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Amazon.com: Rockville WHEEL OF BASS 8" Slim Under-Seat Powered Truck/Car Audio Subwoofer Sub : Everything Else
Amazon.com: Rockville RVB12.1A 12 Inch 500W Active Powered Car Subwoofer+Sub Enclosure Box : Electronics
Amazon.com: Rockville RVL69W 6x9 300w Competition Cast Aluminum Car Subwoofer Mid-Bass+Lows,Black : Electronics
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Amazon.com: Skar Audio SDR-10 D4 10" 1200 Watt Max Power Dual 4 Ohm Car Subwoofer : Electronics
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Amazon.com: CT Sounds TROPO-18-D4 18 Inch Car Subwoofer Dual 4 Ohm, 1300 Watts Max : Everything Else
Amazon.com: Gravity 1x 12 Inch 2000 Watt Car Audio Subwoofer w/ 2 Ohm DVC Power 12 in. Sub - Feature Dual Voice Coil, Thick Magnet, Design for Car, ATV, Van, High Performance Car Show : Electronics
