It's a TDA2030A 2.1 Stereo Audio Amp 2 Channel Amplifier Subwoofer Amplifier Board ,Operating voltage: Dual AC 12V (AC 12V-0-12V,Maximum output power: left and right channels 18Wx2, subwoofer 36Wx1.Very easy to connect,and enjoy diy fun.
Amplifier circuit use 4 TDA2030A. 2 TDA2030A is responsible for the left
and right channels. the other 2 TDA2030A is connected to BTL circuit
for the subwoofer.
Please pay attention to the Heat Sink
Potentiometer From left to right as follows:
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