Marantz PM6005 Yamaha A-S501 NAD C 326BEE
General
Weight 7.6kg 16.76 lbs 10.3kg 22.71 lbs 6.9kg 15.21 lbs
Dimensions (W x H x D) 440 x 105 x 370 mm 17.32 x 4.13 x 14.57 in 435 x 151 x 387 mm 17.13 x 5.94 x 15.24 in 435 x 116 x 332 mm 17.13 x 4.57 x 13.07 in
Amplifier
Power Output (8Ω x 2) 45W 20 Hz - 20 kHz both channels driven 85W Minimum RMS output power, 20 Hz-20 kHz, 0.019% THD 50W Continuous output power
Power Output (6Ω x 2) 100W Minimum RMS output power, 20 Hz-20 kHz, 0.038% THD
Power Output (4Ω x 2) 60W 20 Hz - 20 kHz both channels driven 50W Continuous output power
Total Harmonic Distortion 0.019% 8Ω, 20Hz - 20kHz
Frequency Response 20Hz – 20kHz / +0.5dB, -0.5dB
Damping Factor 100 8Ω, 40Hz - 20kHz 240 8Ω, 1kHz 100 8Ω, 1kHz
Inputs
Analog Audio
  RCA Stereo 4 inputs rear 5 inputs rear 7 inputs rear
  Phono (RCA+Ground) 1 rear 1 rear
  3.5mm Stereo Jack 1 input front
Digital Audio
  S/PDIF Coaxial 1 input rear 1 input rear
  TOSLINK Optical 1 input rear 1 input rear
Outputs
Analog Audio
  Speakers 2 outputs rear 2 outputs rear 1 output rear
  Headphones 1/4" 1/4" 1/4"
  Preamp 1 ouput RCA