Rockville W15K9D2 15" 5000w Car Audio Subwoofer Dual 2-Ohm Sub CEA Compliant
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Sundown Audio SA 6.5" inch DVC Dual 2 Ohm (SA Series) Car Subwoofer 200 Watts RMS
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V154DV2 - 15 Inch Dual 4-ohm High-Performance 550W RMS / 1500W MAX Power Handling Subwoofer - Cerwin Vega
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PRECISION POWER AW.10D2 ATOM SUB 10" 1000W DUAL 2-OHM SUBWOOFER BASS SPEAKER NEW | eBay