Alpine SBR-S12D4 Type-R 12" Subwoofer Enclosure - Signature Car Sound
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Alpine SWR-1242D Type-R 12" subwoofer with dual 4-ohm voice coils at Crutchfield
Buy Alpine 2 R-W12D2 Car Audio Type R Series Sub 1500W Peak 12" Subwoofer Bundle with Harmony HA-A800.1 Amplifier & Amp Kit Online in Indonesia. B08CVTZL94
Alpine SWR-1242D (SWR1242D) 12" Dual 4 ohm Type-R Car Subwoofer
Alpine SWR-8D4 Type-R 8" subwoofer with dual 4-ohm voice coils