BOSS Audio Systems AR120DVC 12 Inch Car Subwoofer - 1600 Watts Maximum Power, Dual 4 Ohm Voice Coil, Sold Individually 12 1600 Watt
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Amazon.com: Pyle 8 Inch 1600 Watt DVC 4 Ohm Car Audio Subwoofer Speaker Set with 40 Oz Magnet and 1.5 Inch 4 Layer Voice Coil, Black (2 Pack) : Electronics