TPA3116D2 2.1 Digital Power Amplifier Board 50Wx2+100W Subwoofer
- Power supply: DC12-25V
- Power: 2X50W+100W subwoofer
- Circuit board size: 83x100MM
- Potentiometer function: the left 1 is stereo volume adjustment, the middle is the subwoofer volume adjustment, and the right is the total volume adjustment