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Amazon.com: BOSS Audio Systems D10F Phantom Series 10 Inch Car Subwoofer - 800 Watts Max, Single 4 Ohm Voice Coil, Sold Individually, Hook Up To Amp : Electronics
Amazon.com: Rockville RV208P Dual 8" 800w Car Audio Subwoofers in Vented Sub Enclosure Box,Black : Automotive
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Amazon.com: Planet Audio PL10S Pulse Series 10 Inch Car Subwoofer - 800 Watts Max, Single 4 Ohm Voice Coil, Sold Individually, for Truck, Boxes and Enclosures, Use with Amplifier : Electronics
Amazon.com: American Bass TITAN1544 15 Woofer 800w Rms/1600w Max Dual 4 Ohm Voice Coils : Electronics