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Amazon.com: Alpine S-W12D4 Car Audio Type S Dual 4 Ohm 1200 Watt 12" Subwoofers with Sub Install Kit Package : Electronics
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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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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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Amazon.com: Alpine S-W12D4 Car Audio Type S Dual 4 Ohm 1200 Watt 12" Subwoofers with Sub Install Kit Package : Electronics
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Alpine Subwoofer Package - Two S-W12D2 S-Series 12" Dual 2-Ohm Subwoofers : Electronics - Amazon.com
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