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Amazon.com: ELAC 3000 Series 10 Inch 400 Watt Subwoofer with Auto Room EQ : Electronics
Amazon.com: 8-Inch Low-Profile Amplified Subwoofer System - 600 Watt Compact Enclosed Active Underseat Car Audio Subwoofer with Built in Amp, Powered Car Subwoofer w/Low & High Level Inputs - Pyle PLBX8A :
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Amazon.com: Kenwood KSC-PSW8 250W Max (150W RMS) Single 8" Under Seat Powered Subwoofer Enclosure W/Remote Control : Electronics
