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S600X 2.1 Channel Bluetooth Amplifier Board, Dual TPA3255 300W×2 + 600W Subwoofer Output, DC 19-51V Class D Audio Amp with AUX/USB/USB Sound Card Input for DIY Speaker with External Antenna
SAR 345
2PCS TW100U 100W Mono Amplifier Board, TPA3116D2 Digital Power Amp Module with Built-in Step-up Voltage Circuit (19V/24V), Supports TWS Wireless Pairing, Bluetooth 5.3, AUX, USB Input, DC 12-24V
SAR 172
