Nikko NA-690

Data

General

• Manufacturer: Nikko
• Model: NA-690
• Type: Integrated amplifier
• Years of manufacture: 1979 - 1981
• Made in: Japan
• Colors: Silver, Black
• Remote control: no
• Power consumption:
• Dimensions: 420 x 138 x 335 mm (WxHxD).
• Weight: 11 kg
• Original price approx.: 250 US-$, 800 DM

Connections

• Number of inputs:
  • Phono MM: 2.3 mV / 47 kOhm, 140 mV max.
  • Tuner: 150 mV / 39 kOhm

Aux: 150 mV / 39 kOhm

• • Tape Play: 150 mV / 39 kOhm
• Number of outputs:
  • Tape Rec: 150 mV / 39 kOhm
  • Headphones: 6,3 mm jack, front
  • 2 pairs of speakers

Technical Data

• Continuous power
  • 8 Ohm: 2x 45 W (RMS, 20 - 20'000 Hz, 0,04 %)
  • 4 Ohm:
• dynamic power
  • 8 Ohm:
  • 4 Ohm:
• Total harmonic distortion: 0.03 %
• Attenuation factor: 50 at 8 Ohm
• Frequency response:
  • Phono: 20 - 20'000 Hz
  • High level: 5 - 40'000 Hz
• Signal to noise ratio:
  • Phono MM: 80 dB
  • High level: 90 dB
• Tone control:
  • Bass at 70 Hz: ± 10 dB
  • Treble at 10 kHz: ± 10 dB
• Loudness: yes, + 10 dB at 70 Hz, + 6 dB at 10 kHz
• Low Filter: yes, - 6 dB / octave at 20 Hz
• High Filter: yes, - 6 dB / octave at 7 kHz
• Mute:

Comments

• Other models in the same series:
• Integrated amplifier:
• Nikko NA-590
• Nikko NA-690
• Nikko NA-790
• Nikko NA-890
• Nikko NA-990

• Preamplifier
• Nikko Beta 20
• Nikko Beta 40

• Power Amplifier
• Nikko Alpha III
• Nikko Alpha V
• Nikko Alpha 220
• Nikko Alpha 440

• Tuner
• Nikko NT-790
• Nikko NT-990
• Nikko Gamma 20
• Nikko Gamma 40

Pictures

• Image: Nikko NA-690

• Image: Nikko NA-690