Alpine R-W12D2 12 inch 750W Car Subwoofer for sale online | eBay
Alpine RS-W10D2 | Pacific Stereo
Alpine SWR-1242D Type-R 12" subwoofer with dual 4-ohm voice coils at Crutchfield
Alpine R-W12D2 12" Dual 2 OHM Type-R 2250W Pro Loud Subwoofer Speaker Sub - Walmart.com
ALPINE R-W12D4 Car Subwoofer - DriveStylish
Amazon.com: Alpine ALP19-R-W12D2x2wKit Car Audio Type R Dual 2 Ohm 1500 Watt 12" Subwoofers with Sub Install Kit and HA-SWKD Dual Sub Box Install Kit - 16 Screws and Speaker Wire with
Amazon.com: Alpine ALP19-R-W12D4 Car Audio Type R Series Sub Dual 4 Ohm 1500W Peak 12" Subwoofer : Electronics
Alpine 12” Type R-Series Powered Ported Bass Package Includes one Alpine R-W12D4 12” subwoofer, R-A75M amplifier, and 2.25 ft³ optimized ported enclosure
SWR-12D2 - Alpine 12" Dual 4-Ohm Type-R Series Subwoofer