Sundown Audio NS6 V.6 18" D1
The Nightshade 3,000-watt Neodymium sub is engineered to deliver incredibly powerful low end, with an extremely linear excursion and next-level thermal management. It features an eight-layer voice coil for excellent power handling and an extended shorting ring to minimize distortion and deliver a smooth, highly accurate sound at extreme SPL levels.
Thermal control is optimized with a cast aluminum cooling ring, outer fin array and aluminum vent ring to actively pull heat away from the entire voice coil gap. The subwoofer also incorporates a unique air exchange system for active cooling, enhancing reliability during extended use. With a Mega Roll V2 surround for linear cone movement and class-leading Xmax, the Nightshade is the premier high-performance Neodymium subwoofer in the category.
 
Product Details:
18" 1 ohm Nightshade (NS) Series Subwoofer
Power Handling:
RMS: 3000 watts
Mega Roll V2 surround
Custom-tooled basket and ultra-linear spider packs
Extended cast aluminum shorting ring
Unique air exchange system with aluminum vent ring
Eight-layer dual voice coil
35 mm Xmax
Double Stacked Neodymium magnet motor structure
Resonance Frequency (Fs): 28.63 Hz
Sensitivity: 87.47 dB
Recommended ported box volume: 7 cubic feet
Top-mount depth: 16.3"
Cutout diameter: 16.69"
T/S SPECS
NS V.6 18″ D1
NS V.6 18″ D2
 
RE (Ohms)
1.8090
3.6629
FS (Hz)
28.6283
28.3677
VAS (L)
78.9335
82.9318
Qes
0.4955
0.4948
Qms
5.2141
5.1127
Qts
0.4525
0.4511
Le (mH)
1.7089
3.3898
BL (NA)
21.7903
30.4106
Mms (Grams)
722.9906
700.8333
Cms (uM/N)
42.7481
44.9135
Sens (dB @ 1w/1m)
87.4738
87.5755
Xmax
35mm
35mm
T/S SPECS
NS V.6 18″ D1
NS V.6 18″ D2
 
 
Sealed Enclosure
Not Recommended
Ported Enclosure
7 cu.ft. net
Recommended Tuning
32Hz
Recommended Port Area
100 sq.in.
Displacement
.27 cu. ft. 
Depth
16.30"
Outside Diameter
18.62"
Cut-Out
16.69"
Physical Dimensions
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