150Watts x 4ch @ 4 ohms RMS Output 250Watts x 4ch @ 2 ohms RMS Output 500Watts x 2ch @ 4 ohms Bridged Output Frequency Response: 20-20KHz Signal To Noise Ratio: >95dB -Selectable X-over:LPF/FLAT/HPF LPF/HPF Filter:40Hz-3KHz Low Level Input Range:0.2-5V Leds indicate working status:Power/protection/Clipping Latest Full Range Class-D High Performance Circuit Design Pass Through RCA Tiffany Jack -Input Configuration:2CH / 4CH -Fuse Size:40A x 2