Yamaha CS-40M Vintage Analogue Duophonic Synthesiser - 240V

  • Sale
  • Regular price $4,399.00

Yamaha CS-40M Analogue Duophonic Synthesiser

The Yamaha CS-40m analogue synthesiser was created in 1979, this duophonic (2-voice) synth brought affordability to those seeking more than a mono-synth experience. 

Featuring a 44-note, keyboard, 36 knobs, 12 sliders, and over a dozen buttons for hands-on performance and editing, it offers easy customisation.

Although sharing its name CS-80, the CS-40m is more reminiscent of the CS-20m, offering two analog oscillators per voice with triangle, sawtooth, square waveforms, and a noise generator. Each oscillator boasts a simple AR envelope generator for dynamic sound shaping.

The multi-mode VCF (filter) provides lowpass, bandpass, and highpass options with cutoff and resonance controls. Although the resonance can't self-oscillate, its ADSR envelope generator allows for sweeping filter effects. Plus, there's a basic LFO for modulating VCO, VCF, or VCA.

  • This is a used unit.

  • This unit is overall in good condition. It shows some general wear like some nicks, scratches and marks. There is some light oxidisation which can been seen over the whole front panel. There are also some chips and nicks in the veneer side panels. Overall it is still a pretty nice piece. All text is clear. The wear does not detract from the use, functions or sound of this awesome synthesiser. 

  • This unit has been serviced and thoroughly tested. It has no faults to note. 

  • This unit is 240V. It is ready to plug and play within Australia and New Zealand! If you purchase from overseas please ensure you have the correct step-up transformer before powering this synthesiser on. If you are unsure about this please send us a message and we would be glad to help you out.

  • This unit powers on with an IEC cable. This cable will be included in the sale. 

  • This sale is for the unit and IEC only. No other parts, accessories or cables are included.

Polyphony - (2-voices) Duophonic
Oscillators - 2 VCO's + noise gen. Triangle, Sawtooth, Square (Pulse) waveforms.
LFO - Waveforms: sine, up-ramp, down-ramp, square, and sample-and-hold.
Filter - multimode: Low-, Band-, High-Pass w/ cutoff, resonance, and ADSR envelope controls
VCA - ADSR (x5 switch)
Keyboard - 44 keys (3 1/2 octaves)
Memory - 20 patches via 2 banks of 10 presets; external cassette interface
Control - CV/Trigger outputs for each voice and CV inputs for portamento, sustain, brilliance, volume and filter.
Date Produced - 1979 - 1986


If you are in a remote area you may incur extra fees. 

International import tax, duty, vat, custom fees or any other charges are not covered by us, nor included in the shipping fees. These are the responsibility of the buyer.  

Return Policy:

Returns will only be accepted for manufacture defects / faulty items. Please contact us if you have any problems with your purchase and we will strive to work it out with you