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Amazon.com: Rockville RW10CA 10" 800 Watt Slim Low Profile Active Powered Car Subwoofer Sub, Black : Electronics
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Amazon.com: Sound Storm Laboratories US8 8 Inch Under Seat Powered Car Audio Subwoofer - 800 Watts Max, Low Profile, Built in Amplifier, for Truck, Boxes and Enclosures, Remote Subwoofer Control : Electronics