This is the XH-M543 digital power amplifier board which is run by the TPA3116D2 chip.
Parameter Value
Model XH--M543
Chip type TPA3116D2*1
Output voltage DC12-26V (recommended use is 24V)
Output power Max 2*120W
Signal to noise ratio 100dB
Vocal tract number Dual channel
Dimensions Approx. 92*68*17mm.
Characteristics:
1. Before the preset level of operational amplifier.
2. TPA3116D2 amplifier chip.
3. Efficient array radiator heat dissipation
4. Chip inductor
5. Military grade PCB
Instructions:
1. Power supply: use DC 12-26V voltage power supply (recommend using 24V)
2. Audio input: small 3P terminal input and about 30 cm dedicated audio terminal line. Easy to use.
3. Power output: please connect the speaker to the OUT output of the board. Pay attention to positive and negative poles! 4-ohm speakers are recommended.
4. Volume adjustment: the potentiometer on both sides of the audio input terminal corresponds to the left and right sound tracks respectively. Rotate the volume with a screwdriver.