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Amazon.com: Acoustic Audio WS1005 Passive Subwoofer Amp 200 Watt Amplifier for Home Theater : Electronics
Amazon.com: Fosi Audio M03 200 Watt TPA3255 Subwoofer Amplifier Mini Mono Channel Audio Power Amp for Home Theater Full-Frequency and SUB Bass Switchable with 32V/5A Power Supply : Electronics
Acoustic Audio WS1005 Passive Subwoofer Amp 200 Watt Amplifier for Home Theater Pro Sound - Newegg.com
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200W Home Audio Subwoofer Power Amplifier Amp Class D Crossover & Phase Control | eBay
Sundown Audio SDX-200.2 (SDX Series) Car Amplifier 2 Channel 200 Watts RMS x 2Ch
Monoprice SWA-200 Subwoofer Amp - Black - 200 watt with Crossover, Phase Control, Cool Class D Amps - Walmart.com