Marantz PM6005 Yamaha A-S501 NAD C 326BEE
General
Weight 7.6kg16.76 lbs 10.3kg22.71 lbs 6.9kg15.21 lbs
Dimensions (W x H x D) 440 x 105 x 370 mm17.32 x 4.13 x 14.57 in 435 x 151 x 387 mm17.13 x 5.94 x 15.24 in 435 x 116 x 332 mm17.13 x 4.57 x 13.07 in
Amplifier
Power Output (8Ω x 2) 45W20 Hz - 20 kHz both channels driven 85WMinimum RMS output power, 20 Hz-20 kHz, 0.019% THD 50WContinuous output power
Power Output (6Ω x 2) 100WMinimum RMS output power, 20 Hz-20 kHz, 0.038% THD
Power Output (4Ω x 2) 60W20 Hz - 20 kHz both channels driven 50WContinuous output power
Total Harmonic Distortion 0.019%8Ω, 20Hz - 20kHz
Frequency Response 20Hz – 20kHz / +0.5dB, -0.5dB10Hz – 100kHz / +1dB, -1dBPURE DIRECT
Damping Factor 1008Ω, 40Hz - 20kHz 2408Ω, 1kHz 1008Ω, 1kHz
Inputs
Analog Audio
  RCA Stereo 4 inputsrear 5 inputsrear 7 inputsrear
  Phono (RCA+Ground) 1rear 1rear
  3.5mm Stereo Jack 1 inputfront
Digital Audio
  S/PDIF Coaxial 1 inputrear 1 inputrear
  TOSLINK Optical 1 inputrear 1 inputrear
Outputs
Analog Audio
  Speakers 2 outputsrear 2 outputsrear 1 outputrear
  Headphones 1/4" 1/4" 1/4"
  Preamp 1 ouputRCA