Yamaha CS-80

We are Brokering this CS-80 for and on behalf of our UK client.

Came into stock: Came into stock in July 2022.

Service Status:  Full service by Mr CS80 himself, Kent Spong of KSR , was carried out in July 2022.


A rare opportunity to buy the instrument that Vangelis made his own and is largely recognised as the finest analogue polysynth ever produced, the Yamaha CS-80.


This CS80 we are offering for sale comes to us for Brokering from a private owner who had sent the instrument to KSR directly for a full service to ensure it’s fully operational and ready for us to sell for them.  The serial number (#1107) tells us this is an earlier production version, so will date back to around 1978.  

Kent at KSR told us that he had this actual CS-80 in for a full operational refurbishment several years ago, so it’s had all the critical updates done for stability and longevity.  The service that’s just been carried out has mainly focussed on calibrations and a replacement Key-Assigner IC.  We fully tested the CS-80 at the KSR workshop on 11th August and can attest to it being 100% perfectly working – it’s got a lovely tone, with it being an earlier production model.

Most CS-80 have lost their ‘pedals, music stand and legs’ over the years, so we cannot supply these original accessories to the new owner, and like so many, this example for sale does not have most of these either, although it is supplied with a Yamaha branded sustain pedal (pictured).  This CS-80 does not have its original lid either. It will come supplies with an original Yamaha CS-80 service manual, which is actually a folder full of original schematics.  Lastly, the current owner has included an historic bill of sale that’s survived with this instrument dated from 1988, which rather amusingly priced the CS-80 at £325, so a nice piece of provenance at least.

If MIDI is required on the CS-80, then we can normally supply and install the Kenton Midi retrofit Kits for an additional charge, so please ask us for a quote to supply and install this for you. Please note that any modifications like fitting MIDI are only carried out after the synth has been purchased in full.

This CS-80 operates on EU220V but can be converted to US110V if required by Kent at KSR (subject to quotation).


The overall cosmetic condition of this CS-80 is good, but it does show signs of wear to the control surfaces and tolex, as we would expect from a 44-year-old instrument, and we hope the pictures we have provided with this listing give you a good feel for how it presents.  Most importantly, it’s working perfectly, so it would serve as a superb studio machine, and because of the world-renowned skills of Kent at KSR with this model, he’s able to ‘dial in’ the tuning of the VCO to work optimally for this specific machine.  This CS-80 has not had any modifications done to it, so it’s a completely original example.

With Kent’s agreement, we took a picture of him with the CS-80.  As many of you will know, Kent Spong is recognised worldwide as one of the top CS-80 specialist technicians, so you could not have a more qualified person to set up this synth and support it.  Just Google ‘Kent Spong and CS-80’, and you will see that his reputation is well deserved where the CS-80 is concerned, and of course, just about any make and model of vintage synth.

Warranty provided on this CS80:

The CS80 is sold with a 3-month warranty as standard, which covers all parts and labour and telephone/Skype technical support from KSR.  The CS-80 currently resides at the KSR workshop, where it is available for demo (upon request). 

Packing & Shipping: 

We can ship this instrument worldwide, although the packing, shipping & insurance costs are not included in the sale price below, so are subject to quotation.  Having shipped many CS-80 all over the world, we would recommend having it custom crated and palletised for shipping, which we can organise through our specialist suppliers. We are happy to discuss your requirements, so please email us if you have any questions on the logistics and/or need a quote.

Sales Price: £45,000 GBP

As this is a brokered sale, VAT is not applicable on the sale to UK buyers. However, packing & shipping/insurance is subject to VAT @ 20% should you need the goods shipped to you.


This CS-80 is no longer available for sale:  This listing was updated on 21st December 2022 @ 10:52 GMT.


Click on the thumbnail for a higher resolution photo of the actual CS-80 for sale.  If you require specific pictures not already featured of the instrument, then please contact us so we can try and accommodate your request.  As you can see, we took the pictures in situ at the KSR workshop on 11th August 2022.