Sigma

” For sale is my Korg Sigma KP-30 Synthesizer keyboard. It is almost fully functional, however, the right green tab switch on the synthesizer section is not outputting any sound. Everything else is working normally as far as I can tell. This is a Japanese model, and I’m including a 120v to 100v adapter as part of the sale. Also included is the flight case.”
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” For sale is my Korg Sigma KP-30 Synthesizer keyboard. It is almost fully functional, however, the right green tab switch on the synthesizer section is not outputting any sound. Everything else is working normally as far as I can tell. This is a Japanese model, and I’m including a 120v to 100v adapter as part of the sale. Also included is the flight case.”
Click here to visit listing on eBay

“KORG SIGMA THE LEGEND ANALOG SYNTH!
WORKS PERFECT ONLY ONE SWITCH MISSING AND ONE COVER (BUT THE SWITCH WORKS!)
YOU CAN COPY ONE WITH 3D PRINTER :)” Click here to visit listing on eBay

“Korg Sigma vintage analogue synthesizer.

All functions tested and working.

Some minor wear to wooden ends.

One joystick is a replacement but works perfectly.

Two pin plug, transformer included in the sale.”
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“KORG SIGMA KP-30 Vintage Analog Synthesizer WORKS PERFECT. Everything works on it perfect no problems at all ” Click here to visit listing on eBay

“here im selling a korg sigma kp-30 analog synthesizer in very nice condition

most of these are in a terrible stae the wood and metal but this one lookg just gorgeous

it even has both original joysticks which are almost always missing or replaced

its in fully wokring order with slight crackle when turning the volume knob thats about it

it was one of the first synths with aftertouch for pitchbend and vibrato

its a synthesizer / preset two engine synth

the synthesizer section reminds a bit of the ms-20 series with dual filter

the preset section has still lots of parameters to adjusts on top

also an insane ring modulator that sounds very korg and a good amount of connectivity on the back including cv gate of course”

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“Used Korg Sigma Analogue Bi-Timbric Synthesizer. Not in the best condition, bit battered, one of the keys is a bit dicky, but clean and seems to generally work. Missing cut off and vibrato knobs, but these can be picked up from eBay. Also missing the music stand at the back. I have a video of me ‘playing’ it which I can provide. Has been sitting in a spare room for years and needs some love and attention” Click here to visit listing on eBay

“Its in fully working condition, having been recently serviced.
Work included power supply recap, new power cable was installed, switch cleaning, potentiometer cleaning, Pressure sensitive keyboard cleaning.

Cosmetic condition is very good, with only minor marks to the front panel and minor wear to the wooden side panels.” Click here to visit listing on eBay