Yamaha R-900

Data

General

• Manufacturer: Yamaha
• Model: R-900
• Type: Receiver
• Years of manufacture: 1981 - 1982
• Made in: Japan
• Color: Silver
• Remote control: no
• Power consumption: 430 watts
• Dimensions: 480 x 122 x 337 mm
• Weight: 9.5 kg
• Original price approx.: 550 US-$ (1982), 1'450 DM

Connections

• Number of inputs:
  • Phono MM/MC: 2.5 mV/47 KOhm, MC: 120 µV/100 Ohm.
  • Aux, 2x Tape: 120 mV/47 KOhm
  • Main-In: 1 V/47 KOhm
• Number of outputs:
  • 2x Rec-Out: 120 mV/470 Ohm
  • Pre-Out: 1 V/1.6 KOhm
  • Headphones: 259 mW

Technical Data

Amplifier

• Continuous power (at distortion factor)
  • 8 Ohm: 2x 70 Watt at 0,015%, 2x 78 Watt according to DIN
  • 4 Ohm: 2x 100 Watt at 0,5%
• Dynamic power
  • 8 Ohm:
  • 4 Ohm:
• Total harmonic distortion: 0.005%
• Attenuation factor: > 40
• Frequency response: 5 - 100000 Hz
• Signal to noise ratio: 100 dB
• Tone control:
  • Bass: ±10 dB at 50 Hz

Treble: ± 10 dB at 20000 Hz

• Loudness: adjustable
• Subsonic: 15 Hz/12 dB, switchable
• Mute: no
• Direct/Line-Straight: no
• Stereo channel separation: 53 dB

Tuner

• Reception: FM, MW
• Frequencies:
  • FM: 87.6 - 108 MHz
  • MW: 525 - 1605 KHz
• Frequency response: 30 - 15'000 Hz
• Input sensitivity: 1.2µV/30µV (Mono/Stereo DIN)
• Distortion factor: 0.07
• Signal to noise ratio: 74 dB (Stereo DIN)
• Channel separation: 50 dB
• Selectivity: 68 dB
• Co-wave selection: 1.5 dB
• Spurious wave selection: 100 dB
• Image frequency attenuation: 62 dB
• IF attenuation: 100 dB
• AM suppression: 65 dB
• Output level:
• RDS: no
• Station memory: 5 FM, 5 MW

Special Features

• Pre-/power amplifier separable
• 2 pairs of speakers connectable
• High-Filter 8000 Hz/6 dB, switchable
• Spatial Expander
• Record selector

Notes

• Other models in the same series:
• Yamaha R-300
• Yamaha R-500
• Yamaha R-700
• Yamaha R-900
• Yamaha R-1000
• Yamaha R-2000

Pictures

• Extract from brochure: Yamaha R-900