£320.00 to £470.00 ex VAT
£384.00 to £564.00 inc VAT


PLEASE NOTE: Installing a retrofit kit is a skilled job which should be undertaken only by a competent synth service engineer or installed by us at our premises in Tadworth, just outside London.

Note also that retrofit kits are always built to order after your payment has been processed. It then takes us up to 10 working days to build and test the kit before we can despatch it.

Retrofit Kit

This retrofit kit for the Yamaha CS-70M adds the following MIDI control:

This kit is to receive MIDI only, no MIDI can be sent from this keyboard.

For incoming MIDI:
Any MIDI channel can be selected
Notes (MIDI note numbers 36 – 96) – transpose possible
Responds to program change (numbers 1 – 32)
Pitchbend – (bends up and down an 2 semitones)
Mod Wheel
Filter cutoff frequency (of low pass filter)
Sustain on/off
Portamento on/off

By default:
Pitchbend is controlled by pitchbend messages
Mod wheel is controlled by Mod Wheel (CC#1)
Aftertouch is controlled by Aftertouch messages
Filter cutoff is controlled by CC#16
Volume is controlled by MIDI volume (CC#7)
Sustain is controlled by Sustain (CC#64)
Portamento is controlled by Portamento (CC#65)

However the above assignments can be re-mapped if required – so for
example velocity could be mapped to control volume.

MIDI Out: Not supported

MIDI In & Thru sockets
Push button (for programming the MIDI setup)
Setups are stored in non-volatile memory (Eeprom)

The kit comprises the following items:
Circuit board – fits on top of the metal processor box
Small pack – contains DIN sockets and mounting hardware
Large pack – contains cable assemblies
User instructions – How to change from default settings and general
Fitting instructions – step by step fitting guide plus diagrams of where
to connect what

All kits are fully checked and tested before despatch

Note: Our retrofit kits are not intended for installation by the end
user. They should always be fitted by an experienced synth engineer.

More Info

More Links

What is MIDI to CV?

Solving MIDI Clock Problems


How to connect using our MIDI to CV Converters