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Bluetooth 30W+30W+60W (Bass) Amplifier using TPA3118 Audio Amplifier stereo Board - YouTube
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1 x 200W Bluetooth+DSP Mono Amplifier Board - TSA7550B(Apt-X)
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2.1 Channel Bluetooth Amplifier DIY HiFi CD MP3 Radio Car Home Audio Stereo Bass Speaker Amplifier Board Booster DC12V 1A~5A | Wish
Bluetooth 5.0 100W+100W Subwoofer Amplifier Board 2.1 Channel Class D Home Audio Stereo Equalizer Amp XY-T100L - Walmart.com
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2*50W+100W Power Subwoofer Bluetooth Amplifier Board Sound Class D Home Theater Audio Stereo Equalizer AUX Amp