* 4 MIC inputs and volume adjustable independently * Two equalizers for control * High,middle,low of the tone and echo effect adjustable * Output power(RMS):100W*2 (4 ohms) Frequency Response:20Hz-20KHz±3 dB * Sensitivity:100 mV * S/N Ration:e65dB * T.H.D.: d 0.1% (1KHz) Dimensions:430(W) X 320(D) X(H)mm