The CS-20m is another of Yamaha's classic CS-series analog synthesizers of the '70's and '80's. It is a monophonic analog synthesizer with dual-VCOs that use subtractive synthesis to create superb bass, synth, lead, bubbly-squirty and percussive sounds. It has all the essential components of a classic synth: There is a resonant filter with switchable high, band or lowpass filtering with its own ADSR envelope controls. There is an ADSR VCA envelope generator which contains a third oscillator which generates a sine wave to modulate and enhance your sounds. And there is an LFO which can modulate the PWM sweep. Fortunately, the CS-20m features 8 memory locations for patch storage of your favorite or most used sounds.
Stacked up against the other CS-synths, the CS-20m appears to be a very little brother to the CS-70m (a 12-VCO and very flexible beast). The CS-20m offers more memory patches than any other CS-synth (excluding newer CS1x and CS6x models). As for other synths, the CS-20m could be considered Minimoog-like, though it sounds much brighter and thinner than the Mini. If the Minimoog's price is out of your league, the CS-20m is not just a nice alternative but it is quite a classic and solid analog synth! It is used by The Crystal Method.
Lookup Yamaha CS-20m Prices
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Are you looking to buy or sell a Yamaha CS-20m? Post an ad in Gear For Sale or a request in Gear Wanted. For spare parts and repair services check out Gear Services & Other Goods. Our forums also has a Buyer’s Guide section where you can ask for advice on buying synthesizers.
- The link above will take you to an eBay search for this synth to see active listings. If you don't find it there, try looking in our forum marketplace or post a wanted classified.
- Polyphony - Monophonic
- Oscillators - 2 +1 sine osc. in VCA section
- LFO - 1
- Filter - 1 filter with low, band or hi pass; ADSR envelope
- VCA - 1 ADSR; additional sine wave generator
- Keyboard - 37 keys
- Memory - 8 patches
- Control - CV / Gate
- Date Produced - 1979
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- Resources & Credits
Images from Dance Tech.
Thanks to Scott Rogers for providing some information.
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