Nakamichi 620

Data

General

• Manufacturer: Nakamichi
• Model: 620
• Type: Power amplifier
• Years of manufacture: 1977 - 1979
• Made in: Japan
• Color: Black
• Remote control:
• Power consumption: 700 W max. 50 W Quiet.
• Dimensions: 400 x 189 x 248 mm (WxHxD)
• Weight: 12.5 kg
• Original price approx.: 1'800 DM

Connections

• Number of inputs:
  • Line In: 1 V, 10 kOhm
• Number of outputs:
  • 1 pair of speakers

Technical Data

• Continuous power (at distortion factor)
  • 8 Ohm: 2x 100 W (5 - 20'000 Hz, 0.02 %)
  • 4 Ohm:
• continuous power BTL (mono) (at distortion factor).
  • 8 Ohm: 350 W
  • 4 Ohm:
• Dynamic power
  • 8 Ohm:
  • 4 Ohm:
• Total harmonic distortion:
  • <0.002% at 1 kHz.
  • <0,005 % bei 10 kHz
• Dämpfungsfaktor: >100 at 1 kHz at 8 oh</0,005> ms <0,005 % bei 10 kHz
• Dämpfungsfaktor: >
• Frequency response: 5 - 100'000 Hz, + 0 dB, - 1 dB
• Signal-to-noise ratio: > 120 dB
• Crosstalk attenuation: > 70 dB (1 kHz)

Special Features

• BTL Mono bridgeable
• Power level indicators switchable:
  • Green: 1 W, 5 W, 25 W.
  • Red: 25 W, 50 W, Max.

Remarks

• Other models in the same series:
• Preamplifier:
• Nakamichi 410
• Nakamichi 610

• Power amplifier:
• Nakamichi 420
• Nakamichi 620

• Tuner Preamplifier:
• Nakamichi 630

• Tape Deck:
• Nakamichi 350
• Nakamichi 500
• Nakamichi 550
• Nakamichi 600
• Nakamichi 700
• Nakamichi 1000

Pictures

• Extract from brochure: Nakamichi 620

Reports

• Report in "FonoForum" 12 / 1977

Links

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