Rhodes Chroma Synthesizer, Restored & Upgraded

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via this Reverb listing

Video in the listing previously posted here.

"This Rhodes Chromas is in perfect working order, sounds absolutely great, and has been thoroughly updated & reconditioned:

• CC+ Kit Installed – The original CPU board has been removed and replaced with the fabulous CC+ kit. The Chroma CC+ Kit (CPU Plus) significantly upgrades the original Rhodes Chroma synthesizer by adding essential modern features like integrated MIDI, much more program storage (200 programs in 4 banks) instead of the original's limited space, better control over parameters, and expanded MIDI functionality. It essentially modernizes the vintage keyboard, making it fully controllable via MIDI and allowing for complex patch management. It also replaces the original battery-backed memory with non-volatile RAM, eliminating the need to replace the batteries, and removing the danger of battery acid damage.

• MIDI Adapter Included – The Chroma can now send and receive MIDI. With its wooden, velocity-sensitive keyboard, it becomes a fantastic MIDI controller.

• New Power Supply Installed – The original power supply included a large, heavy transformer, and generated a lot of heat. The new switching power supply, designed in Italy specifically for the Chroma, is energy-efficient, reliable, and regulated, ensuring that the Chroma will be stable and noise-free.

• Serviced – All voice cards have had new capacitors installed. All faulty 4000-series logic chips have been replaced, along with several faulty op-amps. Faulty traces and connectors have been replaced.


All voices pass auto-tune test and play perfectly. We’ve burned in the Chroma for 8+ hours and it works perfectly and stays in tune. All keys have been removed and cleaned, and the action feels great. All key contacts have been cleaned and work correctly, with good velocity response.

Cosmetically, the Chroma has some scratches and marks from its 40+ years of use, but overall it’s quite presentable as you can see in the photos.

The Chroma includes the original flight case – however, the foam has gone bad, and has been removed. The flight case would need to be re-foamed to be used to transport the instrument.

The Chroma is available for pickup in Las Vegas, Nevada. We can also personally deliver the Chroma to the Los Angeles, Phoenix, or St. George areas for $150.

The attached video demonstrates the Chroma playing three of the factory preset sounds.

I also have a video showing all 8 voice cards (16 oscillators, 16 filters, 16 VCAs) passing auto-tune without any errors that I can send upon request."