WONDOM 2 X 125W 8 Ohm Class D Audio Amplifier Board - IRS2092 AA-AB32321 Output Power:Each channel is rated at 125W Efficiency:90% @ 125W,8, Class D stage Multiple Protection Features: Over-current protection (OCP), high side and low side MOSFET Over-voltage protection (OVP) Under-voltage protection (UVP), high side and low side MOSFET