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Amazon.com: Pair of Gravity G3 12 Inch 4000 Watt Package Car Audio Subwoofer w/ 4 Ohm DVC Power (2 Woofers) : Electronics
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QP15-Super - Subwoofer Super Deluxe da 15", 4000 Watt, DVC Car Audio Sub | QP15-Super : Amazon.it: Elettronica
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