Alpine S-W12D4 | 1800W Type-S Series Car Subwoofer
Amazon.com: Universal Car Stereo Rearfire Sealed Dual 12" Alpine S-W12D2 Type S Car Audio Subwoofers Custom Sub Box Enclosure Package New : Electronics
Alpine 8" Powered Subwoofer System Black PWE-S8 - Best Buy
Alpine Type-R 12" Subwoofer | P.C. Richard & Son
Alpine W10S4 BassLine Series 10" 4-ohm subwoofer at Crutchfield
Pair Alpine SWR-1542D Type R 15" 4000 Watt DVC 4 Ohm Car Audio Subwoofers Subs - Walmart.com
Subwoofer
Alpine SWX-1243D Type-X 12" subwoofer with dual 4-ohm voice coils at Crutchfield
Alpine Type R 10 Inch 2250 Watt Max 2 Ohm Round Car Audio Subwoofer (2 Pack) - Walmart.com
Alpine W10S4, 10 Subwoofers : Crazy Stereo Orange County Authorized Car Audio Dealer
Alpine S-W12D4 Car Audio Type S Dual 4 Ohm 1200W 12" Subwoofers with Install Kit 793276242143 | eBay