As you know, this marvel of synthesizer world needs no introduction.

The person who acquires this unique analog power from Japanese genius will hold the golden key worthy of a work by Michelangelo. I am the 2nd owner, hold the original invoice.

My CS-80 has always been in optimal environmental condition.

At the time of my acquisition, I had the capacitors restored for Hi-fi models, a real monk's job by a top expert. This upgrade is extremely rare and contributes greatly to is longevity and the dynamic of the sonic sound.

Also the power supply was restored at the same time.

Important update

Excellent news for the future owner.

Always in the spirit of improving and updating this magnificent CS80 in collaboration with one of the rare specialists in the CS series.

Replacing the 4000-Series Chips for aftertouch

Preventative maintenance repairs begin to merit consideration for the longevity of the precious aftertounch games has just been assured. Cool!


The voice cards have been put back into perfect harmony. WOW Just the right harmonic frequency and wonderful sound richness. As left from the factory


LEDS installed at the base of each of the voice cards to allow you to individually identify the one activated by keyboard key if you perhaps one day have a tuning done. A technical visual plus that makes the difference during this tuning work and eliminates handling errors.

Internal and external component verifications

For those less familiar with the instrument in terms of technical, scientific and historical aspects, I invite you to visit Vintagesynth.com and Wikipedia.org

My studio is based in Montréal, Québec, Canada

See you soon!

Dream your life in color, it's the secret to happiness.

Blue Sun Music

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Listed3 months ago
ConditionExcellent (Used)
Excellent items are almost entirely free from blemishes and other visual defects and have been played or used with the utmost care.learn more
  • CS-80 Polyphonic Synthesizer
  • Black
  • 1977 - 1979
Made In
  • Japan
Number of Keys
  • 61 Keys

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Blue Sun Music

Saint-Roch-de-Richelieu, Canada
Joined Reverb:2023

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