Amazon.com: Alpine R-W10D4, R Series Dual 4 Ohm Voice Coil 2250 Watts Subwoofer, 10" : Alpine: Electronics
Best Buy: Alpine R-Series 10" Single-Voice-Coil 4+4-Ohm Subwoofer Black R-W10D4
Amazon.com: Alpine SWA-10S4 BassLine Series 10" 4-ohm Subwoofer : Electronics
Alpine W10S4 10-inch Single 4 Ohm Subwoofer - Creative Audio
Alpine SWE-1243 Type-E 12" single 4-ohm subwoofer at Crutchfield
Amazon.com: Alpine S-W12D4 Car Audio Type S Dual 4 Ohm 1200 Watt 12" Subwoofers with Sub Install Kit Package : Electronics
Alpine SWT-10S4 at Onlinecarstereo.com
Alpine S-W10D4 S-Series 10" subwoofer with dual 4-ohm voice coils at Crutchfield
Alpine BBX-T600 Amplifier and W10S4 10-inch Single 4 Ohm Subwoofer - Includes wire kit - Creative Audio
Alpine - 8" Single-Voice-Coil 4-Ohm Loaded Subwoofer Enclosure with Integrated 120W Amp - Black - RTBShopper
ALPINE W12S4 BASS SERIES SINGLE 4 OHM VOICE COIL 12" SUBWOOFER - 750W 613815949640 | eBay
Alpine W10S4 BassLine Series 10" 4-ohm subwoofer at Crutchfield
Alpine W10S4, Bass Series Single 4 Ohm Voice Coil 10" Subwoofer - 750W – AVLeaderz
JL Audio 10W0v3-4 | 300 Watt 10" Single 4-Ohm Subwoofer + Amp
Alpine SWE-1242 Type-E 12" 4-ohm subwoofer at Crutchfield
ALPINE W10S4 BASS SERIES 10" 750W PEAK 250W RMS SINGLE 4-OHM SUBWOOFER | eBay
Best Buy: Alpine 12" Single-Voice-Coil 4-Ohm Subwoofer SWE-1242
Amazon.com: Alpine Type R 12 Inch 2250 Watt Max 4 Ohm Round Car Audio Subwoofer %7C R%2DW12D4 : Electronics
Alpine Type S SWS-12D4 12 Inch 1500 Watt Max 4 Ohm Round Car Audio Subwoofer
Best Buy: Alpine 10" Single-Voice-Coil 4-Ohm Subwoofer SWE-10S4
Alpine | S-W12D4
Best Buy: Alpine 10" Single-Voice-Coil 4-Ohm Subwoofer SWE-1042
Aftermarket Alpine SWR-12D4 Subwoofer Recoil Kit - Dual 4 Ohm
Alpine S-W8D4 8 Dual Voice Coil (4 Ohm) High Performance Subwoofers
Alpine S-W12D4 | 1800W Type-S Series Car Subwoofer
Alpine SWA-12S4 BassLine Series 12" 4-ohm subwoofer at Crutchfield
