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Memphis 15-PRX1244 12" 300 Watts RMS Dual 4-Ohm Subwoofer : Electronics - Amazon.com
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Amazon.com: KICKER 43C124 Comp 12" 300 Watt SVC 4-Ohm Car Subwoofer Sub +Amplifier+Amp Kit : Electronics
Amazon.com: Pyramid 6.5 Inch Car Woofer Speaker - 300 Watt High Powered White Injected Polypropylene Cone Car Audio Sound Component Speaker System w/ High-Temperature Kapton Voice Coil, 4 Ohm, 40oz Magnet -
