What Denon say The AVC-A1SE features an equal power 7-channel amplifier section, with identical amplifier design on all 7 channels. The Front (L/R), Center, and Surround (L/R) channels are driven by 170 watts of power each, and the two Surround Back channels, used for 6.1-channel DTS-ES and THX Surround EX sources, are also each powered with 170 watts (all channels rated into 8 ohms, 20 Hz - 20 kHz).
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