Alpine SWR-8D4

Product highlights:
8" subwoofer with dual 4-ohm voice coils
Kevlar reinforced pulp cone with HAMR Santoprene rubber surround
frequency response: 30-200 Hz
power handling: 150-350 watts RMS (175 watts per coil)
peak power: 1,000 watts
sensitivity: 83.5 dB
top-mount depth: 4-1/2"
sealed box volume: 0.15-0.50 cu. ft.
ported box volume: 0.25-0.70 cu. ft.
grille not included
warranty: 1 year
Our 60-day money-back guarantee
MFR # SWR-8D4
What's in the box:
Alpine SWR-8D4 owner's manual

One 8" Dual 4-ohm voice coil subwoofer
1 Rubber concealing ring (installed)
Two 4.5" jumper cables (each cable has a single banana connector on each end)
Type-R Subwoofer application guide (English/ French)
On-line product registration information (English/ French/ Spanish)
Warranty information (English/ French)
Important Notice (English /French)