Amplifier Specifications: Main channel:4ohm/1khz-75w*2 Center channel:6ohm/1khz-100w Rear channel:4ohm/1khz-75w*2 Sub Woofer channel:6ohm/100hz-200w 6CH, DTS. AC-3 .DOLBY DIGITAL Decode. USB:1-999 AM: 522--1620KHz FM: 87.5--108MHz The automatic detection input signal. Establishes the power parameter automatically. Distorts the limit automatically. Parameter memory function. 2 Optical , 1 coaxial inputs. AUX,TV two group analog inputs. The simulated signal input rotatable is DOLBY PROLOGIC2 Outputs Size: 430*340*65MM Net weight: 6 Kg Single plane packing size: 495*405*140MM Gross weight: 7Kg Big packing (a 4 outsourcing) size: 500*420*570MM