Alpine Type-R SWR-12D4 12" 3000 Watt Dual 4-Ohm Car Audio Subwoofer Sub SWR12D4 | Audio Savings
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 12" Dual 2-ohm Voice Coil Subwoofer at Crutchfield
Alpine SWR-1243D 12" Type-R Car Subwoofer
12" Alpine Type R Subwoofer and Enclosure | Tacoma World
Alpine Type R 12s old school first generation one pair for Sale - Celebrity Cars Blog