Yamaha A-1

Data

General

• Manufacturer: Yamaha
• Model: A-1
• Type: Integrated amplifier
• Years of manufacture: 1977 - 1980

Color: Black, abroad also silver

• Remote control: No
• Power consumption: 400 W
• Dimensions: 435 x 117 x 381 mm (WxHxD)
• Weight: 15,8 kg
• Original price approx.: 115'000 Yen (Japan, 1978), 1'500 DM

Connections

• Number of inputs:
  • Phono, tuner, tape, aux.
• Number of outputs:
  • Speaker, Rec-Out, Line-Out, Headphone

Technical Data

• Continuous power (at distortion factor)
  • 8 Ohm: 2x 70 Watt (0.02%)
  • 4 Ohm: 2x 80 Watt (0.05%)
• Dynamic power
  • 8 Ohm:
  • 4 Ohm:
• Total harmonic distortion: 0.02%
• Attenuation factor: 100
• Input (sensitivity/impedance)
  • Phono MM 2.5 mV/47 kOhm, MC 60 µV/10 Ohm
  • Tape, Tuner, Aux 200 mV/47 kOhm
• Output (level/impedance)

Rec-Out 200 mV/600 Ohm

• • Pre-Out 2 V/600 Ohm
• Frequency response: 20 - 20,000 Hz
• Tone control:
  • Bass: Yes, 350 Hz
  • Treble: Yes 3.5k Hz
• Loudness: No
• Subsonic: No
• Mute: No
• Direct/Line-Straight: Tone control can be switched off, Disc-Direct
• Ripple distance (shorted):
• Stereo Channel Separation: 70 dB
• Signal-to-noise ratio: 112 dB, Phono MM 85 dB

Special Features

• Mono/Stereo switchable
• Most controls behind hinged viewing panel

Remarks

• Other models in the same series:
• Integrated amplifiers:
• Yamaha A-1
• Yamaha A-3
• Yamaha A-5

• Tuner
• Yamaha T-1
• Yamaha T-2

Pictures

• Image: Yamaha A-1

• Image: Yamaha A-1

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Reports

Report in "FonoForum" 4 / 1979

• two-part report in "Funkschau" 1 / 1979 (part 1) and 3 / 1979 (part 2)