Alpine Type-R 12" 1000W Subwoofer Black SWR-12D4 - Best Buy
Customer Reviews: Alpine SWR-12D4 Type-R 12" subwoofer with dual 4-ohm voice coils at Crutchfield
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Alpine SWR-1242D Type-R 12" subwoofer with dual 4-ohm voice coils at Crutchfield
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Alpine SWR-1242D Type-R 12" subwoofer with dual 4-ohm voice coils at Crutchfield
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Alpine SWR-1242D Type-R 12" subwoofer with dual 4-ohm voice coils at Crutchfield
Best Buy: Alpine Type-R 12" 1000W Subwoofer Black SWR-12D4
