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Alpine Type-R 12" 1000W Subwoofer Black SWR-12D4 - Best Buy
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Alpine 12 Inch Type-S Subwoofer (SWS-12D2/D4) | SK Customs Car Audio & Home Theater | Atlanta | Norcross | Duluth | John's Creek
Alpine® Type R 12" Black Car Subwoofer | Hi-Fi Systems
Best Buy: Alpine Type-S 12" Dual Voice Coil 2-Ohm Subwoofer Black SWS-12D2
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Alpine SWS-1223D Type-S 12" subwoofer with dual 2-ohm voice coils at Crutchfield
