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LAB SlapBox+™ x JL Audio 8-Inch "Active" Subwoofer System with Built-In Amplifier in Ported Enclosure Optimized vented box with integrated class D amp & 8" JL Audio W3v3 subwoofer
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Amazon.com: Pyle 8-Inch Low-Profile Amplified Subwoofer System - 600 Watt Compact Enclosed Active Marine Underseat Car Subwoofer with Built in Amp, Powered Car Subwoofer w/Low & High Level Inputs PLMRSBA8 : Electronics
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Pioneer Sealed 12" 1,300-Watt Active Subwoofer with Built-in Amp in the Mobile Audio department at Lowes.com
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