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Amazon.com: Alpine R-W12D4 Car Audio Type R Series Sub Dual 4 Ohm 2250W Peak 12" Subwoofer and HA-SWKD Dual Subwoofer Sub Box Install Kit : Electronics
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ALPINE SWR-T12 TYPE-R 4-OHMS SHALLOW MOUNT SUBWOOFER 12" 1,800 WATTS 12-INCH SUB 793276601513 | eBay
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