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Amazon.com: AudioPipe TXX-BDC4-12 Dual 4 Ohm 12 inch 2,200 Watt Car Speaker Subwoofer (2 Pack) Bundle with QPower QBOMB12TB Dual 12 Inch Triangle Ported Car Audio Subwoofer Box Enclosure with Bedliner Spray
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Amazon.com: Q Power Dual 10 Inch Triangle Ported Subwoofer Box w/Bedliner Spray (2 Pack) : Electronics
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