Power Ouput All channels driven 50 watts x 6/ch (20-20 kHz, 0.03% THD, 8 ohms) 100 watts x 6/ch (20-20 kHz, 0.03% THD, 4 ohms) THD (20-20,000Hz) 8 ohms, all channels driven < 0.03% IM Distortion < 0.03% Damping Factor (8 ohms) >200 Input Sens. / Impedance 1.0 V / 20 k Ohms Frequency Response (+/-1 dB) 10Hz-100kHz S/N Ratio (IHF A) 115 dB Power Consumption 450 Watts Dimensions (W x H x D) mm 431 x 144 x 424 mm Dimensions (W x H x D) in. 17 x 5 5/8 x 16 5/8 in