Alpine SWS-1223D 12 Type S Series Subwoofer (2? 2? (EA) - video Dailymotion
ALPINE SWS-1242D 12" Dual 4 ohm Type-S Series Car Subwoofer. Tested works. Used | eBay
Alpine Charger Single 12-Inch Alpine Halo S-Series Preloaded Subwoofer Enclosure with ProLink S-SB12V (Universal; Some Adaptation May Be Required) - Free Shipping
Alpine S-SB10V | Pacific Stereo
Alpine S2-W12D4 at Onlinecarstereo.com
Universal Fit Alpine S-W12D2 Type S Triple 12" Subwoofer Loaded Sub Box New 793276242150 | eBay
Alpine Pair of S-W12D2 12 Inch S-Series Subwoofers with Dual 2-Ohm Voice Coils
Alpine S-W12D2 1800W Max (600W RMS) 12" Type-S Series Dual 2 ohm Car Subwoofer | Reverb
Alpine 12-Inch Dual 4-Ohm Mobile Subwoofer - S2W12D4 | Abt
Alpine 12-Inch Dual 2-Ohm Mobile Subwoofer - S2W12D2 | Abt
Best Buy: Alpine S-Series 12" Dual-Voice-Coil 4-ohm Subwoofer Black S-W12D4