4 channel amplifier power output at 4 ohms 1 000 watt output power per channel at 4 ohm 140 watt rms power per channel at 4 ohm 70 watt output power per channel at 2 ohm 250 watt rms power per channel at 2 ohm 125 watt series crunch gpx frequency response 5 50000 hz signal to noise ratio 100 db distortion factor 0 05 input impedance 20 kohm fuse 2 x 20 a dimensions 254 x 46 x 326 mm