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Yamaha CS-20m

Monophonic Analog Synthesizer

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CS-20m 1CS-20m 2CS-20m 3CS-20m 4
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Yamaha CS-20m
Yamaha CS-20m
1 200.00 street price

CS-20m is a monophonic synthesizer based on a dual oscillator with subtractive synthesis. There’s a third oscillator producing a sine wave featured in the VCA section which helps to modulate the sound.

The instrument has a 37-note keyboard and offers an 8-patch memory for sounds storage. CS-20m delivers more program locations than other synths of the series except the new CS1x and CS6x models.

The monophonic analog synthesizer has a 3-mode resonant filter offering high pass, low pass and band pass options. The LFO modulates the PWM sweep.

The quality of the analog signal deserves appraisal and the price for the unit is comparatively moderate. The instrument was used by The Crystal Method.

Tags: analog synthesizer

Country of origin / production: Japan

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More info
Usage area
Usage Design/ Form Factor
With Keys 
Analogue (A) 
Tone Generator / Sound Synthesis
Oscillator Type VCO (Voltage Controlled Oscillator)
Oscillators per voice2
Waveform/ Spectral form (main generator) Sine
Waveform/ Spectral form (main generator) Saw
Waveform/ Spectral form (main generator) White Noise
Programs/ Voices/ Timbres
Single Voice Preset8
High-pass Filter (HPF) 
Low-pass Filter (LPF) 
Band-pass Filter (BPF) 
Envelope Generator (EG)
LFO: LFO Count1
Type Synth Action
Number of Keys37
External controllers
CV/ Gate IN 
CV/ Gate OUT 
Production start1979
Production ended

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