A very reliable friend based in USA is selling this amazing old-school synth. If I had enough space I would have aquired myself!
Fully functional, good conditions. I can send more pics if needed.
There is no set price at the moment, so feel free to make an offer. Contact me in private and I'll forward your contact to my friend.
This is a short description:
"The Matrix 6R (pictured above) is the Matrix 6 without a keyboard, retaining its membrane programming interface. (...) For professional studio work or live on stage, both the Matrix 6 keyboard and rack-mount are excellent and versatile synths that make a great source of bright and punchy sounds, vintage analog pads, textures and ambient sounds. It is used by Orbital Apollo 440, Jimmy Edgar, Philip Glass, The Grid, Future Sound of London, Astral Projection, The Shamen, Mouse on Mars, Tangerine Dream and Cirrus."
From http://www.vintagesynth.com/oberheim/mat6.php
https://www.youtube.com/watch?v=KTdu598JMXo
Note: synth is currently in the USA in the state of New York.