Yamaha CS80

This CS80 is currently located at our restoration partners – KSR in Surrey, UK.

The CS80 is in original condition, so had not had any modifications fitted (no MIDI).  We purchased this from our UK customer, who owned the CS80 since the early 1980s when it was used by them in productions under British pop band name ‘Swing Out Sister,’ although it had been stored unused for about 20 years until this year. Cosmetically it is in overall good condition but does show signs of wear & tear to the control surfaces and tolex, but a full cosmetic restoration is available if a pristine finish is required (see upgrade options below).  To keep the CS80 competitively priced, we are selling this as-is in terms of cosmetic presentation, but KSR have already carried out a full operational restoration on this CS80 to ensure it’s sold 100% perfectly working and fully guaranteed.

The CS80 has already been fully operationally restored (Level 1) by KSR, which is normally a costed service at £3K GBP alone, so the following work has been implemented:

The restoration comprises (not limited to) the total replacement of all the old CMOS Logic IC’s, all of the dual op-amps, voice card, and power supply capacitors & transistors. In addition to this the TKC circuit board, which controls the polyphonic after touch of the CS80, is fitted with a set of bypass/decoupling capacitors for each IC to greatly reduce the chance of failure of the touch response circuit. To cap this off, a full calibration is then performed (voltages to within within 3 decimal places). The actual list of work is huge, and changes out several hundred components,  and includes a 14 day burn-in test period/stress testing.

All the RL Music supplied CS80s are serviced/restored by the world renown CS80 expert Kent Spong of KSR (Kent Spong Restorations) in London. Sound on Sound magazine (SOS) did an interview article on Kent, which you can find here:


Warranty Provided:
The CS80 is sold with a 6 month warranty as standard which covers all parts and labour and telephone/Skype technical support. KSR also provide full after-sales technical support for the CS80 by phone, email and Skype post-warranty. KSR are world renown CS80 experts and currently support hundreds of these models around the world for professional musicians/studios and enthusiasts etc.

Upgrade Option 1:
If Midi is required on the CS80 then we are able to supply and install the Kenton Midi retrofit Kits for an additional £850 GBP. Payment for the Midi Kits must be made in advance as they are made to order (minimum 14 day lead-time from Kenton).

Upgrade Option 2:
Total-Restoration Upgrade
All aspects of the CS80 cosmetic presentation are addressed including re-tolexing all the exterior, re-painting and screen printing all control surfaces. This work can take up to 12 weeks to complete from receipt of deposit (minimum 20%).  For more information on what is included in this ultimate upgrade option then please call or email us for details. The Total-Restoration Cosmetic Upgrade Option costs £3000 GBP. (does not include upgrade options 1, 3 & 4)

Upgrade Option 3:
Wood Surround (in Walnut) beautifully hand crafted by Lamond Design for an additional £750 GBP.

Upgrade Option 4:
KSR have designed the special modification for the CS80 (The Cascade Unison Mod ) so that if you press a single note then you get all 16 VCOs but if you press 2 notes together then it’s 8 voices per note..then 4 notes its 4 VCO’s per note etc etc. Thus meaning that it’s a kind of polyphonic unison, and offers new creative control of the powerful sound the CS80 delivers. Nearly all CS80’s we have sold in the last few years have had these fitted and it definitely adds great sonic value with no impact on the systems reliability or longevity. The Cascade Unison Mod costs £850 GBP.

Items of Note on this CS80 for sale:
Most CS80’s have lost their ‘Pedals, Music Stand and Legs’ over the years, so we are unable to supply these original accessories to the new owner, and this example for sale does not have any either. However, this CS80 we are Brokering does come with the original lid though (as pictured), and we will supply a copy of the owners manual on PDF.

This CS80 operates on EU220V, but can be converted to US110V if required.

Price: £14900 GBP

Availability: This CS80 is now SOLD as at 20th October 2016.

Pictures of the actual CS80 for sale below. We took these in-situ at the KSR workshop, where the CS80 currently is available to demo (upon request).