Rhodes Chroma · The Chroma CPU Plus (CC+)

for all those rare Chroma Users – there is a processor replacement available for €308 which also adds midi via extra connection on the chromas back side.Rhodes Chroma · The Chroma CPU Plus (CC+)
synthesizer + sequencer

it adds:
midi, random patch generator, much less power consumption, Multiple user selectable/user definable keyboard velocity response curves.

the plan: patch names and the addition of a 20×2 alphanumeric display, to allow more useful display of parameter functions and choices.

info stolen from matrixsynth.