2 x 30W DSP Digital Audio Amplifier Board - TSA3120A TSA8800D just click S2 to set

just click S2 to set new board to receiver mode then double click S2 on the master board

The TSA1453B is a complete audio digital signal processing module

Power up another TSA2300

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2 x 30W DSP Digital Audio Amplifier Board - TSA3120A TSA8800D just click S2 to setTSA3120A is a 2x30W digital audio amplifier board. It has a digital Input, Closed Loop Class D Amplifier chip TSA5756M and each channel has maximum 30W power output. Both of channels are capable of outputting nominal power simultaneously and continuously. This board can be powered by any DC12V 24V power supply. it can be used to drive any 4 or 8 passive speakers. The highlight point is ADAU1701 DSP chip on board. It has a default DSP program loaded.