Integrated stereo amplifier NA-690

Nikko Electric Manufacturing Co., Ltd.; Tokyo

  • Year
  • 1979
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 320348

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 220-240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 90 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Integrated stereo amplifier NA-690 - Nikko Electric Manufacturing
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 420 x 138 x 435 mm / 16.5 x 5.4 x 17.1 inch
  • Notes
    • Continuous power output @ 0,04% THD: 45 W ( 8 ohm );
    • Power bandwidth @ 0,04% THD: 10Hz-30KHz;
    • Damping factor ( 8 ohm loads ) @ 1 KHz : 45;
    • Tone control BASS @ 70 Hz : +/- 10 dB;
    • Tone control TREBLE @ 10 KHz : +/- 10 dB;
    • Loudness control. 
  • Net weight (2.2 lb = 1 kg)
  • 11 kg / 24 lb 3.7 oz (24.229 lb)
  • Price in first year of sale
  • 498.00 DM
  • Mentioned in
  • Original Service manual
  • Literature/Schematics (1)
  • Preis lt. HiFi`80 von "hobby" Stand Sommer 1979
  • Author
  • Model page created by Giuseppe Feniello. See "Data change" for further contributors.

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