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RARE Vintage 1975 Korg 800dv Maxikorg MIDI Duophonic 4 filter synth - $1,600
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$1600 with no midi/cv converter or $1800 includes the cv.ocd midi to cv converter which makes this a duophonic midi synth plus this converter can control more synths since it has 4 cv outs and 12 gates. Currently, it is set up for duophonic midi control of the Maxikorg, and duophonic midi control of a Yamaha CS15 synth but you can set it up to work with what ever synths you have.
One of the absolute most unique synthesizers ever made. This is my second one and if it sells, there’s a good chance I will buy it a third time. I love the oddballs and this sure is one. Each layer has both a high pass and low pass filter, an oscillator with noise, ring mod, and a sub osc, various bend, vibrato, etc. It‘s duophonic with different types of key triggering and it sounds like nothing else. It’s very used and scratched up and the highest key is kind of broken so I took it off. This has the wonderful cv/gate kit installed so you can not only play it duophonicly through midi but it also adds cv jacks for modulating the filters. It’s missing a few slider caps. Everything works EXCEPT when using the keyboard sometimes one layer goes wonky and either makes crazy noises or every key past the 5th key or something plays the same note. I showed a video of this behavior to some techs and they said it almost positively is just the contact bar needing a cleaning. It NEVER does this when played through midi. Still very usable and probably could easily be totally refurbished. IT'S 50 YEARS OLD AND SHIPPING IT MAY SHAKE IT'S GUTS A BIT. When I first got it some of the bending features didn't seem to work and all I did was open it and make sure everything was connected and then it worked. I used this synth on an album with Norman Westberg (Swans) and on a song with Lonesome Wyatt (Those Poor Bastards). Hear this Maxikorg play a ring mod duophonic lead at 4:53 of the song here: https://secretrecords.bandcamp.com/track/moon-base-13-featuring-lonesome-wyatt