SWR-12D4 | 2250W Peak 12" Series Dual 4-Ohm Car Sub | Alpine
Alpine SBR-S12D4 Type-R 12" Subwoofer Enclosure - Signature Car Sound
Alpine SWR-1222D Type-R 12" subwoofer with dual 2-ohm voice coils at Crutchfield
Alpine SWR-1242D Type-R 12" subwoofer with dual 4-ohm voice coils at Crutchfield
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)
Alpine SWR-1221D (swr1221d) 12" Car Subwoofers - Sonic Electronix
Alpine SWR-1242D (SWR1242D) 12" Dual 4 ohm Type-R Car Subwoofer
Pair Alpine SWR-1542D Type R 15" 4000 Watt DVC 4 Ohm Car Audio Subwoofers Subs - Walmart.com
Alpine Type R 12s old school first generation one pair for Sale - Celebrity Cars Blog