WONDOM 2 X 250W 8 Ohm Class D Audio Amplifier Board - IRS2092 AA-AB32291 Output Power:Each channel is rated at 250W Efficiency:90% @ 250W,8, Class D stage Multiple Protection Features: Over-current protection (OCP), high side and low side MOSFET Under-voltage protection (UVP), high side and low side MOSFET Under-voltage protection (UVP),high side and low side MOSFET