hifi engine

Manual Library / Nikko

Nikko NA-590

Stereo Integrated Amplifier (1980)

add a review (1 review)

Nikko NA-590


Stripped of unnecessary frills, the NA-590 offers everything the audiophile finds practical for high quality sound.

Circuits and components are made of low noise elements, leading to superior transient characteristics and maintaining an excellent signal-to-noise ratio.

Features such as the loudness control, subsonic filter, tape to tape dubbing monitor, and click-stop volume control are advantages that even an experienced music lover will quickly appreciate.


Power output: 35 watts per channel into 8Ω (stereo)

Frequency response: 20Hz to 20kHz

Total harmonic distortion: 0.05%

Damping factor: 40

Input sensitivity: 2.2mV (MM), 150mV (line)

Signal to noise ratio: 82dB (MM), 97dB (line)

Output: 140mV (line)

Speaker load impedance: 4Ω (minimum)

Dimensions: 420 x 96 x 335mm

Weight: 8.5kg

Year: 1980


II instruction/owners manual   English - Heronvale

II schematic   English - Heronvale

II service manual   English - Ivy Caudieus

Related Catalogues


If you have any problems opening files please read the download FAQ. All files are provided under strict licence and reproduction without prior permission or for financial gain is strictly prohibited.

If you have additional documentation please consider donating a copy to our free archive.


 Login or register to post reviews

Reviewed Apr 26th, 2015 by Threesheds

This is a great little amp. Clear sound reproduction with good frequency range. I recently dug this out of the loft and realised how much better it is than the mini system I had been using. If you have chance to get on buy it.



This website is not affiliated with or sponsored by Nikko. To purchase NA-590/NA-590 II spares or accessories, please contact the company via their website or visit an authorised retailer.