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Kicker 46CXA8001T Mono Sub Amplifier w/ M10AK4B Sub & Amp Wiring & Hardware Kit
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Amazon.com: Fosi Audio M03 Subwoofer Amplifier 200 Watt Mini Mono Audio Amp and P1 Tube Pre-Amplifier : Electronics
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G2 Subwoofer Power Amplifier Mini Mono SUB Amp 100W PBTL BTL Bridge Home Theater | eBay