MATRIXSYNTH: Modded YAMAHA CS01 II Mobile Analog Synthesizer SN 2242

Friday, November 24, 2017

Modded YAMAHA CS01 II Mobile Analog Synthesizer SN 2242

via this auction

"Yamaha CS01 II analog synth in very good condition (there are some minor cosmetic scratches -- see pictures) with a modification made so that the breath controller VCA knob has been replaced with a pitch bend range potentiometer.

In an unmodified CS01 II, I believe you only get a half or whole step pitch bend range. (It's been a while since I've played an unmodified CS01 II, so I might be incorrect with the original range; suffice to say that it's fixed and narrow.) With this modification, you get between a half step and an full octave pitch bend range, depending on how far you turn the potentiometer. This modification makes this instrument MUCH more useful.

After adjusting the pitch bend range, you may need to adjust the VCO pitch slider to bring the synth back into concert pitch, as changing the pitch bend range tends to make the overall keyboard pitch slightly different, but that's a small inconvenience for having a truly useful pitch bend. I do not know if the breath controller will still work with this keyboard since it has been modified to have the pitch bend range potentiometer."

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