Total Bridged Power: 4,000 Watts @ 4 OhmsStereo Output (Per Channel):2,000 W RMS @ 2 Ohms1,350 W RMS @ 4 Ohms800 W RMS @ 8 OhmsForm Factor: 2RU (Rack Unit) rugged chassisCooling: Two temperature-dependent variable speed DC fansBuilt-in Protection: Patented DDTTM (Distortion Detection Technique) anti-clipping circuitry, thermal shutdown, and DC voltage protection.