MATRIXSYNTH: Yamaha CS-80 with the ULTIMATE UPGRADE


Saturday, June 24, 2023

Yamaha CS-80 with the ULTIMATE UPGRADE

Note: Auction links are affiliate links for which the site may be compensated.


via this auction

"Welcome to the very best Yamaha CS-80 to ever be available for sale. The very best in terms of electronic condition/calibration and capability, and certainly the one with the longest life expectancy you can find. A life expectancy longer by some decades from the other not-upgraded 'regular' CS-80s you will find around.

Why is that ? Because not only has it been fully serviced but also it has the most advanced and thorough upgrade ever to be installed in a CS-80. And very possibly never to be matched in the near nor distant future.


To achieve all this an extensive service has had to be performed, among which :

- all electrolytic capacitors were replaced since the old ones are bad (around 450)

- all sliders and switches were professionally cleaned (around 80)

- cleaning and readjustment of the keyboard contacts

- cleaning of the polyphonic aftertouch parts

- removal of 5 old boards, to be replaced by 7 new boards. Now the very rare YM26600 and YM26700 chips are replaced by modern and easily available electronics. Meaning this CS-80 has some decades of life expectancy added to what a 'regular' one could hope for.

- around 250 additional wires, several modifications to the boards and around 70 extra capacitors are needed to make everything possible

- complete calibration of all circuit boards

- The programmer is connected to the back of the CS-80 with a single connector.

Some of the added features :

- 6 banks of 128 free programmable presets

- 3 banks of 128 free programmable performances (pair of presets + added features)

- possibility of dumping performances and presets by SysEx

- MIDI sending and receiving of almost every parameter (more then 100 CC# !)

- full MIDI support of the CS-80 keyboard's polyphonic aftertouch

- special keyboard settings like octave transpose, velocity and aftertouch response

- automatic keyboard double trigger remove setting

- programmable chord memory

- foot pedal can be programmed sending CC messages so you can control up to 4 parameters simultaneously.

- possibility of manually disabling any defective voice(s)

- autotuning of all 16 oscillators. See Proof Of Concept in video linked at the end of my description. (and for those who would argue a true CS-80 is always a little out of tune you have a detune feature to bring back some of it if desired. From 0 (perfect tune) to 127 (extreme out of tune))

- 3 additional separate global LFOs for VCO, VCF and VCA (with MIDI clock sync, sync degrees, division factor, etc...)

- special playmodes such as voice stealing, monophonic and polyphonic in unison (2-voice, 4-voice or 8-voice unisons) with detune setting.

- VCF and VCA envelope time can separately be switched to 5 times the original length

- original ribbon pitch modulation's amplitude can be reduced to taste

- very much care has been taken so the 'analog feel' of the CS-80 stays identical to original.

Since almost every parameter of the synthesizer can receive and send MIDI data and be stored in memory it's easier to list only those who cannot :

- detune CHII slider

- the four touch response sliders

- the master volume knob (although volume expression can be controlled by foot controller and MIDI)

- Foot Pedal EXP & EXPWAH switches

- The sustain slider of left-hand panel (although it can be controlled on/off by foot switch and MIDI)

- the switches and knobs of the tremolo and chorus section.

This CS-80 comes with its original lid, original metal stand, original foot pedal, the Programmer + its cable and a manual for the upgrade."

No comments:

Post a Comment

To reduce spam, comments for posts older than one week are not displayed until approved, usually same day. Do not insult people. For items for sale, do not ask if it is still available. Check the auction link and search for the item. Auctions are from various sellers and expire over time. Posts remain for the pics and historical purposes. This site is meant to be a daily snapshot of some of what was out there in the world of synths.

PREVIOUS PAGE NEXT PAGE HOME


Patch n Tweak
Switched On Make Synthesizer Evolution Vintage Synthesizers Creating Sound Fundlementals of Synthesizer Programming Kraftwerk

© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH