Onkyo A-9050 Yamaha A-S301 Cambridge Audio Topaz AM10
General
Weight 8.2kg 18.08 lbs 9kg 19.84 lbs 5.6kg 12.35 lbs
Dimensions (W x H x D) 435 x 139 x 330.3 mm 17.13 x 5.47 x 13 in 435 x 151 x 387 mm 17.13 x 5.94 x 15.24 in 430 x 76 x 340 mm 16.93 x 3 x 13.39 in
Amplifier
Power Output (8Ω x 2) 75W FTC, minimum continuous power, 1kHz 60W Minimum RMS Output Power, 20 Hz-20 kHz 35W
Power Output (6Ω x 2) 70W Minimum RMS output power, 20 Hz-20 kHz, 0.038% THD
Power Output (4Ω x 2) 65W FTC, minimum continuous power, 1kHz
Total Harmonic Distortion 0.08% 8Ω, 1kHz, FTC minimum continuous power per channel 0.019% 50 W / 8 ohms 0.01% 8Ω, 1kHz, 80% of rated power
Frequency Response 5Hz – 50kHz / +3dB, -3dB
Damping Factor 60 8Ω, 1kHz, Front 210 8Ω, 1kHz 50
Inputs
Analog Audio
  RCA Stereo 4 inputs rear 5 inputs rear 4 inputs rear
  Phono (RCA+Ground) MM rear 1 rear 1 rear
  3.5mm Stereo Jack 1 input front 1 input front
Digital Audio
  S/PDIF Coaxial 2 inputs 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