Autotek MW12D2 - 1200W 12" Dual 2-Ohm Mean Machine Series Component Subwoofer Driver at OcsDeals.com
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Amazon.com: Planet Audio AC12D Car Subwoofer - 1800 Watts Maximum Power, 12 Inch, Dual 4 Ohm Voice Coil, Sold Individually : Electronics
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Two 8 in. 1600-Watt Dual Voice Coil 4-Ohm Car Audio Subwoofers Speakers 2 x PLPW8D - The Home Depot
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BOSS Audio Systems D10F Phantom Series 10 Inch Car Audio Subwoofer - 800 Watts Max, Single 4 Ohm Voice Coil, Sold Individually, For Truck, Boxes and Enclosures, Use With Amplifier - Walmart.com