Specifications - NAD 317Continuous average power output into 8 80W (19dBW)(Min power per channel, 20Hz - 20kHz both channelsdriven with no more than rated distortion)Rated distortion (20Hz - 20 kHz) 0.03%Clipping power (max continuous power per channel) 105W (20.2dBW)IHF dynamic headroom at 8 +1.5dBIHF dynamic power (max short term power per channel) 8 110W (20.4dBW)4 180W (22.6dBW)2 250W (23.9dBW)Damping factor (ref. 8 50Hz) >200Frequency response 20Hz - 20kHz ±0.3dB2Hz - 100kHz ±3 dBTHD + SMPTE I.M. + IHF I.M <0.03%Input impedance (R and C) 20k /500pFInput sensitivity (ref. rated power) 165mVSignal to noise ratio (A weighted) 90dB ref. 1W104dB ref. rated powerTreble control ±7dB at 10kHzBass control ±10dB at 50HzPhysical specificationsDimensions (W x H x D) 435 x 128 x 383mmNet weight 12.1kgShipping weight 13.6gNOTE: NAD reserves the right to change specifications or design at any time without notice. All specifications are those in effect at time of printing.