enclosure manufacturers source generic MDF without published data. We can tell you the internal bond rating, the modulus of elasticity, the modulus of rupture, and the face and edge screw holding strength for every panel in this enclosure — because we chose the material based on those numbers, not on price or availability.\u003c\/p\u003e\n\u003cp\u003eLangboard Elite is produced in the United States. The specifications below are pulled directly from Langboard's published mill data and are verifiable. This is the same panel stock used in our full Proline X lineup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-table-wrap\" style=\"text-align: left;\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eSpecifications\u003c\/span\u003e\n\u003ch3 style=\"text-align: left;\"\u003eLangboard Elite MDF — Published Mill Data\u003c\/h3\u003e\n\u003cdiv class=\"ai-card-divider\" style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ctable class=\"ai-mat-table\" style=\"margin-left: 0px; margin-right: auto;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003cth\u003eWhy It Matters\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003ePanel Stock\u003c\/td\u003e\n\u003ctd\u003eLangboard Elite MDF\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eNamed, verifiable panel source — not generic \"high-density MDF\"\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e3\/4\" (18mm)\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eIndustry standard for subwoofer enclosures; panels below this flex under pressure\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eDensity\u003c\/td\u003e\n\u003ctd\u003e48.5 lbs\/ft³\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eHigher density = less porosity, better screw retention, reduced resonance\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eInternal Bond\u003c\/td\u003e\n\u003ctd\u003e200 psi\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eMeasures resistance to delamination under sustained internal pressure — the most enclosure-relevant spec on this sheet\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eModulus of Rupture (MOR)\u003c\/td\u003e\n\u003ctd\u003e4,200 psi\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eBending strength before the panel breaks — relevant for larger unsupported baffle spans\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eModulus of Elasticity (MOE)\u003c\/td\u003e\n\u003ctd\u003e410,000 psi\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eStiffness under load; higher MOE means less panel flex under bass pressure, less resonance\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eFace Screw Holding\u003c\/td\u003e\n\u003ctd\u003e325 lbs\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eHow firmly the panel surface holds a screw; critical for baffle joint integrity over time\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eEdge Screw Holding\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\"\u003e250 lbs\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\"\u003e\n\u003cp\u003ePanel edge retention — relevant for every joint that isn't face-to-face\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"ai-mat-footer-note\"\u003e \u003c\/p\u003e\n\u003cp class=\"ai-mat-footer-note\"\u003eSpecifications are published mill data from Langboard. All values are for 3\/4\" (18mm) panels at standard conditions. Actual performance is subject to manufacturing tolerances.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why\"\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eInternal Bond\u003c\/span\u003e\n\u003ch4\u003e200 psi — The Number That Actually Matters for Enclosures\u003c\/h4\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eThe internal bond rating measures how well the MDF panel resists delamination under sustained pressure applied perpendicular to the face. In a subwoofer enclosure, every bass transient generates a pressure pulse that pushes outward on every panel simultaneously. A panel that begins to delaminate internally loses stiffness gradually — the symptoms are slow: a box that starts to sound softer, less defined, less punchy over months of use. \u003cstrong\u003e200 psi internal bond\u003c\/strong\u003e is the spec that determines how long this enclosure holds its acoustic integrity under daily use at real power levels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eStiffness\u003c\/span\u003e\n\u003ch4\u003e410,000 psi MOE — Less Flex, Less Resonance\u003c\/h4\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eThe modulus of elasticity measures panel stiffness — resistance to bending under load. A stiffer panel flexes less under the pressure generated by a high-excursion driver at volume. Panel flex is a source of acoustic coloration: the panel itself begins to radiate sound at its own resonant frequency, adding distortion to the output. \u003cstrong\u003e410,000 psi stiffness\u003c\/strong\u003e combined with V-groove and dado joinery means the panels stay rigid and the bracing controls resonance at the structure level — not the panel level. The bass you hear comes from the driver, not the box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eScrew Holding\u003c\/span\u003e\n\u003ch4\u003e325 lb Face \/ 250 lb Edge — Joints That Stay Locked\u003c\/h4\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eScrew holding strength determines how firmly the panel grips a fastener at the face and at the edge. This matters most at the baffle joint — where the front panel meets the side panels and where the driver is mounted. A panel with low screw holding strength allows fasteners to loosen over time under vibration, leading to air gaps at the joint and loss of acoustic seal. \u003cstrong\u003e325 lb face screw holding strength\u003c\/strong\u003e means the baffle hardware stays put. Combined with dado joinery and adhesive, the front panel on a Proline X Performance Series enclosure is not going anywhere.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eSourcing\u003c\/span\u003e\n\u003ch4\u003eNamed Panel Stock — Not \"Premium MDF\"\u003c\/h4\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eThe phrase \"premium MDF\" or \"high-density MDF\" appears on marketing copy for enclosures across every price point, from $40 to $400. It is not a specification — it is a description with no defined standard. \u003cstrong\u003eLangboard Elite\u003c\/strong\u003e is a named, sourced, mill-documented product with published data. We name it in our copy because naming it holds us accountable to the spec. You can look up Langboard Elite independently, verify the numbers on this page, and confirm you are getting what we say you are getting. That is the point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Prodigy Audio","offers":[{"title":"Default Title","offer_id":63463045890417,"sku":null,"price":339.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/performance-optimized-wedge-style-ported-10-inch-subwoofer-enclosure-prodigy-nb2-10subwoofer-enclosuresproline-x-5250043.webp?v=1776531867"},{"product_id":"proline-x-single-12-ported-system-loaded-with-prodigy-nb2","title":"Proline X | Single 12\"  Ported System | Loaded with Prodigy NB2","description":"\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/original.webp?v=1772883216\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/Noziy_Boy_Logo222.png?v=1776537719\" alt=\"\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/pro_line.png?v=1777077488\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"main-product__block main-product__block-custom_liquid\"\u003e\n\u003cdiv class=\"m-product-text\"\u003e\n\u003cdiv class=\"ai-cheat-block\"\u003e\n\u003cdiv class=\"ai-cheat-content\"\u003e\n\u003cul class=\"cheat-sheet-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e High-output daily builds \/ Trunk and SUV installs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Single 12\" Ported — Wedge Style\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning:\u003c\/strong\u003e \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSonic Character:\u003c\/strong\u003e Deep, High-Output, Musical\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-product__block main-product__block-ai_value_list\"\u003e\n\u003cdiv style=\"margin-bottom: 0px;\" class=\"ai-value-list-block m-product-info__block\"\u003e\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 5px;\" class=\"ai-list-container\"\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px;\" class=\"ai-list-item\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0;\"\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" loading=\"lazy\" width=\"30\" srcset=\"\/\/audiointensity.com\/cdn\/shop\/files\/united-states-of-america.png?v=1768578060\u0026amp;width=30 30w\" alt=\"USA Flag Rounded\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/united-states-of-america.png?v=1768578060\u0026amp;width=30\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; text-align: center;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e Proline X Enclosure — Built in Tennessee \u003c\/span\u003e \u003cspan style=\"font-size: 13px; opacity: 0.8; line-height: 1.2;\"\u003e CNC-cut Langboard Elite 3\/4\" MDF, V-groove + dado joinery, recessed ABS\/Carbon Fiber terminal cup. \u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px; text-align: center;\" class=\"ai-list-item\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0;\"\u003e\u003cimg loading=\"lazy\" width=\"30\" srcset=\"\/\/audiointensity.com\/cdn\/shop\/files\/icons8-speaker-medium-volume-100.png?v=1735880900\u0026amp;width=30 30w\" alt=\"\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/icons8-speaker-medium-volume-100.png?v=1735880900\u0026amp;width=30\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e Driver + Enclosure — Matched and Pre-Wired \u003c\/span\u003e \u003cspan style=\"font-size: 13px; opacity: 0.8; line-height: 1.2;\"\u003e Subwoofer pre-installed and wired to the correct impedance. Connect your amplifier and it's ready to run. \u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px;\" class=\"ai-list-item\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0; text-align: center;\"\u003e\u003cimg loading=\"lazy\" width=\"30\" srcset=\"\/\/audiointensity.com\/cdn\/shop\/files\/Shipping-icon.png?v=1773789236\u0026amp;width=30 30w\" alt=\"Shipping Icon\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/Shipping-icon.png?v=1773789236\u0026amp;width=30\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; text-align: center;\"\u003e\n\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e Shipping Included \u003c\/span\u003e \u003c\/span\u003e\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e Assembled to order in 2–5 business days \u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px;\"\u003e\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e \u003c\/span\u003edays. No freight charges at checkout. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"ai-whats-included__title\"\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch2 class=\"ai-whats-included__title\"\u003eWhat's Included\u003c\/h2\u003e\n\u003cdiv class=\"ai-whats-included__content\"\u003e\n\u003cdiv class=\"metafield-rich_text_field\"\u003e\n\u003cul\u003e\n\u003cli\u003eProline X ported wedge enclosure — single 12\" configuration\u003c\/li\u003e\n\u003cli\u003eProdigy Audio NB2 12\" subwoofer pre-installed\u003c\/li\u003e\n\u003cli\u003ePre-wired 12g OFC speaker wire \u003c\/li\u003e\n\u003cli\u003eRecessed ABS\/Carbon Fiber Composite terminal cup — stainless hardware, copper ring terminals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(189, 5, 5);\"\u003e\u003cem\u003eAmplifier, power wire, and RCA cables not included\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eShipping is included in the price. No freight charges at checkout — what you see is what you pay.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAssembly \u0026amp; Lead Time\u003c\/strong\u003e\u003cbr\u003eProline X enclosures ship assembled to order. Components are CNC-cut and staged in inventory. Once your order is placed, allow 2–5 business days for final assembly, bonding, and finishing before it ships.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Ships\u003c\/strong\u003e\u003cbr\u003eSingle 8\", 10\", and most 12\" enclosures ship UPS Ground. Oversize enclosures, some loaded enclosures, and anything over 160 lbs ship LTL freight on a pallet. If your order ships freight, the carrier will contact you to schedule a delivery window — provide a valid phone number at checkout. Freight delivery is curbside; the driver is not responsible for moving the enclosure past the curb.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspect Before You Sign\u003c\/strong\u003e\u003cbr\u003eFor ground shipments, photograph any exterior box damage before opening. For freight, inspect the pallet while the driver is present. If you see damage, write \"DAMAGED\" on the Bill of Lading before signing. Do not sign a clean receipt for a visibly damaged freight shipment — it closes the damage claim.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReturns\u003c\/strong\u003e\u003cbr\u003eNon-defective returns are subject to a 20% restocking fee and return shipping at buyer's expense. Enclosures that have been drilled into or modified are not eligible for return.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlaska \u0026amp; Hawaii\u003c\/strong\u003e\u003cbr\u003eAdditional charges may apply for shipments outside the contiguous 48 states.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-template--21933654835289__product-details-tabs\"\u003e\n\u003cdiv class=\"m-page-width\"\u003e\n\u003cdiv class=\"m-section__wrapper\"\u003e\n\u003cdiv class=\"m-section__content m-tabs m-tabs--responsive m-scroll-trigger animate--fade-in-up\"\u003e\n\u003cdiv class=\"m-tabs__content m-product-collapsible\"\u003e\n\u003cdiv style=\"--content-max-height: 556px; opacity: 1;\" data-index=\"0\" data-block-type=\"description\" class=\"m-accordion--item m-tab-content--description m-tab-content open active\"\u003e\n\u003cdiv style=\"opacity: 1;\" class=\"m-accordion--item-content max-height-set\"\u003e\n\u003cdiv class=\"m-tab-content__inner\"\u003e\n\u003cdiv class=\"rte\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe Proline X Single 12\" Ported System pairs the \u003cstrong\u003eProdigy Audio NB2-12 12\" subwoofer\u003c\/strong\u003e with a \u003cstrong\u003eProline X ported wedge enclosure\u003c\/strong\u003e built at our Tennessee facility.  connect your amplifier and it's ready to run.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eEvery panel is CNC-cut from \u003cstrong\u003e3\/4\" Langboard Elite MDF\u003c\/strong\u003e at our Tennessee facility — a mill-certified panel stock with a \u003cstrong\u003e200 psi internal bond rating\u003c\/strong\u003e, \u003cstrong\u003e410,000 psi modulus of elasticity\u003c\/strong\u003e, and \u003cstrong\u003e325 lb face screw holding strength\u003c\/strong\u003e. In a ported enclosure, panel rigidity directly affects port output. Any flex in the cabinet walls bleeds energy away from the port and into the structure — the result is soft, undefined bass at volume. This box does not flex.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eVersion III construction uses \u003cstrong\u003eV-groove combined with dado joinery\u003c\/strong\u003e throughout. Each mating panel is channeled into a mechanical lock before adhesive is applied, increasing glue surface area and eliminating the micro-gaps that develop in standard butt joint construction over time. The terminal cup is \u003cstrong\u003ebuilt in-house at our Tennessee facility\u003c\/strong\u003e — ABS\/Carbon Fiber Composite body, recessed mount, stainless steel hardware, aluminum landing plates, copper ring terminals, and \u003cstrong\u003e12g OFC speaker wire pre-installed\u003c\/strong\u003e. Nothing to source. Nothing to upgrade. It ships ready to wire.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eShipping is included in the price.\u003c\/strong\u003e The wedge profile keeps external dimensions compact — 23.5\" wide and 8.5\" to 13\" deep — but this is still a loaded enclosure moving as a packaged freight shipment. That cost is built into what you see. No freight line item on your order confirmation. What you see is what you pay.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection class=\"shopify-section section\" id=\"shopify-section-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"section-template--21933654835289__proline_features_BV9HTU-padding\"\u003e\n\u003cdiv class=\"proline-features-container-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-features-header-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-features-header-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch2 class=\"proline-features-title-template--21933654835289__proline_features_BV9HTU\"\u003eWhy Proline X?\u003c\/h2\u003e\n\u003cp class=\"proline-features-desc-template--21933654835289__proline_features_BV9HTU\"\u003eMost enclosures are built to a price point. Proline X is built to a spec. Every box starts with published-data MDF, gets CNC-cut to exact internal volume, and is assembled by hand in our Tennessee facility. The difference shows up in the measurements — and in how the box holds up two years into daily use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"proline-features-grid-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-feature-block-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-icon-wrapper-template--21933654835289__proline_features_BV9HTU\"\u003e\u003cimg alt=\"CNC-Cut to Spec\" height=\"50\" width=\"50\" loading=\"lazy\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/milling-machine.png?v=1768578153\u0026amp;width=200\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-text-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch3 class=\"proline-feature-heading-template--21933654835289__proline_features_BV9HTU\"\u003eCNC-Cut to Spec\u003c\/h3\u003e\n\u003cp class=\"proline-feature-body-template--21933654835289__proline_features_BV9HTU\"\u003ePanels are machine-cut on ShopSabre CNC routers and joined with V-groove and dado joinery. Consistent geometry, no hand-cut variance, no gaps at the joints.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-block-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-icon-wrapper-template--21933654835289__proline_features_BV9HTU\"\u003e\u003cimg alt=\"Handcrafted in USA\" height=\"50\" width=\"50\" loading=\"lazy\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/united-states-of-america.png?v=1768578060\u0026amp;width=200\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-text-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch3 class=\"proline-feature-heading-template--21933654835289__proline_features_BV9HTU\"\u003eHandcrafted in USA\u003c\/h3\u003e\n\u003cp class=\"proline-feature-body-template--21933654835289__proline_features_BV9HTU\"\u003eHand-assembled at our facility in Tullahoma, TN. Every enclosure is inspected before it ships.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-block-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-icon-wrapper-template--21933654835289__proline_features_BV9HTU\"\u003e\u003cimg alt=\"Tuned to the Build\" height=\"50\" width=\"50\" loading=\"lazy\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/maintenance.png?v=1768578255\u0026amp;width=200\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-text-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch3 class=\"proline-feature-heading-template--21933654835289__proline_features_BV9HTU\"\u003eTuned to the Build\u003c\/h3\u003e\n\u003cp class=\"proline-feature-body-template--21933654835289__proline_features_BV9HTU\"\u003eInternal volume and port geometry are calculated to spec and CNC-cut to exact dimensions. The box performs the same way every time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003ePorted — Wedge Style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eSingle 12\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Volume\u003c\/td\u003e\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort Type\u003c\/td\u003e\n\u003ctd\u003eSlot port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort Area\u003c\/td\u003e\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTuning Frequency\u003c\/td\u003e\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Dimensions\u003c\/td\u003e\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCutout Diameter\u003c\/td\u003e\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Mounting Depth\u003c\/td\u003e\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMDF\u003c\/td\u003e\n\u003ctd\u003eLangboard Elite 3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJoinery\u003c\/td\u003e\n\u003ctd\u003eV-groove + dado\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Cup\u003c\/td\u003e\n\u003ctd\u003eRecessed ABS\/Carbon Fiber Composite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeaker Wire\u003c\/td\u003e\n\u003ctd\u003e12g OFC pre-installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eDark Gray Trunkliner \/ Plush Black (+$10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle Fitment\u003c\/td\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cp\u003eThe NB2 Series of subs are class leading first level subwoofers, with many features normally found only in higher end products. Starting with a double stacked magnet structure paired with a very long voice coil, the NB2 has an advantage. Reaching up to14mm of linear Xmax One Way and 2” of mechanical movement clearance peak to peak, it assures a durable subwoofer. Excellent Cooling is achieved by offering a center pole Vent as well as Radial back plate holes for moving BTU’s out of the coil gap. To increase the power handling, we chose to use 500f degree coil adhesive and glue joints throughout the subwoofer. We chose a durable foam surround with a strong paper cone to move the sound pressures reliably. A rubber gasket, chrome push terminals, quality Cotton blend spider with stitched tinsel leads all round out the quality choices toward offering one of the very best first level subwoofers on the market.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRMS Power 400 Watts on 12\"\u003c\/li\u003e\n\u003cli\u003e8”, 10” and 12” Sizes\u003c\/li\u003e\n\u003cli\u003eXmax of up to 14mm one way at 70% BL\u003c\/li\u003e\n\u003cli\u003eHigh temperature 4 Layer copper voice coil\u003c\/li\u003e\n\u003cli\u003eBlack aluminum 2” voice coil former\u003c\/li\u003e\n\u003cli\u003eDual 4 ohm coil\u003c\/li\u003e\n\u003cli\u003eRear radial coil gap cooling holes\u003c\/li\u003e\n\u003cli\u003eCenter pole vent optimized for moving BTU’s\u003c\/li\u003e\n\u003cli\u003eStrong stamped steel frame with logo\u003c\/li\u003e\n\u003cli\u003eQuality chrome push terminals\u003c\/li\u003e\n\u003cli\u003eFlat stitched tinsel leads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\n\u003ctable border=\"0\" width=\"300\" cellspacing=\"10\" cellpadding=\"10\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"25%\"\u003e \u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" width=\"59\"\u003eNB2-12d4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRE\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e6.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFS\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e28.37\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVAS\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e55.392\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQes\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e0.522\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQms\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e3.662\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQts\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e0.457\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBL\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e21.268\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMms (g)\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e216.268\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCms\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e142.835\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSens\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e85.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXmax\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003eCut Outs \u0026amp; Sizes\u003c\/h3\u003e\n\u003ctable border=\"0\" cellspacing=\"0\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"91\"\u003e \u003ccol width=\"83\"\u003e \u003ccol width=\"64\"\u003e \u003ccol width=\"65\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" width=\"91\" height=\"19\"\u003eModel\u003c\/td\u003e\n\u003ctd align=\"CENTER\" valign=\"BOTTOM\" width=\"65\"\u003eNB2-12d4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" height=\"19\"\u003eDepth\u003c\/td\u003e\n\u003ctd align=\"CENTER\" valign=\"BOTTOM\"\u003e6 3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" height=\"19\"\u003eCutout\u003c\/td\u003e\n\u003ctd align=\"CENTER\" valign=\"BOTTOM\"\u003e11 1\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" height=\"19\"\u003eOverall Dia.\u003c\/td\u003e\n\u003ctd align=\"CENTER\" valign=\"BOTTOM\"\u003e12 1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" height=\"19\"\u003eDisplacement\u003c\/td\u003e\n\u003ctd align=\"CENTER\" valign=\"BOTTOM\"\u003e0.13 ft3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"ai-mat-intro\"\u003e\n\u003cspan class=\"ai-card-label\"\u003e\u003c\/span\u003e\n\u003ch3\u003eBuilt From a Spec Sheet, Not a Sales Sheet\u003c\/h3\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eEvery Proline X Performance Series enclosure is CNC-cut from \u003cstrong\u003eLangboard Elite MDF — 3\/4\" (18mm) panels\u003c\/strong\u003e produced to published mill specifications. Most enclosure manufacturers source generic MDF without published data. We can tell you the internal bond rating, the modulus of elasticity, the modulus of rupture, and the face and edge screw holding strength for every panel in this enclosure — because we chose the material based on those numbers, not on price or availability.\u003c\/p\u003e\n\u003cp\u003eLangboard Elite is produced in the United States. The specifications below are pulled directly from Langboard's published mill data and are verifiable. This is the same panel stock used in our full Proline X lineup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-table-wrap\" style=\"text-align: left;\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eSpecifications\u003c\/span\u003e\n\u003ch3 style=\"text-align: left;\"\u003eLangboard Elite MDF — Published Mill Data\u003c\/h3\u003e\n\u003cdiv class=\"ai-card-divider\" style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ctable class=\"ai-mat-table\" style=\"margin-left: 0px; margin-right: auto;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003cth\u003eWhy It Matters\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003ePanel Stock\u003c\/td\u003e\n\u003ctd\u003eLangboard Elite MDF\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eNamed, verifiable panel source — not generic \"high-density MDF\"\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e3\/4\" (18mm)\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eIndustry standard for subwoofer enclosures; panels below this flex under pressure\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eDensity\u003c\/td\u003e\n\u003ctd\u003e48.5 lbs\/ft³\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eHigher density = less porosity, better screw retention, reduced resonance\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eInternal Bond\u003c\/td\u003e\n\u003ctd\u003e200 psi\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eMeasures resistance to delamination under sustained internal pressure — the most enclosure-relevant spec on this sheet\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eModulus of Rupture (MOR)\u003c\/td\u003e\n\u003ctd\u003e4,200 psi\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eBending strength before the panel breaks — relevant for larger unsupported baffle spans\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eModulus of Elasticity (MOE)\u003c\/td\u003e\n\u003ctd\u003e410,000 psi\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eStiffness under load; higher MOE means less panel flex under bass pressure, less resonance\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eFace Screw Holding\u003c\/td\u003e\n\u003ctd\u003e325 lbs\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eHow firmly the panel surface holds a screw; critical for baffle joint integrity over time\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eEdge Screw Holding\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\"\u003e250 lbs\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\"\u003e\n\u003cp\u003ePanel edge retention — relevant for every joint that isn't face-to-face\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"ai-mat-footer-note\"\u003e \u003c\/p\u003e\n\u003cp class=\"ai-mat-footer-note\"\u003eSpecifications are published mill data from Langboard. All values are for 3\/4\" (18mm) panels at standard conditions. Actual performance is subject to manufacturing tolerances.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why\"\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eInternal Bond\u003c\/span\u003e\n\u003ch4\u003e200 psi — The Number That Actually Matters for Enclosures\u003c\/h4\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eThe internal bond rating measures how well the MDF panel resists delamination under sustained pressure applied perpendicular to the face. In a subwoofer enclosure, every bass transient generates a pressure pulse that pushes outward on every panel simultaneously. A panel that begins to delaminate internally loses stiffness gradually — the symptoms are slow: a box that starts to sound softer, less defined, less punchy over months of use. \u003cstrong\u003e200 psi internal bond\u003c\/strong\u003e is the spec that determines how long this enclosure holds its acoustic integrity under daily use at real power levels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eStiffness\u003c\/span\u003e\n\u003ch4\u003e410,000 psi MOE — Less Flex, Less Resonance\u003c\/h4\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eThe modulus of elasticity measures panel stiffness — resistance to bending under load. A stiffer panel flexes less under the pressure generated by a high-excursion driver at volume. Panel flex is a source of acoustic coloration: the panel itself begins to radiate sound at its own resonant frequency, adding distortion to the output. \u003cstrong\u003e410,000 psi stiffness\u003c\/strong\u003e combined with V-groove and dado joinery means the panels stay rigid and the bracing controls resonance at the structure level — not the panel level. The bass you hear comes from the driver, not the box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eScrew Holding\u003c\/span\u003e\n\u003ch4\u003e325 lb Face \/ 250 lb Edge — Joints That Stay Locked\u003c\/h4\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eScrew holding strength determines how firmly the panel grips a fastener at the face and at the edge. This matters most at the baffle joint — where the front panel meets the side panels and where the driver is mounted. A panel with low screw holding strength allows fasteners to loosen over time under vibration, leading to air gaps at the joint and loss of acoustic seal. \u003cstrong\u003e325 lb face screw holding strength\u003c\/strong\u003e means the baffle hardware stays put. Combined with dado joinery and adhesive, the front panel on a Proline X Performance Series enclosure is not going anywhere.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eSourcing\u003c\/span\u003e\n\u003ch4\u003eNamed Panel Stock — Not \"Premium MDF\"\u003c\/h4\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eThe phrase \"premium MDF\" or \"high-density MDF\" appears on marketing copy for enclosures across every price point, from $40 to $400. It is not a specification — it is a description with no defined standard. \u003cstrong\u003eLangboard Elite\u003c\/strong\u003e is a named, sourced, mill-documented product with published data. We name it in our copy because naming it holds us accountable to the spec. You can look up Langboard Elite independently, verify the numbers on this page, and confirm you are getting what we say you are getting. That is the point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Prodigy Audio","offers":[{"title":"Default Title","offer_id":63463097565553,"sku":null,"price":359.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/performance-optimized-wedge-style-ported-10-inch-subwoofer-enclosure-prodigy-nb2-10subwoofer-enclosuresproline-x-5250043.webp?v=1776531867"},{"product_id":"proline-x-dual-12-sealed-system-loaded-with-prodigy-nb2","title":"Proline X | Dual 12\"  Wedge Sealed System | Loaded with Prodigy NB2","description":"\u003cdiv style=\"text-align: center;\" class=\"spec-item\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/original.webp?v=1772883216\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/Noziy_Boy_Logo222.png?v=1776537719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/pro_line.png?v=1777077488\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"main-product__block main-product__block-custom_liquid\"\u003e\n\u003cdiv class=\"m-product-text\"\u003e\n\u003cdiv class=\"ai-cheat-block\"\u003e\n\u003cdiv class=\"ai-cheat-content\"\u003e\n\u003cul class=\"cheat-sheet-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e High-output daily builds \/ Trunk and SUV installs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Dual 12\" Sealed — Wedge Style\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSonic Character:\u003c\/strong\u003e Deep, High-Output, Musical\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-product__block main-product__block-ai_value_list\"\u003e\n\u003cdiv style=\"margin-bottom: 0px;\" class=\"ai-value-list-block m-product-info__block\"\u003e\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 5px;\" class=\"ai-list-container\"\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px;\" class=\"ai-list-item\"\u003e\n\u003ch5 style=\"flex-shrink: 0; line-height: 0;\"\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px;\" class=\"ai-list-item\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0;\"\u003e\u003cimg style=\"float: left;\" loading=\"lazy\" width=\"30\" srcset=\"\/\/audiointensity.com\/cdn\/shop\/files\/united-states-of-america.png?v=1768578060\u0026amp;width=30 30w\" alt=\"USA Flag Rounded\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/united-states-of-america.png?v=1768578060\u0026amp;width=30\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; text-align: left;\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e Proline X Enclosure — Built in Tennessee \u003c\/span\u003e \u003cspan style=\"font-size: 13px; opacity: 0.8; line-height: 1.2;\"\u003e CNC-cut Langboard Elite 3\/4\" MDF, V-groove + dado joinery, recessed ABS\/Carbon Fiber terminal cup. \u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"font-size: 13px; opacity: 0.8; line-height: 1.2;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px; text-align: left;\" class=\"ai-list-item\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-product__block main-product__block-ai_value_list\"\u003e\n\u003cdiv style=\"margin-bottom: 0px;\" class=\"ai-value-list-block m-product-info__block\"\u003e\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 5px;\" class=\"ai-list-container\"\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px;\" class=\"ai-list-item\"\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px; text-align: left;\" class=\"ai-list-item\"\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px;\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch5 style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e\u003cimg height=\"67\" loading=\"lazy\" width=\"67\" srcset=\"\/\/audiointensity.com\/cdn\/shop\/files\/icons8-speaker-medium-volume-100.png?v=1735880900\u0026amp;width=30 30w\" alt=\"\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/icons8-speaker-medium-volume-100.png?v=1735880900\u0026amp;width=30\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px;\"\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003eDriver + Enclosure — Matched and Pre-Wired \u003c\/span\u003e \u003cspan style=\"font-size: 13px; opacity: 0.8; line-height: 1.2;\"\u003e Subwoofer pre-installed and wired to the correct impedance. Connect your amplifier and it's ready to run. \u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px;\" class=\"ai-list-item\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-product__block main-product__block-ai_value_list\"\u003e\n\u003cdiv style=\"margin-bottom: 0px;\" class=\"ai-value-list-block m-product-info__block\"\u003e\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 5px;\" class=\"ai-list-container\"\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px;\" class=\"ai-list-item\"\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px;\" class=\"ai-list-item\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0; text-align: left;\"\u003e    \u003cimg loading=\"lazy\" width=\"30\" srcset=\"\/\/audiointensity.com\/cdn\/shop\/files\/Shipping-icon.png?v=1773789236\u0026amp;width=30 30w\" alt=\"Shipping Icon\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/Shipping-icon.png?v=1773789236\u0026amp;width=30\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; text-align: left;\"\u003e\n\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e   Shipping Included\u003c\/span\u003e  \u003c\/span\u003e\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e    Assembled to order in 2–5 business days \u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 13px; opacity: 0.8; color: rgb(0, 0, 0); line-height: 1.2;\"\u003eNo freight charges at checkout. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"ai-whats-included__title\"\u003eWhat's Included\u003c\/h2\u003e\n\u003cdiv class=\"ai-whats-included__content\"\u003e\n\u003cdiv class=\"metafield-rich_text_field\"\u003e\n\u003cul\u003e\n\u003cli\u003eProline X Sealed wedge enclosure — Dual Sealed 12\" configuration\u003c\/li\u003e\n\u003cli\u003eProdigy Audio NB2 12\" subwoofers pre-installed\u003c\/li\u003e\n\u003cli\u003ePre-wired 12g OFC speaker wire \u003c\/li\u003e\n\u003cli\u003eRecessed ABS\/Carbon Fiber Composite terminal cup — stainless hardware, copper ring terminals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(189, 5, 5);\"\u003e\u003cem\u003eAmplifier, power wire, and RCA cables not included\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eShipping is included in the price. No freight charges at checkout — what you see is what you pay.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAssembly \u0026amp; Lead Time\u003c\/strong\u003e\u003cbr\u003eProline X enclosures ship assembled to order. Components are CNC-cut and staged in inventory. Once your order is placed, allow 2–5 business days for final assembly, bonding, and finishing before it ships.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Ships\u003c\/strong\u003e\u003cbr\u003eSingle 8\", 10\", and most 12\" enclosures ship UPS Ground. Oversize enclosures, some loaded enclosures, and anything over 160 lbs ship LTL freight on a pallet. If your order ships freight, the carrier will contact you to schedule a delivery window — provide a valid phone number at checkout. Freight delivery is curbside; the driver is not responsible for moving the enclosure past the curb.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspect Before You Sign\u003c\/strong\u003e\u003cbr\u003eFor ground shipments, photograph any exterior box damage before opening. For freight, inspect the pallet while the driver is present. If you see damage, write \"DAMAGED\" on the Bill of Lading before signing. Do not sign a clean receipt for a visibly damaged freight shipment — it closes the damage claim.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReturns\u003c\/strong\u003e\u003cbr\u003eNon-defective returns are subject to a 20% restocking fee and return shipping at buyer's expense. Enclosures that have been drilled into or modified are not eligible for return.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlaska \u0026amp; Hawaii\u003c\/strong\u003e\u003cbr\u003eAdditional charges may apply for shipments outside the contiguous 48 states.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-template--21933654835289__product-details-tabs\"\u003e\n\u003cdiv class=\"m-page-width\"\u003e\n\u003cdiv class=\"m-section__wrapper\"\u003e\n\u003cdiv class=\"m-section__content m-tabs m-tabs--responsive m-scroll-trigger animate--fade-in-up\"\u003e\n\u003cdiv class=\"m-tabs__content m-product-collapsible\"\u003e\n\u003cdiv style=\"--content-max-height: 556px; opacity: 1;\" data-index=\"0\" data-block-type=\"description\" class=\"m-accordion--item m-tab-content--description m-tab-content open active\"\u003e\n\u003cdiv style=\"opacity: 1;\" class=\"m-accordion--item-content max-height-set\"\u003e\n\u003cdiv class=\"m-tab-content__inner\"\u003e\n\u003cdiv class=\"rte\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe Proline X Dual 12\" Sealed System pairs the \u003cstrong\u003eProdigy Audio NB2-12 12\" subwoofer\u003c\/strong\u003e with a \u003cstrong\u003eProline X ported wedge enclosure\u003c\/strong\u003e built at our Tennessee facility.  connect your amplifier and it's ready to run.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eEvery panel is CNC-cut from \u003cstrong\u003e3\/4\" Langboard Elite MDF\u003c\/strong\u003e at our Tennessee facility — a mill-certified panel stock with a \u003cstrong\u003e200 psi internal bond rating\u003c\/strong\u003e, \u003cstrong\u003e410,000 psi modulus of elasticity\u003c\/strong\u003e, and \u003cstrong\u003e325 lb face screw holding strength\u003c\/strong\u003e. In a ported enclosure, panel rigidity directly affects port output. Any flex in the cabinet walls bleeds energy away from the port and into the structure — the result is soft, undefined bass at volume. This box does not flex.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eVersion III construction uses \u003cstrong\u003eV-groove combined with dado joinery\u003c\/strong\u003e throughout. Each mating panel is channeled into a mechanical lock before adhesive is applied, increasing glue surface area and eliminating the micro-gaps that develop in standard butt joint construction over time. The terminal cup is \u003cstrong\u003ebuilt in-house at our Tennessee facility\u003c\/strong\u003e — ABS\/Carbon Fiber Composite body, recessed mount, stainless steel hardware, aluminum landing plates, copper ring terminals, and \u003cstrong\u003e12g OFC speaker wire pre-installed\u003c\/strong\u003e. Nothing to source. Nothing to upgrade. It ships ready to wire.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eShipping is included in the price.\u003c\/strong\u003e The wedge profile keeps external dimensions compact — 23.5\" wide and 8.5\" to 13\" deep — but this is still a loaded enclosure moving as a packaged freight shipment. That cost is built into what you see. No freight line item on your order confirmation. What you see is what you pay.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection class=\"shopify-section section\" id=\"shopify-section-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"section-template--21933654835289__proline_features_BV9HTU-padding\"\u003e\n\u003cdiv class=\"proline-features-container-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-features-header-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-features-header-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch2 class=\"proline-features-title-template--21933654835289__proline_features_BV9HTU\"\u003eWhy Proline X?\u003c\/h2\u003e\n\u003cp class=\"proline-features-desc-template--21933654835289__proline_features_BV9HTU\"\u003eMost enclosures are built to a price point. Proline X is built to a spec. Every box starts with published-data MDF, gets CNC-cut to exact internal volume, and is assembled by hand in our Tennessee facility. The difference shows up in the measurements — and in how the box holds up two years into daily use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"proline-features-grid-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-feature-block-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-icon-wrapper-template--21933654835289__proline_features_BV9HTU\"\u003e\u003cimg alt=\"CNC-Cut to Spec\" height=\"50\" width=\"50\" loading=\"lazy\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/milling-machine.png?v=1768578153\u0026amp;width=200\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-text-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch3 class=\"proline-feature-heading-template--21933654835289__proline_features_BV9HTU\"\u003eCNC-Cut to Spec\u003c\/h3\u003e\n\u003cp class=\"proline-feature-body-template--21933654835289__proline_features_BV9HTU\"\u003ePanels are machine-cut on ShopSabre CNC routers and joined with V-groove and dado joinery. Consistent geometry, no hand-cut variance, no gaps at the joints.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-block-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-icon-wrapper-template--21933654835289__proline_features_BV9HTU\"\u003e\u003cimg alt=\"Handcrafted in USA\" height=\"50\" width=\"50\" loading=\"lazy\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/united-states-of-america.png?v=1768578060\u0026amp;width=200\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-text-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch3 class=\"proline-feature-heading-template--21933654835289__proline_features_BV9HTU\"\u003eHandcrafted in USA\u003c\/h3\u003e\n\u003cp class=\"proline-feature-body-template--21933654835289__proline_features_BV9HTU\"\u003eHand-assembled at our facility in Tullahoma, TN. Every enclosure is inspected before it ships.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-block-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-icon-wrapper-template--21933654835289__proline_features_BV9HTU\"\u003e\u003cimg alt=\"Tuned to the Build\" height=\"50\" width=\"50\" loading=\"lazy\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/maintenance.png?v=1768578255\u0026amp;width=200\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-text-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch3 class=\"proline-feature-heading-template--21933654835289__proline_features_BV9HTU\"\u003eTuned to the Build\u003c\/h3\u003e\n\u003cp class=\"proline-feature-body-template--21933654835289__proline_features_BV9HTU\"\u003eInternal volume and port geometry are calculated to spec and CNC-cut to exact dimensions. The box performs the same way every time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003ctable style=\"width: 100%; height: 294px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 32.4812%; height: 19.6px;\"\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd style=\"width: 64.7362%; height: 19.6px;\"\u003eSealed— Wedge Style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 32.4812%; height: 19.6px;\"\u003eConfiguration\u003c\/td\u003e\n\u003ctd style=\"width: 64.7362%; height: 19.6px;\"\u003eDual 12\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 32.4812%; height: 19.6px;\"\u003eNet Volume\u003c\/td\u003e\n\u003ctd style=\"width: 64.7362%; height: 19.6px;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 32.4812%; height: 19.6px;\"\u003ePort Type\u003c\/td\u003e\n\u003ctd style=\"width: 64.7362%; height: 19.6px;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 32.4812%; height: 19.6px;\"\u003ePort Area\u003c\/td\u003e\n\u003ctd style=\"width: 64.7362%; height: 19.6px;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 32.4812%; height: 19.6px;\"\u003eTuning Frequency\u003c\/td\u003e\n\u003ctd style=\"width: 64.7362%; height: 19.6px;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 32.4812%; height: 19.6px;\"\u003eExternal Dimensions\u003c\/td\u003e\n\u003ctd style=\"width: 64.7362%; height: 19.6px;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 32.4812%; height: 19.6px;\"\u003eCutout Diameter\u003c\/td\u003e\n\u003ctd style=\"width: 64.7362%; height: 19.6px;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 32.4812%; height: 19.6px;\"\u003eMax Mounting Depth\u003c\/td\u003e\n\u003ctd style=\"width: 64.7362%; height: 19.6px;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 32.4812%; height: 19.6px;\"\u003eMDF\u003c\/td\u003e\n\u003ctd style=\"width: 64.7362%; height: 19.6px;\"\u003eLangboard Elite 3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 32.4812%; height: 19.6px;\"\u003eJoinery\u003c\/td\u003e\n\u003ctd style=\"width: 64.7362%; height: 19.6px;\"\u003eV-groove + dado\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 32.4812%; height: 19.6px;\"\u003eTerminal Cup\u003c\/td\u003e\n\u003ctd style=\"width: 64.7362%; height: 19.6px;\"\u003eRecessed ABS\/Carbon Fiber Composite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 32.4812%; height: 19.6px;\"\u003eSpeaker Wire\u003c\/td\u003e\n\u003ctd style=\"width: 64.7362%; height: 19.6px;\"\u003e12g OFC pre-installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 32.4812%; height: 19.6px;\"\u003eFinish\u003c\/td\u003e\n\u003ctd style=\"width: 64.7362%; height: 19.6px;\"\u003eDark Gray Trunkliner \/ Plush Black (+$10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 32.4812%; height: 19.6px;\"\u003eVehicle Fitment\u003c\/td\u003e\n\u003ctd style=\"width: 64.7362%; height: 19.6px;\"\u003eUniversal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cp\u003eThe NB2 Series of subs are class leading first level subwoofers, with many features normally found only in higher end products. Starting with a double stacked magnet structure paired with a very long voice coil, the NB2 has an advantage. Reaching up to14mm of linear Xmax One Way and 2” of mechanical movement clearance peak to peak, it assures a durable subwoofer. Excellent Cooling is achieved by offering a center pole Vent as well as Radial back plate holes for moving BTU’s out of the coil gap. To increase the power handling, we chose to use 500f degree coil adhesive and glue joints throughout the subwoofer. We chose a durable foam surround with a strong paper cone to move the sound pressures reliably. A rubber gasket, chrome push terminals, quality Cotton blend spider with stitched tinsel leads all round out the quality choices toward offering one of the very best first level subwoofers on the market.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRMS Power 400 Watts on 12\"\u003c\/li\u003e\n\u003cli\u003e8”, 10” and 12” Sizes\u003c\/li\u003e\n\u003cli\u003eXmax of up to 14mm one way at 70% BL\u003c\/li\u003e\n\u003cli\u003eHigh temperature 4 Layer copper voice coil\u003c\/li\u003e\n\u003cli\u003eBlack aluminum 2” voice coil former\u003c\/li\u003e\n\u003cli\u003eDual 4 ohm coil\u003c\/li\u003e\n\u003cli\u003eRear radial coil gap cooling holes\u003c\/li\u003e\n\u003cli\u003eCenter pole vent optimized for moving BTU’s\u003c\/li\u003e\n\u003cli\u003eStrong stamped steel frame with logo\u003c\/li\u003e\n\u003cli\u003eQuality chrome push terminals\u003c\/li\u003e\n\u003cli\u003eFlat stitched tinsel leads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\n\u003ctable border=\"0\" width=\"300\" cellspacing=\"10\" cellpadding=\"10\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"25%\"\u003e \u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" width=\"59\"\u003eNB2-12d4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRE\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e6.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFS\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e28.37\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVAS\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e55.392\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQes\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e0.522\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQms\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e3.662\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQts\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e0.457\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBL\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e21.268\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMms (g)\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e216.268\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCms\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e142.835\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSens\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e85.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXmax\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003eCut Outs \u0026amp; Sizes\u003c\/h3\u003e\n\u003ctable border=\"0\" cellspacing=\"0\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"91\"\u003e \u003ccol width=\"83\"\u003e \u003ccol width=\"64\"\u003e \u003ccol width=\"65\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" width=\"91\" height=\"19\"\u003eModel\u003c\/td\u003e\n\u003ctd align=\"CENTER\" valign=\"BOTTOM\" width=\"65\"\u003eNB2-12d4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" height=\"19\"\u003eDepth\u003c\/td\u003e\n\u003ctd align=\"CENTER\" valign=\"BOTTOM\"\u003e6 3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" height=\"19\"\u003eCutout\u003c\/td\u003e\n\u003ctd align=\"CENTER\" valign=\"BOTTOM\"\u003e11 1\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" height=\"19\"\u003eOverall Dia.\u003c\/td\u003e\n\u003ctd align=\"CENTER\" valign=\"BOTTOM\"\u003e12 1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" height=\"19\"\u003eDisplacement\u003c\/td\u003e\n\u003ctd align=\"CENTER\" valign=\"BOTTOM\"\u003e0.13 ft3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"ai-mat-intro\"\u003e\n\u003cspan class=\"ai-card-label\"\u003e\u003c\/span\u003e\n\u003ch3\u003eBuilt From a Spec Sheet, Not a Sales Sheet\u003c\/h3\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eEvery Proline X Performance Series enclosure is CNC-cut from \u003cstrong\u003eLangboard Elite MDF — 3\/4\" (18mm) panels\u003c\/strong\u003e produced to published mill specifications. Most enclosure manufacturers source generic MDF without published data. We can tell you the internal bond rating, the modulus of elasticity, the modulus of rupture, and the face and edge screw holding strength for every panel in this enclosure — because we chose the material based on those numbers, not on price or availability.\u003c\/p\u003e\n\u003cp\u003eLangboard Elite is produced in the United States. The specifications below are pulled directly from Langboard's published mill data and are verifiable. This is the same panel stock used in our full Proline X lineup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-table-wrap\" style=\"text-align: left;\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eSpecifications\u003c\/span\u003e\n\u003ch3 style=\"text-align: left;\"\u003eLangboard Elite MDF — Published Mill Data\u003c\/h3\u003e\n\u003cdiv class=\"ai-card-divider\" style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ctable class=\"ai-mat-table\" style=\"margin-left: 0px; margin-right: auto;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003cth\u003eWhy It Matters\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003ePanel Stock\u003c\/td\u003e\n\u003ctd\u003eLangboard Elite MDF\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eNamed, verifiable panel source — not generic \"high-density MDF\"\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e3\/4\" (18mm)\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eIndustry standard for subwoofer enclosures; panels below this flex under pressure\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eDensity\u003c\/td\u003e\n\u003ctd\u003e48.5 lbs\/ft³\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eHigher density = less porosity, better screw retention, reduced resonance\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eInternal Bond\u003c\/td\u003e\n\u003ctd\u003e200 psi\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eMeasures resistance to delamination under sustained internal pressure — the most enclosure-relevant spec on this sheet\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eModulus of Rupture (MOR)\u003c\/td\u003e\n\u003ctd\u003e4,200 psi\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eBending strength before the panel breaks — relevant for larger unsupported baffle spans\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eModulus of Elasticity (MOE)\u003c\/td\u003e\n\u003ctd\u003e410,000 psi\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eStiffness under load; higher MOE means less panel flex under bass pressure, less resonance\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eFace Screw Holding\u003c\/td\u003e\n\u003ctd\u003e325 lbs\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eHow firmly the panel surface holds a screw; critical for baffle joint integrity over time\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eEdge Screw Holding\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\"\u003e250 lbs\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\"\u003e\n\u003cp\u003ePanel edge retention — relevant for every joint that isn't face-to-face\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"ai-mat-footer-note\"\u003eSpecifications are published mill data from Langboard. All values are for 3\/4\" (18mm) panels at standard conditions. Actual performance is subject to manufacturing tolerances.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why\"\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eInternal Bond\u003c\/span\u003e\n\u003ch4\u003e200 psi — The Number That Actually Matters for Enclosures\u003c\/h4\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eThe internal bond rating measures how well the MDF panel resists delamination under sustained pressure applied perpendicular to the face. In a subwoofer enclosure, every bass transient generates a pressure pulse that pushes outward on every panel simultaneously. A panel that begins to delaminate internally loses stiffness gradually — the symptoms are slow: a box that starts to sound softer, less defined, less punchy over months of use. \u003cstrong\u003e200 psi internal bond\u003c\/strong\u003e is the spec that determines how long this enclosure holds its acoustic integrity under daily use at real power levels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eStiffness\u003c\/span\u003e\n\u003ch4\u003e410,000 psi MOE — Less Flex, Less Resonance\u003c\/h4\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eThe modulus of elasticity measures panel stiffness — resistance to bending under load. A stiffer panel flexes less under the pressure generated by a high-excursion driver at volume. Panel flex is a source of acoustic coloration: the panel itself begins to radiate sound at its own resonant frequency, adding distortion to the output. \u003cstrong\u003e410,000 psi stiffness\u003c\/strong\u003e combined with V-groove and dado joinery means the panels stay rigid and the bracing controls resonance at the structure level — not the panel level. The bass you hear comes from the driver, not the box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eScrew Holding\u003c\/span\u003e\n\u003ch4\u003e325 lb Face \/ 250 lb Edge — Joints That Stay Locked\u003c\/h4\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eScrew holding strength determines how firmly the panel grips a fastener at the face and at the edge. This matters most at the baffle joint — where the front panel meets the side panels and where the driver is mounted. A panel with low screw holding strength allows fasteners to loosen over time under vibration, leading to air gaps at the joint and loss of acoustic seal. \u003cstrong\u003e325 lb face screw holding strength\u003c\/strong\u003e means the baffle hardware stays put. Combined with dado joinery and adhesive, the front panel on a Proline X Performance Series enclosure is not going anywhere.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eSourcing\u003c\/span\u003e\n\u003ch4\u003eNamed Panel Stock — Not \"Premium MDF\"\u003c\/h4\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eThe phrase \"premium MDF\" or \"high-density MDF\" appears on marketing copy for enclosures across every price point, from $40 to $400. It is not a specification — it is a description with no defined standard. \u003cstrong\u003eLangboard Elite\u003c\/strong\u003e is a named, sourced, mill-documented product with published data. We name it in our copy because naming it holds us accountable to the spec. You can look up Langboard Elite independently, verify the numbers on this page, and confirm you are getting what we say you are getting. That is the point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-product__block main-product__block-custom_liquid\"\u003e\n\u003cdiv class=\"m-product-text\"\u003e\n\u003cdiv class=\"ai-cheat-block\"\u003e\n\u003cdiv class=\"ai-cheat-content\"\u003e\n\u003cul class=\"cheat-sheet-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e High-output daily builds \/ Trunk and SUV installs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Dual 12\" Sealed — Wedge Style\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning:\u003c\/strong\u003e \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSonic Character:\u003c\/strong\u003e Deep, High-Output, Musical\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-product__block main-product__block-ai_value_list\"\u003e\n\u003cdiv style=\"margin-bottom: 0px;\" class=\"ai-value-list-block m-product-info__block\"\u003e\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 5px;\" class=\"ai-list-container\"\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px;\" class=\"ai-list-item\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-intro\"\u003e\n\u003cspan class=\"ai-card-label\"\u003e\u003c\/span\u003e\n\u003ch3\u003eBuilt From a Spec Sheet, Not a Sales Sheet\u003c\/h3\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eEvery Proline X Performance Series enclosure is CNC-cut from \u003cstrong\u003eLangboard Elite MDF — 3\/4\" (18mm) panels\u003c\/strong\u003e produced to published mill specifications. Most enclosure manufacturers source generic MDF without published data. We can tell you the internal bond rating, the modulus of elasticity, the modulus of rupture, and the face and edge screw holding strength for every panel in this enclosure — because we chose the material based on those numbers, not on price or availability.\u003c\/p\u003e\n\u003cp\u003eLangboard Elite is produced in the United States. The specifications below are pulled directly from Langboard's published mill data and are verifiable. This is the same panel stock used in our full Proline X lineup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-table-wrap\" style=\"text-align: left;\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eSpecifications\u003c\/span\u003e\n\u003ch3 style=\"text-align: left;\"\u003eLangboard Elite MDF — Published Mill Data\u003c\/h3\u003e\n\u003cdiv class=\"ai-card-divider\" style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ctable class=\"ai-mat-table\" style=\"margin-left: 0px; margin-right: auto;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003cth\u003eWhy It Matters\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003ePanel Stock\u003c\/td\u003e\n\u003ctd\u003eLangboard Elite MDF\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eNamed, verifiable panel source — not generic \"high-density MDF\"\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e3\/4\" (18mm)\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eIndustry standard for subwoofer enclosures; panels below this flex under pressure\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eDensity\u003c\/td\u003e\n\u003ctd\u003e48.5 lbs\/ft³\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eHigher density = less porosity, better screw retention, reduced resonance\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eInternal Bond\u003c\/td\u003e\n\u003ctd\u003e200 psi\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eMeasures resistance to delamination under sustained internal pressure — the most enclosure-relevant spec on this sheet\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eModulus of Rupture (MOR)\u003c\/td\u003e\n\u003ctd\u003e4,200 psi\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eBending strength before the panel breaks — relevant for larger unsupported baffle spans\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eModulus of Elasticity (MOE)\u003c\/td\u003e\n\u003ctd\u003e410,000 psi\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eStiffness under load; higher MOE means less panel flex under bass pressure, less resonance\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eFace Screw Holding\u003c\/td\u003e\n\u003ctd\u003e325 lbs\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eHow firmly the panel surface holds a screw; critical for baffle joint integrity over time\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eEdge Screw Holding\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\"\u003e250 lbs\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\"\u003e\n\u003cp\u003ePanel edge retention — relevant for every joint that isn't face-to-face\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"ai-mat-footer-note\"\u003eSpecifications are published mill data from Langboard. All values are for 3\/4\" (18mm) panels at standard conditions. Actual performance is subject to manufacturing tolerances.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why\"\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eInternal Bond\u003c\/span\u003e\n\u003ch4\u003e200 psi — The Number That Actually Matters for Enclosures\u003c\/h4\u003e\n\u003cp\u003eThe internal bond rating measures how well the MDF panel resists delamination under sustained pressure applied perpendicular to the face. In a subwoofer enclosure, every bass transient generates a pressure pulse that pushes outward on every panel simultaneously. A panel that begins to delaminate internally loses stiffness gradually — the symptoms are slow: a box that starts to sound softer, less defined, less punchy over months of use. \u003cstrong\u003e200 psi internal bond\u003c\/strong\u003e is the spec that determines how long this enclosure holds its acoustic integrity under daily use at real power levels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eStiffness\u003c\/span\u003e\n\u003ch4\u003e410,000 psi MOE — Less Flex, Less Resonance\u003c\/h4\u003e\n\u003cp\u003eThe modulus of elasticity measures panel stiffness — resistance to bending under load. A stiffer panel flexes less under the pressure generated by a high-excursion driver at volume. Panel flex is a source of acoustic coloration: the panel itself begins to radiate sound at its own resonant frequency, adding distortion to the output. \u003cstrong\u003e410,000 psi stiffness\u003c\/strong\u003e combined with V-groove and dado joinery means the panels stay rigid and the bracing controls resonance at the structure level — not the panel level. The bass you hear comes from the driver, not the box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eScrew Holding\u003c\/span\u003e\n\u003ch4\u003e325 lb Face \/ 250 lb Edge — Joints That Stay Locked\u003c\/h4\u003e\n\u003cp\u003eScrew holding strength determines how firmly the panel grips a fastener at the face and at the edge. This matters most at the baffle joint — where the front panel meets the side panels and where the driver is mounted. A panel with low screw holding strength allows fasteners to loosen over time under vibration, leading to air gaps at the joint and loss of acoustic seal. \u003cstrong\u003e325 lb face screw holding strength\u003c\/strong\u003e means the baffle hardware stays put. Combined with dado joinery and adhesive, the front panel on a Proline X Performance Series enclosure is not going anywhere.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eSourcing\u003c\/span\u003e\n\u003ch4\u003eNamed Panel Stock — Not \"Premium MDF\"\u003c\/h4\u003e\n\u003cp\u003eThe phrase \"premium MDF\" or \"high-density MDF\" appears on marketing copy for enclosures across every price point, from $40 to $400. It is not a specification — it is a description with no defined standard. \u003cstrong\u003eLangboard Elite\u003c\/strong\u003e is a named, sourced, mill-documented product with published data. We name it in our copy because naming it holds us accountable to the spec. You can look up Langboard Elite independently, verify the numbers on this page, and confirm you are getting what we say you are getting. That is the point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Prodigy Audio","offers":[{"title":"Default Title","offer_id":63463195902321,"sku":null,"price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/ffff.jpg?v=1777075484"},{"product_id":"proline-x-dual-10-sealed-system-loaded-with-prodigy-nb2","title":"Proline X | Dual 10\"  Wedge Sealed System | Loaded with Prodigy NB2","description":"\u003cdiv style=\"text-align: center;\" class=\"spec-item\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/original.webp?v=1772883216\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/Noziy_Boy_Logo222.png?v=1776537719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/pro_line.png?v=1777077488\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"main-product__block main-product__block-custom_liquid\"\u003e\n\u003cdiv class=\"m-product-text\"\u003e\n\u003cdiv class=\"ai-cheat-block\"\u003e\n\u003cdiv class=\"ai-cheat-content\"\u003e\n\u003cul class=\"cheat-sheet-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e High-output daily builds \/ Trunk and SUV installs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Dual 12\" Sealed — Wedge Style\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSonic Character:\u003c\/strong\u003e Deep, High-Output, Musical\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-product__block main-product__block-ai_value_list\"\u003e\n\u003cdiv style=\"margin-bottom: 0px;\" class=\"ai-value-list-block m-product-info__block\"\u003e\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 5px;\" class=\"ai-list-container\"\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px;\" class=\"ai-list-item\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0;\"\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" loading=\"lazy\" width=\"30\" srcset=\"\/\/audiointensity.com\/cdn\/shop\/files\/united-states-of-america.png?v=1768578060\u0026amp;width=30 30w\" alt=\"USA Flag Rounded\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/united-states-of-america.png?v=1768578060\u0026amp;width=30\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; text-align: center;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e Proline X Enclosure — Built in Tennessee \u003c\/span\u003e \u003cspan style=\"font-size: 13px; opacity: 0.8; line-height: 1.2;\"\u003e CNC-cut Langboard Elite 3\/4\" MDF, V-groove + dado joinery, recessed ABS\/Carbon Fiber terminal cup. \u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px; text-align: center;\" class=\"ai-list-item\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0;\"\u003e\u003cimg loading=\"lazy\" width=\"30\" srcset=\"\/\/audiointensity.com\/cdn\/shop\/files\/icons8-speaker-medium-volume-100.png?v=1735880900\u0026amp;width=30 30w\" alt=\"\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/icons8-speaker-medium-volume-100.png?v=1735880900\u0026amp;width=30\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e Driver + Enclosure — Matched and Pre-Wired \u003c\/span\u003e \u003cspan style=\"font-size: 13px; opacity: 0.8; line-height: 1.2;\"\u003e Subwoofer pre-installed and wired to the correct impedance. Connect your amplifier and it's ready to run. \u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: center; gap: 12px;\" class=\"ai-list-item\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0; text-align: center;\"\u003e\u003cimg loading=\"lazy\" width=\"30\" srcset=\"\/\/audiointensity.com\/cdn\/shop\/files\/Shipping-icon.png?v=1773789236\u0026amp;width=30 30w\" alt=\"Shipping Icon\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/Shipping-icon.png?v=1773789236\u0026amp;width=30\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; text-align: center;\"\u003e\n\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e Shipping Included \u003c\/span\u003e \u003c\/span\u003e\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e Assembled to order in 2–5 business days \u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px;\"\u003e\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e \u003c\/span\u003edays. No freight charges at checkout. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"ai-whats-included__title\"\u003eWhat's Included\u003c\/h2\u003e\n\u003cdiv class=\"ai-whats-included__content\"\u003e\n\u003cdiv class=\"metafield-rich_text_field\"\u003e\n\u003cul\u003e\n\u003cli\u003eProline X Sealed wedge enclosure — Dual Sealed 10\" configuration\u003c\/li\u003e\n\u003cli\u003eProdigy Audio NB2 10\" subwoofers pre-installed\u003c\/li\u003e\n\u003cli\u003ePre-wired 12g OFC speaker wire \u003c\/li\u003e\n\u003cli\u003eRecessed ABS\/Carbon Fiber Composite terminal cup — stainless hardware, copper ring terminals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(189, 5, 5);\"\u003e\u003cem\u003eAmplifier, power wire, and RCA cables not included\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eShipping is included in the price. No freight charges at checkout — what you see is what you pay.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAssembly \u0026amp; Lead Time\u003c\/strong\u003e\u003cbr\u003eProline X enclosures ship assembled to order. Components are CNC-cut and staged in inventory. Once your order is placed, allow 2–5 business days for final assembly, bonding, and finishing before it ships.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Ships\u003c\/strong\u003e\u003cbr\u003eSingle 8\", 10\", and most 12\" enclosures ship UPS Ground. Oversize enclosures, some loaded enclosures, and anything over 160 lbs ship LTL freight on a pallet. If your order ships freight, the carrier will contact you to schedule a delivery window — provide a valid phone number at checkout. Freight delivery is curbside; the driver is not responsible for moving the enclosure past the curb.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspect Before You Sign\u003c\/strong\u003e\u003cbr\u003eFor ground shipments, photograph any exterior box damage before opening. For freight, inspect the pallet while the driver is present. If you see damage, write \"DAMAGED\" on the Bill of Lading before signing. Do not sign a clean receipt for a visibly damaged freight shipment — it closes the damage claim.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReturns\u003c\/strong\u003e\u003cbr\u003eNon-defective returns are subject to a 20% restocking fee and return shipping at buyer's expense. Enclosures that have been drilled into or modified are not eligible for return.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlaska \u0026amp; Hawaii\u003c\/strong\u003e\u003cbr\u003eAdditional charges may apply for shipments outside the contiguous 48 states.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-template--21933654835289__product-details-tabs\"\u003e\n\u003cdiv class=\"m-page-width\"\u003e\n\u003cdiv class=\"m-section__wrapper\"\u003e\n\u003cdiv class=\"m-section__content m-tabs m-tabs--responsive m-scroll-trigger animate--fade-in-up\"\u003e\n\u003cdiv class=\"m-tabs__content m-product-collapsible\"\u003e\n\u003cdiv style=\"--content-max-height: 556px; opacity: 1;\" data-index=\"0\" data-block-type=\"description\" class=\"m-accordion--item m-tab-content--description m-tab-content open active\"\u003e\n\u003cdiv style=\"opacity: 1;\" class=\"m-accordion--item-content max-height-set\"\u003e\n\u003cdiv class=\"m-tab-content__inner\"\u003e\n\u003cdiv class=\"rte\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe Proline X Dual 10\" SealedSystem pairs the \u003cstrong\u003eProdigy Audio NB2-10 10\" subwoofer\u003c\/strong\u003e with a \u003cstrong\u003eProline X ported wedge enclosure\u003c\/strong\u003e built at our Tennessee facility.  connect your amplifier and it's ready to run.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eEvery panel is CNC-cut from \u003cstrong\u003e3\/4\" Langboard Elite MDF\u003c\/strong\u003e at our Tennessee facility — a mill-certified panel stock with a \u003cstrong\u003e200 psi internal bond rating\u003c\/strong\u003e, \u003cstrong\u003e410,000 psi modulus of elasticity\u003c\/strong\u003e, and \u003cstrong\u003e325 lb face screw holding strength\u003c\/strong\u003e. In a ported enclosure, panel rigidity directly affects port output. Any flex in the cabinet walls bleeds energy away from the port and into the structure — the result is soft, undefined bass at volume. This box does not flex.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eVersion III construction uses \u003cstrong\u003eV-groove combined with dado joinery\u003c\/strong\u003e throughout. Each mating panel is channeled into a mechanical lock before adhesive is applied, increasing glue surface area and eliminating the micro-gaps that develop in standard butt joint construction over time. The terminal cup is \u003cstrong\u003ebuilt in-house at our Tennessee facility\u003c\/strong\u003e — ABS\/Carbon Fiber Composite body, recessed mount, stainless steel hardware, aluminum landing plates, copper ring terminals, and \u003cstrong\u003e12g OFC speaker wire pre-installed\u003c\/strong\u003e. Nothing to source. Nothing to upgrade. It ships ready to wire.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection class=\"shopify-section section\" id=\"shopify-section-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"section-template--21933654835289__proline_features_BV9HTU-padding\"\u003e\n\u003cdiv class=\"proline-features-container-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-features-header-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-features-header-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch2 class=\"proline-features-title-template--21933654835289__proline_features_BV9HTU\"\u003eWhy Proline X?\u003c\/h2\u003e\n\u003cp class=\"proline-features-desc-template--21933654835289__proline_features_BV9HTU\"\u003eMost enclosures are built to a price point. Proline X is built to a spec. Every box starts with published-data MDF, gets CNC-cut to exact internal volume, and is assembled by hand in our Tennessee facility. The difference shows up in the measurements — and in how the box holds up two years into daily use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"proline-features-grid-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-feature-block-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-icon-wrapper-template--21933654835289__proline_features_BV9HTU\"\u003e\u003cimg alt=\"CNC-Cut to Spec\" height=\"50\" width=\"50\" loading=\"lazy\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/milling-machine.png?v=1768578153\u0026amp;width=200\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-text-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch3 class=\"proline-feature-heading-template--21933654835289__proline_features_BV9HTU\"\u003eCNC-Cut to Spec\u003c\/h3\u003e\n\u003cp class=\"proline-feature-body-template--21933654835289__proline_features_BV9HTU\"\u003ePanels are machine-cut on ShopSabre CNC routers and joined with V-groove and dado joinery. Consistent geometry, no hand-cut variance, no gaps at the joints.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-block-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-icon-wrapper-template--21933654835289__proline_features_BV9HTU\"\u003e\u003cimg alt=\"Handcrafted in USA\" height=\"50\" width=\"50\" loading=\"lazy\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/united-states-of-america.png?v=1768578060\u0026amp;width=200\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-text-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch3 class=\"proline-feature-heading-template--21933654835289__proline_features_BV9HTU\"\u003eHandcrafted in USA\u003c\/h3\u003e\n\u003cp class=\"proline-feature-body-template--21933654835289__proline_features_BV9HTU\"\u003eHand-assembled at our facility in Tullahoma, TN. Every enclosure is inspected before it ships.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-block-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-icon-wrapper-template--21933654835289__proline_features_BV9HTU\"\u003e\u003cimg alt=\"Tuned to the Build\" height=\"50\" width=\"50\" loading=\"lazy\" src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/maintenance.png?v=1768578255\u0026amp;width=200\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-text-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch3 class=\"proline-feature-heading-template--21933654835289__proline_features_BV9HTU\"\u003eTuned to the Build\u003c\/h3\u003e\n\u003cp class=\"proline-feature-body-template--21933654835289__proline_features_BV9HTU\"\u003eInternal volume and port geometry are calculated to spec and CNC-cut to exact dimensions. The box performs the same way every time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eSealed — Wedge Style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eDual 10\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Volume\u003c\/td\u003e\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort Type\u003c\/td\u003e\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort Area\u003c\/td\u003e\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTuning Frequency\u003c\/td\u003e\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Dimensions\u003c\/td\u003e\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCutout Diameter\u003c\/td\u003e\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Mounting Depth\u003c\/td\u003e\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMDF\u003c\/td\u003e\n\u003ctd\u003eLangboard Elite 3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJoinery\u003c\/td\u003e\n\u003ctd\u003eV-groove + dado\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Cup\u003c\/td\u003e\n\u003ctd\u003eRecessed ABS\/Carbon Fiber Composite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeaker Wire\u003c\/td\u003e\n\u003ctd\u003e12g OFC pre-installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eDark Gray Trunkliner \/ Plush Black (+$10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle Fitment\u003c\/td\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"ai-mat-intro\"\u003e\n\u003cspan class=\"ai-card-label\"\u003e\u003c\/span\u003e\n\u003ch3\u003eBuilt From a Spec Sheet, Not a Sales Sheet\u003c\/h3\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eEvery Proline X Performance Series enclosure is CNC-cut from \u003cstrong\u003eLangboard Elite MDF — 3\/4\" (18mm) panels\u003c\/strong\u003e produced to published mill specifications. Most enclosure manufacturers source generic MDF without published data. We can tell you the internal bond rating, the modulus of elasticity, the modulus of rupture, and the face and edge screw holding strength for every panel in this enclosure — because we chose the material based on those numbers, not on price or availability.\u003c\/p\u003e\n\u003cp\u003eLangboard Elite is produced in the United States. The specifications below are pulled directly from Langboard's published mill data and are verifiable. This is the same panel stock used in our full Proline X lineup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-table-wrap\" style=\"text-align: left;\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eSpecifications\u003c\/span\u003e\n\u003ch3 style=\"text-align: left;\"\u003eLangboard Elite MDF — Published Mill Data\u003c\/h3\u003e\n\u003cdiv class=\"ai-card-divider\" style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ctable class=\"ai-mat-table\" style=\"margin-left: 0px; margin-right: auto;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003cth\u003eWhy It Matters\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003ePanel Stock\u003c\/td\u003e\n\u003ctd\u003eLangboard Elite MDF\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eNamed, verifiable panel source — not generic \"high-density MDF\"\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e3\/4\" (18mm)\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eIndustry standard for subwoofer enclosures; panels below this flex under pressure\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eDensity\u003c\/td\u003e\n\u003ctd\u003e48.5 lbs\/ft³\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eHigher density = less porosity, better screw retention, reduced resonance\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eInternal Bond\u003c\/td\u003e\n\u003ctd\u003e200 psi\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eMeasures resistance to delamination under sustained internal pressure — the most enclosure-relevant spec on this sheet\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eModulus of Rupture (MOR)\u003c\/td\u003e\n\u003ctd\u003e4,200 psi\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eBending strength before the panel breaks — relevant for larger unsupported baffle spans\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eModulus of Elasticity (MOE)\u003c\/td\u003e\n\u003ctd\u003e410,000 psi\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eStiffness under load; higher MOE means less panel flex under bass pressure, less resonance\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eFace Screw Holding\u003c\/td\u003e\n\u003ctd\u003e325 lbs\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eHow firmly the panel surface holds a screw; critical for baffle joint integrity over time\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eEdge Screw Holding\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\"\u003e250 lbs\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\"\u003e\n\u003cp\u003ePanel edge retention — relevant for every joint that isn't face-to-face\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"ai-mat-footer-note\"\u003eSpecifications are published mill data from Langboard. All values are for 3\/4\" (18mm) panels at standard conditions. Actual performance is subject to manufacturing tolerances.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why\"\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eInternal Bond\u003c\/span\u003e\n\u003ch4\u003e200 psi — The Number That Actually Matters for Enclosures\u003c\/h4\u003e\n\u003cp\u003eThe internal bond rating measures how well the MDF panel resists delamination under sustained pressure applied perpendicular to the face. In a subwoofer enclosure, every bass transient generates a pressure pulse that pushes outward on every panel simultaneously. A panel that begins to delaminate internally loses stiffness gradually — the symptoms are slow: a box that starts to sound softer, less defined, less punchy over months of use. \u003cstrong\u003e200 psi internal bond\u003c\/strong\u003e is the spec that determines how long this enclosure holds its acoustic integrity under daily use at real power levels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eStiffness\u003c\/span\u003e\n\u003ch4\u003e410,000 psi MOE — Less Flex, Less Resonance\u003c\/h4\u003e\n\u003cp\u003eThe modulus of elasticity measures panel stiffness — resistance to bending under load. A stiffer panel flexes less under the pressure generated by a high-excursion driver at volume. Panel flex is a source of acoustic coloration: the panel itself begins to radiate sound at its own resonant frequency, adding distortion to the output. \u003cstrong\u003e410,000 psi stiffness\u003c\/strong\u003e combined with V-groove and dado joinery means the panels stay rigid and the bracing controls resonance at the structure level — not the panel level. The bass you hear comes from the driver, not the box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eScrew Holding\u003c\/span\u003e\n\u003ch4\u003e325 lb Face \/ 250 lb Edge — Joints That Stay Locked\u003c\/h4\u003e\n\u003cp\u003eScrew holding strength determines how firmly the panel grips a fastener at the face and at the edge. This matters most at the baffle joint — where the front panel meets the side panels and where the driver is mounted. A panel with low screw holding strength allows fasteners to loosen over time under vibration, leading to air gaps at the joint and loss of acoustic seal. \u003cstrong\u003e325 lb face screw holding strength\u003c\/strong\u003e means the baffle hardware stays put. Combined with dado joinery and adhesive, the front panel on a Proline X Performance Series enclosure is not going anywhere.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eSourcing\u003c\/span\u003e\n\u003ch4\u003eNamed Panel Stock — Not \"Premium MDF\"\u003c\/h4\u003e\n\u003cp\u003eThe phrase \"premium MDF\" or \"high-density MDF\" appears on marketing copy for enclosures across every price point, from $40 to $400. It is not a specification — it is a description with no defined standard. \u003cstrong\u003eLangboard Elite\u003c\/strong\u003e is a named, sourced, mill-documented product with published data. We name it in our copy because naming it holds us accountable to the spec. You can look up Langboard Elite independently, verify the numbers on this page, and confirm you are getting what we say you are getting. That is the point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-product__block main-product__block-custom_liquid\"\u003e\n\u003cdiv class=\"m-product-text\"\u003e\n\u003cdiv class=\"ai-cheat-block\"\u003e\n\u003cdiv class=\"ai-cheat-content\"\u003e\n\u003cul class=\"cheat-sheet-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e High-output daily builds \/ Trunk and SUV installs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Dual  10\" Sealed — Wedge Style\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning:\u003c\/strong\u003e \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSonic Character:\u003c\/strong\u003e Deep, High-Output, Musical\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-intro\"\u003e\n\u003cspan class=\"ai-card-label\"\u003e\u003c\/span\u003e\n\u003ch3\u003eBuilt From a Spec Sheet, Not a Sales Sheet\u003c\/h3\u003e\n\u003cp\u003eEvery Proline X Performance Series enclosure is CNC-cut from \u003cstrong\u003eLangboard Elite MDF — 3\/4\" (18mm) panels\u003c\/strong\u003e produced to published mill specifications. Most enclosure manufacturers source generic MDF without published data. We can tell you the internal bond rating, the modulus of elasticity, the modulus of rupture, and the face and edge screw holding strength for every panel in this enclosure — because we chose the material based on those numbers, not on price or availability.\u003c\/p\u003e\n\u003cp\u003eLangboard Elite is produced in the United States. The specifications below are pulled directly from Langboard's published mill data and are verifiable. This is the same panel stock used in our full Proline X lineup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-table-wrap\" style=\"text-align: left;\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eSpecifications\u003c\/span\u003e\n\u003ch3 style=\"text-align: left;\"\u003eLangboard Elite MDF — Published Mill Data\u003c\/h3\u003e\n\u003cdiv class=\"ai-card-divider\" style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ctable class=\"ai-mat-table\" style=\"margin-left: 0px; margin-right: auto;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003cth\u003eWhy It Matters\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003ePanel Stock\u003c\/td\u003e\n\u003ctd\u003eLangboard Elite MDF\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eNamed, verifiable panel source — not generic \"high-density MDF\"\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e3\/4\" (18mm)\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eIndustry standard for subwoofer enclosures; panels below this flex under pressure\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eDensity\u003c\/td\u003e\n\u003ctd\u003e48.5 lbs\/ft³\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eHigher density = less porosity, better screw retention, reduced resonance\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eInternal Bond\u003c\/td\u003e\n\u003ctd\u003e200 psi\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eMeasures resistance to delamination under sustained internal pressure — the most enclosure-relevant spec on this sheet\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eModulus of Rupture (MOR)\u003c\/td\u003e\n\u003ctd\u003e4,200 psi\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eBending strength before the panel breaks — relevant for larger unsupported baffle spans\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eModulus of Elasticity (MOE)\u003c\/td\u003e\n\u003ctd\u003e410,000 psi\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eStiffness under load; higher MOE means less panel flex under bass pressure, less resonance\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: left;\"\u003e\n\u003ctd\u003eFace Screw Holding\u003c\/td\u003e\n\u003ctd\u003e325 lbs\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eHow firmly the panel surface holds a screw; critical for baffle joint integrity over time\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\"\u003eEdge Screw Holding\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\"\u003e250 lbs\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\"\u003e\n\u003cp\u003ePanel edge retention — relevant for every joint that isn't face-to-face\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"ai-mat-footer-note\"\u003eSpecifications are published mill data from Langboard. All values are for 3\/4\" (18mm) panels at standard conditions. Actual performance is subject to manufacturing tolerances.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why\"\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eInternal Bond\u003c\/span\u003e\n\u003ch4\u003e200 psi — The Number That Actually Matters for Enclosures\u003c\/h4\u003e\n\u003cp\u003eThe internal bond rating measures how well the MDF panel resists delamination under sustained pressure applied perpendicular to the face. In a subwoofer enclosure, every bass transient generates a pressure pulse that pushes outward on every panel simultaneously. A panel that begins to delaminate internally loses stiffness gradually — the symptoms are slow: a box that starts to sound softer, less defined, less punchy over months of use. \u003cstrong\u003e200 psi internal bond\u003c\/strong\u003e is the spec that determines how long this enclosure holds its acoustic integrity under daily use at real power levels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eStiffness\u003c\/span\u003e\n\u003ch4\u003e410,000 psi MOE — Less Flex, Less Resonance\u003c\/h4\u003e\n\u003cp\u003eThe modulus of elasticity measures panel stiffness — resistance to bending under load. A stiffer panel flexes less under the pressure generated by a high-excursion driver at volume. Panel flex is a source of acoustic coloration: the panel itself begins to radiate sound at its own resonant frequency, adding distortion to the output. \u003cstrong\u003e410,000 psi stiffness\u003c\/strong\u003e combined with V-groove and dado joinery means the panels stay rigid and the bracing controls resonance at the structure level — not the panel level. The bass you hear comes from the driver, not the box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eScrew Holding\u003c\/span\u003e\n\u003ch4\u003e325 lb Face \/ 250 lb Edge — Joints That Stay Locked\u003c\/h4\u003e\n\u003cp\u003eScrew holding strength determines how firmly the panel grips a fastener at the face and at the edge. This matters most at the baffle joint — where the front panel meets the side panels and where the driver is mounted. A panel with low screw holding strength allows fasteners to loosen over time under vibration, leading to air gaps at the joint and loss of acoustic seal. \u003cstrong\u003e325 lb face screw holding strength\u003c\/strong\u003e means the baffle hardware stays put. Combined with dado joinery and adhesive, the front panel on a Proline X Performance Series enclosure is not going anywhere.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eSourcing\u003c\/span\u003e\n\u003ch4\u003eNamed Panel Stock — Not \"Premium MDF\"\u003c\/h4\u003e\n\u003cp\u003ethe phrase \"premium MDF\" or \"high-density MDF\" appears on marketing copy for enclosures across every price point, from $40 to $400. It is not a specification — it is a description with no defined standard. \u003cstrong\u003eLangboard Elite\u003c\/strong\u003e is a named, sourced, mill-documented product with published data. We name it in our copy because naming it holds us accountable to the spec. You can look up Langboard Elite independently, verify the numbers on this page, and confirm you are getting what we say you are getting. That is the point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Prodigy Audio","offers":[{"title":"Default Title","offer_id":63463264092529,"sku":null,"price":469.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/ffff.jpg?v=1777075484"},{"product_id":"proline-x-dual-10-wedge-sealed-system-loaded-with-prodigy-nb2","title":"Proline-X | Sealed 10\" Enclosure | Loaded with Prodigy Audio NB3","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/original.webp?v=1772883216\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/Noziy_Boy_Logo222.png?v=1776537719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/pro_line.png?v=1777077488\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"main-product__block main-product__block-custom_liquid\"\u003e\n\u003cdiv class=\"m-product-text\"\u003e\n\u003cdiv class=\"ai-cheat-block\"\u003e\n\u003cdiv class=\"ai-cheat-content\"\u003e\n\u003cdiv class=\"ai-list-item\" style=\"display: flex; align-items: center; gap: 12px;\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0;\"\u003e\u003cimg src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/united-states-of-america.png?v=1768578060\u0026amp;width=30\" alt=\"USA Flag Rounded\" srcset=\"\/\/audiointensity.com\/cdn\/shop\/files\/united-states-of-america.png?v=1768578060\u0026amp;width=30 30w\" width=\"30\" loading=\"lazy\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; text-align: center;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e Proline X Enclosure — Built in Tennessee \u003c\/span\u003e \u003cspan style=\"font-size: 13px; opacity: 0.8; line-height: 1.2;\"\u003e CNC-cut Langboard Elite 3\/4\" MDF, V-groove + dado joinery, recessed ABS\/Carbon Fiber terminal cup. \u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-list-item\" style=\"display: flex; align-items: center; gap: 12px; text-align: center;\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0;\"\u003e\u003cimg src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/icons8-speaker-medium-volume-100.png?v=1735880900\u0026amp;width=30\" alt=\"\" srcset=\"\/\/audiointensity.com\/cdn\/shop\/files\/icons8-speaker-medium-volume-100.png?v=1735880900\u0026amp;width=30 30w\" width=\"30\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e Driver + Enclosure — Matched and Pre-Wired \u003c\/span\u003e \u003cspan style=\"font-size: 13px; opacity: 0.8; line-height: 1.2;\"\u003e Subwoofer pre-installed and wired to the correct impedance. Connect your amplifier and it's ready to run. \u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-list-item\" style=\"display: flex; align-items: center; gap: 12px;\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/Shipping-icon.png?v=1773789236\u0026amp;width=30\" alt=\"Shipping Icon\" srcset=\"\/\/audiointensity.com\/cdn\/shop\/files\/Shipping-icon.png?v=1773789236\u0026amp;width=30 30w\" width=\"30\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; text-align: center;\"\u003e\n\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e Shipping Included \u003c\/span\u003e \u003c\/span\u003e\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e Assembled to order in 2–5 business days \u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; text-align: center;\"\u003e\n\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; text-align: center;\"\u003e\n\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; text-align: center;\"\u003e\n\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px;\"\u003e\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e \u003c\/span\u003edays. No freight charges at checkout. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(189, 5, 5);\"\u003e\u003cem\u003eAmplifier, power wire, and RCA cables not included\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eShipping is included in the price. No freight charges at checkout — what you see is what you pay.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAssembly \u0026amp; Lead Time\u003c\/strong\u003e\u003cbr\u003eProline X enclosures ship assembled to order. Components are CNC-cut and staged in inventory. Once your order is placed, allow 2–5 business days for final assembly, bonding, and finishing before it ships.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Ships\u003c\/strong\u003e\u003cbr\u003eSingle 8\", 10\", and most 12\" enclosures ship UPS Ground. Oversize enclosures, some loaded enclosures, and anything over 160 lbs ship LTL freight on a pallet. If your order ships freight, the carrier will contact you to schedule a delivery window — provide a valid phone number at checkout. Freight delivery is curbside; the driver is not responsible for moving the enclosure past the curb.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspect Before You Sign\u003c\/strong\u003e\u003cbr\u003eFor ground shipments, photograph any exterior box damage before opening. For freight, inspect the pallet while the driver is present. If you see damage, write \"DAMAGED\" on the Bill of Lading before signing. Do not sign a clean receipt for a visibly damaged freight shipment — it closes the damage claim.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReturns\u003c\/strong\u003e\u003cbr\u003eNon-defective returns are subject to a 20% restocking fee and return shipping at buyer's expense. Enclosures that have been drilled into or modified are not eligible for return.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlaska \u0026amp; Hawaii\u003c\/strong\u003e\u003cbr\u003eAdditional charges may apply for shipments outside the contiguous 48 states.\u003c\/p\u003e\n\u003cdiv id=\"shopify-section-template--21933654835289__product-details-tabs\" class=\"shopify-section\"\u003e\n\u003cdiv class=\"m-page-width\"\u003e\n\u003cdiv class=\"m-section__wrapper\"\u003e\n\u003cdiv class=\"m-section__content m-tabs m-tabs--responsive m-scroll-trigger animate--fade-in-up\"\u003e\n\u003cdiv class=\"m-tabs__content m-product-collapsible\"\u003e\n\u003cdiv class=\"m-accordion--item m-tab-content--description m-tab-content open active\" data-block-type=\"description\" data-index=\"0\" style=\"--content-max-height: 556px; opacity: 1;\"\u003e\n\u003cdiv class=\"m-accordion--item-content max-height-set\" style=\"opacity: 1;\"\u003e\n\u003cdiv class=\"m-tab-content__inner\"\u003e\n\u003cdiv class=\"rte\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe Proline X single 10\" SealedSystem pairs the \u003cstrong\u003eProdigy Audio NB2-10 10\" subwoofer\u003c\/strong\u003e with a \u003cstrong\u003eProline X ported wedge enclosure\u003c\/strong\u003e built at our Tennessee facility.  connect your amplifier and it's ready to run.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eEvery panel is CNC-cut from \u003cstrong\u003e3\/4\" Langboard Elite MDF\u003c\/strong\u003e at our Tennessee facility — a mill-certified panel stock with a \u003cstrong\u003e200 psi internal bond rating\u003c\/strong\u003e, \u003cstrong\u003e410,000 psi modulus of elasticity\u003c\/strong\u003e, and \u003cstrong\u003e325 lb face screw holding strength\u003c\/strong\u003e. In a ported enclosure, panel rigidity directly affects port output. Any flex in the cabinet walls bleeds energy away from the port and into the structure — the result is soft, undefined bass at volume. This box does not flex.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eVersion III construction uses \u003cstrong\u003eV-groove combined with dado joinery\u003c\/strong\u003e throughout. Each mating panel is channeled into a mechanical lock before adhesive is applied, increasing glue surface area and eliminating the micro-gaps that develop in standard butt joint construction over time. The terminal cup is \u003cstrong\u003ebuilt in-house at our Tennessee facility\u003c\/strong\u003e — ABS\/Carbon Fiber Composite body, recessed mount, stainless steel hardware, aluminum landing plates, copper ring terminals, and \u003cstrong\u003e12g OFC speaker wire pre-installed\u003c\/strong\u003e. Nothing to source. Nothing to upgrade. It ships ready to wire.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection id=\"shopify-section-template--21933654835289__proline_features_BV9HTU\" class=\"shopify-section section\"\u003e\n\u003cdiv class=\"section-template--21933654835289__proline_features_BV9HTU-padding\"\u003e\n\u003cdiv class=\"proline-features-container-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-features-header-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-features-header-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch2 class=\"proline-features-title-template--21933654835289__proline_features_BV9HTU\"\u003eWhy Proline X?\u003c\/h2\u003e\n\u003cp class=\"proline-features-desc-template--21933654835289__proline_features_BV9HTU\"\u003eMost enclosures are built to a price point. Proline X is built to a spec. Every box starts with published-data MDF, gets CNC-cut to exact internal volume, and is assembled by hand in our Tennessee facility. The difference shows up in the measurements — and in how the box holds up two years into daily use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"proline-features-grid-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-feature-block-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-icon-wrapper-template--21933654835289__proline_features_BV9HTU\"\u003e\u003cimg src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/milling-machine.png?v=1768578153\u0026amp;width=200\" loading=\"lazy\" width=\"50\" height=\"50\" alt=\"CNC-Cut to Spec\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-text-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch3 class=\"proline-feature-heading-template--21933654835289__proline_features_BV9HTU\"\u003eCNC-Cut to Spec\u003c\/h3\u003e\n\u003cp class=\"proline-feature-body-template--21933654835289__proline_features_BV9HTU\"\u003ePanels are machine-cut on ShopSabre CNC routers and joined with V-groove and dado joinery. Consistent geometry, no hand-cut variance, no gaps at the joints.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-block-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-icon-wrapper-template--21933654835289__proline_features_BV9HTU\"\u003e\u003cimg src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/united-states-of-america.png?v=1768578060\u0026amp;width=200\" loading=\"lazy\" width=\"50\" height=\"50\" alt=\"Handcrafted in USA\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-text-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch3 class=\"proline-feature-heading-template--21933654835289__proline_features_BV9HTU\"\u003eHandcrafted in USA\u003c\/h3\u003e\n\u003cp class=\"proline-feature-body-template--21933654835289__proline_features_BV9HTU\"\u003eHand-assembled at our facility in Tullahoma, TN. Every enclosure is inspected before it ships.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-block-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-icon-wrapper-template--21933654835289__proline_features_BV9HTU\"\u003e\u003cimg src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/maintenance.png?v=1768578255\u0026amp;width=200\" loading=\"lazy\" width=\"50\" height=\"50\" alt=\"Tuned to the Build\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-text-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch3 class=\"proline-feature-heading-template--21933654835289__proline_features_BV9HTU\"\u003eTuned to the Build\u003c\/h3\u003e\n\u003cp class=\"proline-feature-body-template--21933654835289__proline_features_BV9HTU\"\u003eInternal volume and port geometry are calculated to spec and CNC-cut to exact dimensions. The box performs the same way every time.\u003c\/p\u003e\n\u003ch3\u003eBuilt From a Spec Sheet, Not a Sales Sheet\u003c\/h3\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eEvery Proline X Performance Series enclosure is CNC-cut from \u003cstrong\u003eLangboard Elite MDF — 3\/4\" (18mm) panels\u003c\/strong\u003e produced to published mill specifications. Most enclosure manufacturers source generic MDF without published data. We can tell you the internal bond rating, the modulus of elasticity, the modulus of rupture, and the face and edge screw holding strength for every panel in this enclosure — because we chose the material based on those numbers, not on price or availability.\u003c\/p\u003e\n\u003cp\u003eLangboard Elite is produced in the United States. The specifications below are pulled directly from Langboard's published mill data and are verifiable. This is the same panel stock used in our full Proline X lineup.\u003c\/p\u003e\n\u003cdiv class=\"ai-mat-table-wrap\" style=\"text-align: left;\"\u003e\n\u003cp class=\"ai-mat-footer-note\"\u003eSpecifications are published mill data from Langboard. All values are for 3\/4\" (18mm) panels at standard conditions. Actual performance is subject to manufacturing tolerances.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why\"\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eInternal Bond\u003c\/span\u003e\n\u003ch4\u003e200 psi — The Number That Actually Matters for Enclosures\u003c\/h4\u003e\n\u003cp\u003eThe internal bond rating measures how well the MDF panel resists delamination under sustained pressure applied perpendicular to the face. In a subwoofer enclosure, every bass transient generates a pressure pulse that pushes outward on every panel simultaneously. A panel that begins to delaminate internally loses stiffness gradually — the symptoms are slow: a box that starts to sound softer, less defined, less punchy over months of use. \u003cstrong\u003e200 psi internal bond\u003c\/strong\u003e is the spec that determines how long this enclosure holds its acoustic integrity under daily use at real power levels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eStiffness\u003c\/span\u003e\n\u003ch4\u003e410,000 psi MOE — Less Flex, Less Resonance\u003c\/h4\u003e\n\u003cp\u003eThe modulus of elasticity measures panel stiffness — resistance to bending under load. A stiffer panel flexes less under the pressure generated by a high-excursion driver at volume. Panel flex is a source of acoustic coloration: the panel itself begins to radiate sound at its own resonant frequency, adding distortion to the output. \u003cstrong\u003e410,000 psi stiffness\u003c\/strong\u003e combined with V-groove and dado joinery means the panels stay rigid and the bracing controls resonance at the structure level — not the panel level. The bass you hear comes from the driver, not the box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eScrew Holding\u003c\/span\u003e\n\u003ch4\u003e325 lb Face \/ 250 lb Edge — Joints That Stay Locked\u003c\/h4\u003e\n\u003cp\u003eScrew holding strength determines how firmly the panel grips a fastener at the face and at the edge. This matters most at the baffle joint — where the front panel meets the side panels and where the driver is mounted. A panel with low screw holding strength allows fasteners to loosen over time under vibration, leading to air gaps at the joint and loss of acoustic seal. \u003cstrong\u003e325 lb face screw holding strength\u003c\/strong\u003e means the baffle hardware stays put. Combined with dado joinery and adhesive, the front panel on a Proline X Performance Series enclosure is not going anywhere.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eSourcing\u003c\/span\u003e\n\u003ch4\u003eNamed Panel Stock — Not \"Premium MDF\"\u003c\/h4\u003e\n\u003cp\u003ethe phrase \"premium MDF\" or \"high-density MDF\" appears on marketing copy for enclosures across every price point, from $40 to $400. It is not a specification — it is a description with no defined standard. \u003cstrong\u003eLangboard Elite\u003c\/strong\u003e is a named, sourced, mill-documented product with published data. We name it in our copy because naming it holds us accountable to the spec. You can look up Langboard Elite independently, verify the numbers on this page, and confirm you are getting what we say you are getting. That is the point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cp\u003eThe NB3 Series of woofers offer a ultra shallow depth for working well under and behind truck seats as well as other tight spaces. The 10” version, for example, is only 3.00” deep. These are designed to optimally perform in extremely small enclosures and in most truck prefab enclosures. Housed inside of a rugged metal basket, you will find an oversized 70 ounce ferrite magnet that uses a 2.5” voice coil with the ability to withstand temperatures up to 500f and has a FEA designed center pole vent for removing the btu’s from the motor and voice coil gap. The spiders are made of a high-quality Cotton and Nomex blend with stitched in flat tinsel leads. This woofer is a work horse and really shines in small, sealed and ported enclosures.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRMS Power 600 Watts on 10\"\u003c\/li\u003e\n\u003cli\u003e10” and 12” Sizes\u003c\/li\u003e\n\u003cli\u003eXmax of 11mm one way at 70% BL\u003c\/li\u003e\n\u003cli\u003eHigh temperature 4 layer copper voice coil\u003c\/li\u003e\n\u003cli\u003eBlack aluminum 2.5” voice coil former\u003c\/li\u003e\n\u003cli\u003eDual 4 ohm coil Treated paper cone with rubber surround\u003c\/li\u003e\n\u003cli\u003eCenter pole vent optimized for moving BTU’s\u003c\/li\u003e\n\u003cli\u003eStrong steel frame with logos\u003c\/li\u003e\n\u003cli\u003eQuality chrome push terminals\u003c\/li\u003e\n\u003cli\u003eFlat stitched tinsel leads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\n\u003ctable border=\"0\" width=\"300\" cellspacing=\"10\" cellpadding=\"10\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"25%\"\u003e \u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" width=\"60\"\u003eNB3-10d4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRE\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e6.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFS\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e36.406\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVAS\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e14.43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQes\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e0.495\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQms\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e2.282\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQts\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e0.407\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBL\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e23.365\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMms (g)\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e151.63\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCms\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e74.178\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSens\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e86.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXmax\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003eCut Outs \u0026amp; Sizes\u003c\/h3\u003e\n\u003ctable border=\"0\" cellspacing=\"0\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"91\"\u003e \u003ccol width=\"83\"\u003e \u003ccol width=\"64\"\u003e \u003ccol width=\"65\"\u003e \u003ccol width=\"68\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" width=\"91\" height=\"19\"\u003eModel\u003c\/td\u003e\n\u003ctd align=\"CENTER\" valign=\"BOTTOM\" width=\"68\"\u003eNB3-10d4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" height=\"19\"\u003eDepth\u003c\/td\u003e\n\u003ctd align=\"CENTER\" valign=\"BOTTOM\"\u003e3.000\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" height=\"19\"\u003eCutout\u003c\/td\u003e\n\u003ctd align=\"CENTER\" valign=\"BOTTOM\"\u003e9.125\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" height=\"19\"\u003eOverall Dia.\u003c\/td\u003e\n\u003ctd align=\"CENTER\" valign=\"BOTTOM\"\u003e10.250\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" height=\"19\"\u003eDisplacement\u003c\/td\u003e\n\u003ctd align=\"CENTER\" valign=\"BOTTOM\"\u003e0.10 ft3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSealed Enclosure\u003c\/td\u003e\n\u003ctd\u003e0.65 ft3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cspan style=\"color: rgb(184, 5, 5);\"\u003eFREE SHIPPING ON  THIS PRODUCT\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Prodigy Audio","offers":[{"title":"Default Title","offer_id":63510358688113,"sku":null,"price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/proline-x-sealed-10-enclosure-loaded-with-prodigy-audio-nb3subwoofer-enclosuresproline-x-2701125.jpg?v=1777123408"},{"product_id":"proline-x-sealed-12-enclosure-loaded-with-prodigy-audio-nb3","title":"Proline-X | Sealed 12\" Enclosure | Loaded with Prodigy Audio NB3","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/original.webp?v=1772883216\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/Noziy_Boy_Logo222.png?v=1776537719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/pro_line.png?v=1777077488\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"main-product__block main-product__block-custom_liquid\"\u003e\n\u003cdiv class=\"m-product-text\"\u003e\n\u003cdiv class=\"ai-cheat-block\"\u003e\n\u003cdiv class=\"ai-cheat-content\"\u003e\n\u003cdiv class=\"ai-list-item\" style=\"display: flex; align-items: center; gap: 12px;\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0;\"\u003e\u003cimg src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/united-states-of-america.png?v=1768578060\u0026amp;width=30\" alt=\"USA Flag Rounded\" srcset=\"\/\/audiointensity.com\/cdn\/shop\/files\/united-states-of-america.png?v=1768578060\u0026amp;width=30 30w\" width=\"30\" loading=\"lazy\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; text-align: center;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e Proline X Enclosure — Built in Tennessee \u003c\/span\u003e \u003cspan style=\"font-size: 13px; opacity: 0.8; line-height: 1.2;\"\u003e CNC-cut Langboard Elite 3\/4\" MDF, V-groove + dado joinery, recessed ABS\/Carbon Fiber terminal cup. \u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-list-item\" style=\"display: flex; align-items: center; gap: 12px; text-align: center;\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0;\"\u003e\u003cimg src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/icons8-speaker-medium-volume-100.png?v=1735880900\u0026amp;width=30\" alt=\"\" srcset=\"\/\/audiointensity.com\/cdn\/shop\/files\/icons8-speaker-medium-volume-100.png?v=1735880900\u0026amp;width=30 30w\" width=\"30\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e Driver + Enclosure — Matched and Pre-Wired \u003c\/span\u003e \u003cspan style=\"font-size: 13px; opacity: 0.8; line-height: 1.2;\"\u003e Subwoofer pre-installed and wired to the correct impedance. Connect your amplifier and it's ready to run. \u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-list-item\" style=\"display: flex; align-items: center; gap: 12px;\"\u003e\n\u003cdiv style=\"flex-shrink: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/Shipping-icon.png?v=1773789236\u0026amp;width=30\" alt=\"Shipping Icon\" srcset=\"\/\/audiointensity.com\/cdn\/shop\/files\/Shipping-icon.png?v=1773789236\u0026amp;width=30 30w\" width=\"30\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; text-align: center;\"\u003e\n\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e\u003cspan style=\"font-weight: 600; font-size: 14px; line-height: 1.2;\"\u003e Shipping Included \u003c\/span\u003e \u003c\/span\u003e\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e Assembled to order in 2–5 business days \u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; text-align: center;\"\u003e\n\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; text-align: center;\"\u003e\n\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px; text-align: center;\"\u003e\n\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 8px;\"\u003e\u003cspan style=\"font-size: 13px; opacity: 0.8; color: #ffffff; line-height: 1.2;\"\u003e\u003cspan style=\"color: rgb(15, 0, 0);\"\u003e \u003c\/span\u003edays. No freight charges at checkout. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(189, 5, 5);\"\u003e\u003cem\u003eAmplifier, power wire, and RCA cables not included\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eShipping is included in the price. No freight charges at checkout — what you see is what you pay.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAssembly \u0026amp; Lead Time\u003c\/strong\u003e\u003cbr\u003eProline X enclosures ship assembled to order. Components are CNC-cut and staged in inventory. Once your order is placed, allow 2–5 business days for final assembly, bonding, and finishing before it ships.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Ships\u003c\/strong\u003e\u003cbr\u003eSingle 8\", 10\", and most 12\" enclosures ship UPS Ground. Oversize enclosures, some loaded enclosures, and anything over 160 lbs ship LTL freight on a pallet. If your order ships freight, the carrier will contact you to schedule a delivery window — provide a valid phone number at checkout. Freight delivery is curbside; the driver is not responsible for moving the enclosure past the curb.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspect Before You Sign\u003c\/strong\u003e\u003cbr\u003eFor ground shipments, photograph any exterior box damage before opening. For freight, inspect the pallet while the driver is present. If you see damage, write \"DAMAGED\" on the Bill of Lading before signing. Do not sign a clean receipt for a visibly damaged freight shipment — it closes the damage claim.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReturns\u003c\/strong\u003e\u003cbr\u003eNon-defective returns are subject to a 20% restocking fee and return shipping at buyer's expense. Enclosures that have been drilled into or modified are not eligible for return.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlaska \u0026amp; Hawaii\u003c\/strong\u003e\u003cbr\u003eAdditional charges may apply for shipments outside the contiguous 48 states.\u003c\/p\u003e\n\u003cdiv id=\"shopify-section-template--21933654835289__product-details-tabs\" class=\"shopify-section\"\u003e\n\u003cdiv class=\"m-page-width\"\u003e\n\u003cdiv class=\"m-section__wrapper\"\u003e\n\u003cdiv class=\"m-section__content m-tabs m-tabs--responsive m-scroll-trigger animate--fade-in-up\"\u003e\n\u003cdiv class=\"m-tabs__content m-product-collapsible\"\u003e\n\u003cdiv class=\"m-accordion--item m-tab-content--description m-tab-content open active\" data-block-type=\"description\" data-index=\"0\" style=\"--content-max-height: 556px; opacity: 1;\"\u003e\n\u003cdiv class=\"m-accordion--item-content max-height-set\" style=\"opacity: 1;\"\u003e\n\u003cdiv class=\"m-tab-content__inner\"\u003e\n\u003cdiv class=\"rte\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe Proline X single 12\" SealedSystem pairs the \u003cstrong\u003eProdigy Audio NB2-12 12\" subwoofer\u003c\/strong\u003e with a \u003cstrong\u003eProline X ported wedge enclosure\u003c\/strong\u003e built at our Tennessee facility.  connect your amplifier and it's ready to run.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eEvery panel is CNC-cut from \u003cstrong\u003e3\/4\" Langboard Elite MDF\u003c\/strong\u003e at our Tennessee facility — a mill-certified panel stock with a \u003cstrong\u003e200 psi internal bond rating\u003c\/strong\u003e, \u003cstrong\u003e410,000 psi modulus of elasticity\u003c\/strong\u003e, and \u003cstrong\u003e325 lb face screw holding strength\u003c\/strong\u003e. In a ported enclosure, panel rigidity directly affects port output. Any flex in the cabinet walls bleeds energy away from the port and into the structure — the result is soft, undefined bass at volume. This box does not flex.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eVersion III construction uses \u003cstrong\u003eV-groove combined with dado joinery\u003c\/strong\u003e throughout. Each mating panel is channeled into a mechanical lock before adhesive is applied, increasing glue surface area and eliminating the micro-gaps that develop in standard butt joint construction over time. The terminal cup is \u003cstrong\u003ebuilt in-house at our Tennessee facility\u003c\/strong\u003e — ABS\/Carbon Fiber Composite body, recessed mount, stainless steel hardware, aluminum landing plates, copper ring terminals, and \u003cstrong\u003e12g OFC speaker wire pre-installed\u003c\/strong\u003e. Nothing to source. Nothing to upgrade. It ships ready to wire.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection id=\"shopify-section-template--21933654835289__proline_features_BV9HTU\" class=\"shopify-section section\"\u003e\n\u003cdiv class=\"section-template--21933654835289__proline_features_BV9HTU-padding\"\u003e\n\u003cdiv class=\"proline-features-container-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-features-header-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-features-header-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch2 class=\"proline-features-title-template--21933654835289__proline_features_BV9HTU\"\u003eWhy Proline X?\u003c\/h2\u003e\n\u003cp class=\"proline-features-desc-template--21933654835289__proline_features_BV9HTU\"\u003eMost enclosures are built to a price point. Proline X is built to a spec. Every box starts with published-data MDF, gets CNC-cut to exact internal volume, and is assembled by hand in our Tennessee facility. The difference shows up in the measurements — and in how the box holds up two years into daily use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"proline-features-grid-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-feature-block-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-icon-wrapper-template--21933654835289__proline_features_BV9HTU\"\u003e\u003cimg src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/milling-machine.png?v=1768578153\u0026amp;width=200\" loading=\"lazy\" width=\"50\" height=\"50\" alt=\"CNC-Cut to Spec\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-text-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch3 class=\"proline-feature-heading-template--21933654835289__proline_features_BV9HTU\"\u003eCNC-Cut to Spec\u003c\/h3\u003e\n\u003cp class=\"proline-feature-body-template--21933654835289__proline_features_BV9HTU\"\u003ePanels are machine-cut on ShopSabre CNC routers and joined with V-groove and dado joinery. Consistent geometry, no hand-cut variance, no gaps at the joints.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-block-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-icon-wrapper-template--21933654835289__proline_features_BV9HTU\"\u003e\u003cimg src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/united-states-of-america.png?v=1768578060\u0026amp;width=200\" loading=\"lazy\" width=\"50\" height=\"50\" alt=\"Handcrafted in USA\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-text-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch3 class=\"proline-feature-heading-template--21933654835289__proline_features_BV9HTU\"\u003eHandcrafted in USA\u003c\/h3\u003e\n\u003cp class=\"proline-feature-body-template--21933654835289__proline_features_BV9HTU\"\u003eHand-assembled at our facility in Tullahoma, TN. Every enclosure is inspected before it ships.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-block-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003cdiv class=\"proline-icon-wrapper-template--21933654835289__proline_features_BV9HTU\"\u003e\u003cimg src=\"https:\/\/audiointensity.com\/cdn\/shop\/files\/maintenance.png?v=1768578255\u0026amp;width=200\" loading=\"lazy\" width=\"50\" height=\"50\" alt=\"Tuned to the Build\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"proline-feature-text-template--21933654835289__proline_features_BV9HTU\"\u003e\n\u003ch3 class=\"proline-feature-heading-template--21933654835289__proline_features_BV9HTU\"\u003eTuned to the Build\u003c\/h3\u003e\n\u003cp class=\"proline-feature-body-template--21933654835289__proline_features_BV9HTU\"\u003eInternal volume and port geometry are calculated to spec and CNC-cut to exact dimensions. The box performs the same way every time.\u003c\/p\u003e\n\u003ch3\u003eBuilt From a Spec Sheet, Not a Sales Sheet\u003c\/h3\u003e\n\u003cdiv class=\"ai-card-divider\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003eEvery Proline X Performance Series enclosure is CNC-cut from \u003cstrong\u003eLangboard Elite MDF — 3\/4\" (18mm) panels\u003c\/strong\u003e produced to published mill specifications. Most enclosure manufacturers source generic MDF without published data. We can tell you the internal bond rating, the modulus of elasticity, the modulus of rupture, and the face and edge screw holding strength for every panel in this enclosure — because we chose the material based on those numbers, not on price or availability.\u003c\/p\u003e\n\u003cp\u003eLangboard Elite is produced in the United States. The specifications below are pulled directly from Langboard's published mill data and are verifiable. This is the same panel stock used in our full Proline X lineup.\u003c\/p\u003e\n\u003cdiv class=\"ai-mat-table-wrap\" style=\"text-align: left;\"\u003e\n\u003cp class=\"ai-mat-footer-note\"\u003eSpecifications are published mill data from Langboard. All values are for 3\/4\" (18mm) panels at standard conditions. Actual performance is subject to manufacturing tolerances.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why\"\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eInternal Bond\u003c\/span\u003e\n\u003ch4\u003e200 psi — The Number That Actually Matters for Enclosures\u003c\/h4\u003e\n\u003cp\u003eThe internal bond rating measures how well the MDF panel resists delamination under sustained pressure applied perpendicular to the face. In a subwoofer enclosure, every bass transient generates a pressure pulse that pushes outward on every panel simultaneously. A panel that begins to delaminate internally loses stiffness gradually — the symptoms are slow: a box that starts to sound softer, less defined, less punchy over months of use. \u003cstrong\u003e200 psi internal bond\u003c\/strong\u003e is the spec that determines how long this enclosure holds its acoustic integrity under daily use at real power levels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eStiffness\u003c\/span\u003e\n\u003ch4\u003e410,000 psi MOE — Less Flex, Less Resonance\u003c\/h4\u003e\n\u003cp\u003eThe modulus of elasticity measures panel stiffness — resistance to bending under load. A stiffer panel flexes less under the pressure generated by a high-excursion driver at volume. Panel flex is a source of acoustic coloration: the panel itself begins to radiate sound at its own resonant frequency, adding distortion to the output. \u003cstrong\u003e410,000 psi stiffness\u003c\/strong\u003e combined with V-groove and dado joinery means the panels stay rigid and the bracing controls resonance at the structure level — not the panel level. The bass you hear comes from the driver, not the box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eScrew Holding\u003c\/span\u003e\n\u003ch4\u003e325 lb Face \/ 250 lb Edge — Joints That Stay Locked\u003c\/h4\u003e\n\u003cp\u003eScrew holding strength determines how firmly the panel grips a fastener at the face and at the edge. This matters most at the baffle joint — where the front panel meets the side panels and where the driver is mounted. A panel with low screw holding strength allows fasteners to loosen over time under vibration, leading to air gaps at the joint and loss of acoustic seal. \u003cstrong\u003e325 lb face screw holding strength\u003c\/strong\u003e means the baffle hardware stays put. Combined with dado joinery and adhesive, the front panel on a Proline X Performance Series enclosure is not going anywhere.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ai-mat-why-card\"\u003e\n\u003cspan class=\"ai-card-label\"\u003eSourcing\u003c\/span\u003e\n\u003ch4\u003eNamed Panel Stock — Not \"Premium MDF\"\u003c\/h4\u003e\n\u003cp\u003ethe phrase \"premium MDF\" or \"high-density MDF\" appears on marketing copy for enclosures across every price point, from $40 to $400. It is not a specification — it is a description with no defined standard. \u003cstrong\u003eLangboard Elite\u003c\/strong\u003e is a named, sourced, mill-documented product with published data. We name it in our copy because naming it holds us accountable to the spec. You can look up Langboard Elite independently, verify the numbers on this page, and confirm you are getting what we say you are getting. That is the point.\u003c\/p\u003e\n\u003cp\u003eThe NB3 Series of woofers offer a ultra shallow depth for working well under and behind truck seats as well as other tight spaces. The 12” version, for example, is only 3.375” deep. These are designed to optimally perform in extremely small enclosures and in most truck prefab enclosures. Housed inside of a rugged metal basket, you will find an oversized 80 Ounce ferrite magnet that uses a 3.0\" voice coil with the ability to withstand temperatures up to 500f and has a FEA designed center pole vent for removing the heat btu’s from the motor and voice coil gap. The spiders are made of a high-quality Cotton and Nomex blend with stitched in flat tinsel leads. This woofer is a work horse and really shines in small, sealed or ported enclosures.\u003c\/p\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRMS Power 800 Watts on 12\"\u003c\/li\u003e\n\u003cli\u003e10” and 12” Sizes\u003c\/li\u003e\n\u003cli\u003eXmax of 11mm one way at 70% BL\u003c\/li\u003e\n\u003cli\u003eHigh temperature 4 layer copper voice coil\u003c\/li\u003e\n\u003cli\u003eBlack aluminum 3.0” voice coil former\u003c\/li\u003e\n\u003cli\u003eDual 4 ohm coil Treated paper cone with rubber surround\u003c\/li\u003e\n\u003cli\u003eCenter pole vent optimized for moving BTU’s\u003c\/li\u003e\n\u003cli\u003eStrong steel frame with logos\u003c\/li\u003e\n\u003cli\u003eQuality chrome push terminals\u003c\/li\u003e\n\u003cli\u003eFlat stitched tinsel leads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\n\u003ctable border=\"0\" width=\"300\" cellspacing=\"10\" cellpadding=\"10\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"25%\"\u003e \u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\" width=\"60\"\u003eNB3-12d4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRE\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e6.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFS\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e36.200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVAS\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e29.665\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQes\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e0.618\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQms\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e2.266\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQts\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e0.485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBL\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e23.96\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMms (g)\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e189.22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCms\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e73.668\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSens\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e88.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXmax\u003c\/td\u003e\n\u003ctd align=\"LEFT\" valign=\"BOTTOM\"\u003e11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e \u003c\/h3\u003e\n\u003ch3\u003eCut Outs \u0026amp; Sizes\u003c\/h3\u003e\n\u003ctable style=\"height: 116px;\" border=\"0\" width=\"443\" cellspacing=\"0\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"91\"\u003e \u003ccol width=\"83\"\u003e \u003ccol width=\"64\"\u003e \u003ccol width=\"65\"\u003e \u003ccol width=\"68\"\u003e \u003ccol width=\"68\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 94.8625px;\" align=\"LEFT\" valign=\"BOTTOM\" height=\"19\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"width: 79.9px;\" align=\"CENTER\" valign=\"BOTTOM\"\u003eNB3-12d4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 94.8625px;\" align=\"LEFT\" valign=\"BOTTOM\" height=\"19\"\u003eDepth\u003c\/td\u003e\n\u003ctd style=\"width: 79.9px;\" align=\"CENTER\" valign=\"BOTTOM\"\u003e3.375\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 94.8625px;\" align=\"LEFT\" valign=\"BOTTOM\" height=\"19\"\u003eCutout\u003c\/td\u003e\n\u003ctd style=\"width: 79.9px;\" align=\"CENTER\" valign=\"BOTTOM\"\u003e10.625\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 94.8625px;\" align=\"LEFT\" valign=\"BOTTOM\" height=\"19\"\u003eOverall Dia.\u003c\/td\u003e\n\u003ctd style=\"width: 79.9px;\" align=\"CENTER\" valign=\"BOTTOM\"\u003e12.250\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 94.8625px;\" align=\"LEFT\" valign=\"BOTTOM\" height=\"19\"\u003eDisplacement\u003c\/td\u003e\n\u003ctd style=\"width: 79.9px;\" align=\"CENTER\" valign=\"BOTTOM\"\u003e0.13 ft3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 94.8625px;\"\u003eSealed Enclosure\u003c\/td\u003e\n\u003ctd style=\"width: 79.9px;\"\u003e0.75 ft3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Prodigy Audio","offers":[{"title":"Default Title","offer_id":63510410559857,"sku":null,"price":389.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/files\/proline-x-sealed-10-enclosure-loaded-with-prodigy-audio-nb3subwoofer-enclosuresproline-x-2701125.jpg?v=1777123408"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3341\/7329\/collections\/Proline_X_header_no_text_2000_400_af136472-847c-43b4-bf9f-c05243d603c3.jpg?v=1776532533","url":"https:\/\/davillecustoms.com\/collections\/proline-x.oembed","provider":"Daville Customs","version":"1.0","type":"link"}