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Rockford Fosgate R2SD4-12 12" 1000W 4-Ohm Shallow/Slim Car Subwoofer Sub Pair with Mica-Injected Polypropylene Cone and Integrated PVC Trim Ring : Electronics - Amazon.com
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TS-SW3002S4 - 12" - 500w Max Power, Single 4Ω Voice Coil, Mica-reinforced IMPP woofer- Shallow-Mount Subwoofer | Pioneer Electronics USA
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Amazon.com: PIONEER TS-A3000LS4 12" Shallow-Mount Subwoofer with 1,500 Watts Max. Power : Electronics
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Amazon.com: PIONEER TS-SW3002S4 12" 1,500-Watt Shallow-Mount Subwoofer with Single 4ohm Voice Coil : Electronics
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