Product Description 8ohm/channel: 250W× 2 4ohm/channel: 300W× 2 Center: 200W Frequency response 20Hz-20KHz Input sensitivity MIC<6mv Signal to noise ratio>90dB Crosstalk >70dB Damping factor>500W Slew rate >9V/us Dimension(mm): 435× 358× 132 Weight: 10.7kg