The MS-03 is an improved external signal processor  known from the MS-20.

This (rephrased) advert from the internet nails the simple desription:

“[The MS-03] Allows any instrument to ‘play’ a synthesizer. This signal processor converts any audio signal input into a synthesizer control signal. Put together a guitar or vocal synthesizer instantly by connecting the MS-03 between your guitar or mike and any synthesizer with CV and trigger inputs. No alterations are needed; just by plugging into the MS-03 and adjusting the controls, your instrument can actually ‘play’ the synthesizer. When performing live, connect a foot switch for portamento, pitch hold, and other useful effects”.

What’s worth mentioning is that it outputs both Korg Hz/V voltages and more commont V/Oct voltages. In human terms, most of vintage synths can be controlled with the 03.

The device is fully functional and is “like new in box”. Fascinating piece. 110V version will be shipped with a brand new 230V-100V power down converter.

PRICE:

615 EUR (500 EUR plus 23% VAT).

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