400W max rated Cooling fan Protection against short circuit overheating & clipping Soft start prevents damage to speakers Independent level controls for each channel 1 LED per channel for over load indication clip 2U case for rack mounting if required A stereo power amplifier rated at 400W. It offers performance suitable for most small-to-medium venues when coupled with a pair of suitable speakers such as the Pro Sound 200W 10 inch Loudspeakers L87AC.