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Amazon.com: Lepai LP-168HA 2.1 2x40W Mini Amplifier + 1x68W Sub Output : Electronics
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Amazon.com: AIYIMA A03 2.1 Channel Class D Amplifier 50W+50W+100W TPA3116 Subwoofer Bluetooth Amp HiFi Power Amplifier with Power Adapter : Electronics
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Amazon.com: Nobsound HiFi 2.1 Channel Bluetooth 5.0 Power Amplifier Board Case Stereo Subwoofer Amp : Electronics
