Yamaha CS-70m

Yamaha CS-70m Image
VSE Rating
User Rating

The CS70m is a great big powerful polyphonic analog synthesizer which belongs to Yamaha's excellent line of CS series synthesizers. Fat sounds, cutting leads and bubbly basses, the CS70m has 6 voices of polyphony each supported by 2 oscillators for a total of 12 analog VCO's! It's got very flexible LFO, envelope and filter controls all of which sound really nice and smooth. The VCF (filter) has its own independent envelope control as well.

Truly a lush sounding instrument that would please anyone looking for that J.M. Jarre or Tangerine Dream sound. Other features include a 4 track polyphonic sequencer, a 5 octave keyboard with aftertouch sensitivity and external magnetic data card memory storage. With only a slim 30 preset sounds that are mediocre, this is the kind of synthesizer that begs you to grab its knobs and start editing (that could possibly explain its big flashy knobs and buttons).

All in all an excellent and large synthesizer that will make any synthesist happy! It has been used by Kajagoogoo. The next step up from this synth is Yamaha's CS-80 which is an eight voice monstrous beast quite similar to the CS70m. The CS70m is likely to be too large for anything more than studio use but if you can find one it is definitely worth a listen!

Lookup Prices for CS-70m

Demos & Media

Yamaha CS70m
Yamaha CS70m by Sundayman
Audio Clip 1 A very nice mix created by Udo Peters for this site!


Polyphony - 6 voices
Oscillators - 12 VCO's (2 per voice)
LFO - 2 LFO's (1 is programmable)
Filter - 12 VCF's (2 per voice, 12dB each) with envelope generator
VCA - 12 VCA's (2 per voice)
Keyboard - 61 keys with aftertouch
Memory - 30 voice memory
Control - None
Date Produced - 1981-84


Images from Perfect Circuit Audio.

Info submitted by Udo Peters.