Earthquake Sound - Subzero 12 Subwoofer

Description

These Monster Bass Drivers rule in speed, sound quality, and SPL. Armed with a U.S. made massive 3.25” aluminum voice coil former with a flat wire wrapped edge wound style, it easily uses 1000 Watts RMS.

The SubZero also boasts its TCT (Turbine Cooled Transducer) coil and pole cooling technology, plus the PSP Terminal block that allows stereo and mono impedance changes just by flipping fuses. You can now have the perfect combination of looks, performance, reliability, longevity, and ease of installation. The SubZero from Earthquake Sound.
Product Features

    Flat or concave dust cap for additional rigidity and stiffness that does not flex.
    Poly-Ether draw SWE (Super Wide Edge) suspension for high strength, flexibility, and ultra-long excursion without mechanical breakup.
    Dual Nomex / Romex super spider with composite center and symmetric stitched tinsel leads.
    TCT (Turbine Cooled Transducer) technology prevents heat-derived compression and keeps the woofer at maximum efficiency.
    Octo helix voice coil for perfect electromagnetic coupling, identical thermal signature, lower distortion, higher performance, and durability.
    Double-stacked cobalt-ceramic high Gauss magnet system.
    Diamond-cut chassis with XLT geometry for rigidity and extra length between the spider and magnetic gap.
    Patented PSP (Parallel Series Parallel) terminal system.

    With a simple flip of a fuse, the voice coil can be configured in series or parallel to match the amplifier in use.

Specifications

    Woofer Size: 12″
    Power Handling: 1000 WRMS / 2000W MAX
    Impedance: Dual 4-Ohm
    2.5″ diameter voice coil
    Sensitivity: 85.9dB

Parameters

    REVC = 7.7 Ohm
    LEVC = 1.34777 mH
    Fo = 26.8 Hz
    Sd = 53.093 msqM
    BL = 26.7542 TM
    Qms = 10.8730
    Qes = 0.4411
    Qts = 0.4239
    SPLo = 85.8761dB
    No = 0.2431%
    Vas = 58.1 M
    Mechanical Xmax = 3.5″ / 88.9mm peak to peak
    Electrical Xmax = 2″ / 50.8mm peak to peak
    Cms = 144.8275 uM/N
    Mms = 243.509g
    Mmd = 236.49g