Number of Channels: 4Frequency Response: 20HZ-20KHZ2 Ohm RMS Power (14.4V) Per Channel: 500Watts x 4ch4 Ohm RMS Power (14.4V) Per Channel: 250Watts x 4ch4 Ohm RMS Power Brdge (14.4V) Per Channel:1000Watts x 2chInput Senstvty: 0.2V – 5VLow Pass Flter: 40Hz-400HzHgh Pass Flter: 40Hz-400HzFuse Sz..