AUDIO POWER SPECIFICATIONS (DA2400ES: US) POWER OUTPUT AND TOTAL HARMONIC DISTORTION: With 8 ohm loads, both channels driven, from 20 – 20,000 Hz; rated 100 watts per channel minimum RMS power, with no more than 0.09% total harmonic distortion from 250 milliwatts to rated output. Amplifier section (DA2400ES: US) Power Output Rated Power Output at Stereo Mode1) (8 ohms 20 Hz – 20 kHz, THD 0.09%): 100 W + 100 W Reference Power Output at Stereo Mode (4 ohms 20 Hz – 20 kHz, THD 0.15%): 85 W + 85 W Reference Power Output (8 ohms 1 kHz, THD 0.7%) FRONT2) 110 W + 110 W CENTER2): 110 W SURROUND2): 110 W + 110 W SUR BACK2): 110 W + 110 W Reference Power Output (4 ohms 1 kHz, THD 0.7%) FRONT2) 100 W + 100 W CENTER2): 100 W SURROUND2): 100 W + 100 W SUR BACK2): 100 W + 100 W