Alpine Jeep Wrangler Single 12-Inch Alpine Halo R-Series Preloaded Subwoofer Enclosure with ProLink R2-SB12V (Universal; Some Adaptation May Be Required) - Free Shipping
Alpine R-W10D4 10 inch 750W Car Subwoofer 793276040527 | eBay
Alpine SWR-1042D Type R10” Subwoofer with Dual 4-ohm Voice Coils (Used). | eBay
Alpine R2-SB12V Single Type R2 12-in Subwoofer in Vented Enclosure - Creative Audio
Alpine 10” Type-R Thin Powered Sealed Bass Package Includes one Alpine SWR-T10 10” thin subwoofer, one R-A75M amplifier, and sealed enclosure
2) Alpine R2-W10D2 10" Type-R 750w Car Audio Subwoofers+Vented Sub Box Enclosure - Rockville Audio
Alpine Type-R 10" Dual-Voice-Coil 2-Ohm Subwoofer Black SWR-10D2 - Best Buy
Alpine SWR-1542D Type-R 15" subwoofer with dual 4-ohm voice coils at Crutchfield
Alpine SWR-1042D Type-R 10" subwoofer with dual 4-ohm voice coils at Crutchfield
Alpine SWR-1042D Type R10” Subwoofer with Dual 4-ohm Voice Coils (Used). | eBay
Alpine SWR-1042D Type-R 10" subwoofer with dual 4-ohm voice coils at Crutchfield