Tuning range: FM, MW Power output: 80 watts per channel into 8Ω (stereo) Surround output: 80W (front), 80W (center), 80W (rear) Frequency response: 20Hz to 20kHz Total harmonic distortion: 0.025% Damping factor: 160 Input sensitivity: 2.5mV (MM), 150mV (line) Signal to noise ratio: 86dB (MM), 96dB (line) Channel separation: 55dB (MM), 45dB (line) Output: 150mV (line), 2.6V (Pre out) Speaker load impedance: 4Ω (minimum) Digital inputs: coaxial, optical Video Connections: composite, S-video Dimensions: 435 x 171 x 391mm Weight: 13.8kg A+B Speakers ( four main speakers can be connected ) Bass extension Subwoofer out