Alpine SWR-1042D Type-R 10" subwoofer with dual 4-ohm voice coils at Crutchfield
Alpine SWR-12D2 Type-R 12" subwoofer with dual 2-ohm voice coils at Crutchfield
Alpine SWR-1241D (swr1241d) 12" Car Subwoofers - Sonic Electronix
ALPINE TYPE R 12 inches 2OHM R-W12D2 on Mercari | 12 inch subwoofer, Alpine, Type
Alpine Type-R 12" Subwoofer | P.C. Richard & Son
FS: Alpine Type R 12" sub + JBL BP300.2 mono amp - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
Amazon.com: Alpine Type R 2 12" Custom Ported/Vented Sub Box Subwoofer Enclosure 32hz : Electronics
Alpine R-W12D4 R-Series 12" subwoofer with dual 4-ohm voice coils at Crutchfield