KingHope AW-12 12 Inch Front-Firing Home Audio Powered Subwoofer,with Mesmerising Deep Bass and Class AB Amplifier,Easy Setup with Home Theater System for Sale in Claremont, CA - OfferUp
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Acoustic Audio PSW600-15 - YouTube
Amazon.com: Acoustic Audio PSW250-6 Home Theater Powered 6.5" LFE Subwoofer Black Front Firing Sub,250 Watts