Four Balanced Stereo Audio Inputs - Frequency Response: 20Hz-20Khz - Unit Dimensions: 19""W x 6.88""D x 1.73""H * Eight Un-Balanced XLR Mono Audio Outputs - THD: Less than 0.03% * Allows for Input Level Conforming To Input Signal - Output Line Max output: 6dB * Reduces Electrical Disturbance - Dynamic Range: 118 dB * S/N Ratio: 103dB - Power AC 110/220 V