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12V 150W Black Powerful Bass Subwoofer Auto Car Audio High Power Amplifier Board | eBay
Kicker 11HS8 8" 150W Hideaway Car Audio Powered Subwoofer Sub Enclosur - Showtime Electronics
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Klipsch Reference Series 10" 150W Powered Subwoofer Black R-101SW II 1070404 - Best Buy
Atlas Sound TSW12 Single 12" Powered Subwoofer 150W RMS - Sole Source AV Supply