Yamaha CS-30

Yamaha CS-30 Image

The CS-30 is a large, knob infested, black analog synthesizer with traditional features. It is a monophonic synth with extensive analog control and shaping. It has two oscillators with separate outputs, two voltage-controlled resonant filters, two voltage-controlled amplifiers and three envelopes. It also features a ring modulator, external audio triggering and a simple but useful 8-step sequencer for use as a sketch pad, pattern or arpeggio effect. The CS-30 does not have any on-board effects, memory nor MIDI. Although the CS-30 is just a monophonic synth with a short 44 note keyboard it offers a lot of programming flexibility, and plenty of knobs. It's used by 808 State.

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34 Visitor comments
Frank Carvalho
August 4, 2010 @ 1:33 pm
Yes, I can confirm that. The ring modulator is situated on the VCA2 section, just below the "YAMAHA" letters. See my page: for details, description and some weird sound samples.
July 23, 2010 @ 2:54 am
Can someone verify for me that the CS-30 and CS-30L actually have a ring modulator? I've seen it mentioned online including here but from looking at photos of it I can't see where it might be located? I've also read that it uses the same filter as the CS-80, is there any truth in that? Thanks in advance.
Mert Topel
April 26, 2010 @ 6:35 am
Impractical on stage because of lack of memory, the number of knobs ready to ruin your patch at a slight accidental touch and it's very confusing signal flow.

Sounds mediocre when used mainstream but perfect for experimental synthesis.

Ability to modulate sounds via internal step sequencer and A/D input gives a lot of power.
November 25, 2009 @ 10:48 am
Herman Gillis had one in his studio as well.
October 15, 2009 @ 6:32 pm
I just bought one, that's a wonderful instrument for researching analog textures that just modulars can do!!
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  • Check Prices on eBay
  • The link above will take you to a 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.
  • Specifications
  • Polyphony - (1) Monophonic
  • Oscillators - 2 VCOs
  • Arpeg/Seq - Sequencer (Only 8 notes, 1 pattern)
  • Effects - None
  • Keyboard - 44 Keys
  • Memory - None
  • Control - CV/Gate, External Trigger
  • Date Produced - 1977 - 1980
  • Resources & Credits
  • Image submitted via email.

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