XH-M139 TPA3116D2 2*50W+100W 2.1 Channel Digital Power Amplifier Board 12V-24V Wide Voltage TPA3116D2 amplifier board

XH-M139 TPA3116D2 2*50W+100W 2.1 Channel Digital Power Amplifier Board 12V-24V Wide Voltage TPA3116D2 amplifier board