TDA2050 + TDA2030 2.1 Three-Channel Subwoofer Amplifier Board Finished Board 60W

Product Features Amplifier module TDA2050 + TDA2030 2.1 Three-channel subwoofer amplifier board finished board 60W High-performance TDA2050A + TDA2030A + NE5532 three-channel (2.1) subwoofer amplifier board board, the output power: 18W 18W left and right channels, subwoofer 32W, LM1875 compatible. Equipped with 12V decoder board power output and decoder board audio input (the actual wiring decoder board audio input to ground GND is not grounded to reduce interference) using the original chip: TDA2050 default woofer - output peak 32W, dual-channel unit is two TDA2030 - Output peak 18W + 18W. TDA2030, TDA2050, LM1875 can be completely interchangeable, if all replaced by TDA2050 or LM1875, replace the larger radiator. The amplifier chip has five pins: positive supply, negative supply, positive input, negative input and output. When the chip heat sink is connected with the negative pole, the chip heat sink should not be short-circuited when the power supply is working, otherwise it will be burned immediately. The figure is the circuit board wiring diagram, carefully control the wiring