Amazon.com: Kenwood KFC-W120SVC Road Series 12" Passive Car Subwoofer - 1000W, 36Hz-300Hz Frequency Range, 4-Ohm Impedance, Polypropylene Woofer Cone, Deep, Powerful Bass : Electronics
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Amazon.com: Pyle 6.5 Inch Mid Bass Woofer Sound Speaker System - Pro Loud Range Audio 300 Watt Peak Power w/ 4 Ohm Impedance and 60-20KHz Frequency Response for Car Component Stereo PLG64,Yellow : Electronics
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