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MTX Magnum MB210SP 800w Dual 10” Subwoofers+Vented Sub Box/Amp Package+Amp Kit
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Amazon.com: BOSS Audio Systems CUBE8 Car Subwoofer and Amp Package – Built-in Amplifier, 8 Inch Subwoofer with Passive Radiator, Remote Subwoofer Control : Electronics
Amazon.com: ALPHASONIK APP122 Complete 1500 Watts Dual 12" Subwoofers Car Bass Package with Amplifier and Installation Kit Included - 2 Sub Woofers with Grills in Custom Ported Box Loaded Enclosure, Black : Electronics