This website is reader supported. When you purchase items on eBay through the links on this site, we may earn an affiliate commission at no cost to you. Read our Privacy Policy for info.

Korg Mono/Poly

“This is my used Korg Mono/Poly synth. I’m really sad to let this go, but I just don’t have the studio space for it anymore. This was well cared for in a smoke-free environment, but it did sit in a closet for years until now and it got a little dusty. I just tested it and cleaned the surface, and all oscillators and features seem to be working, but there are a few keys that seem to need a little extra pressure to respond (all of the keys do work), but even after I played it for a few minutes the issue seemed to clear up and those keys got more responsive right away (specifically: the G2 seems to take a little extra pressure. B1,F2,G4,B4 just slightly delayed but quickly improved).. so I suspect that it could just use an internal cleaning, maybe even a blowing out would fix it up? The rest of the knobs and switches are intact and working. The volume knob was scratchy for a moment but that went away after a few rotations.
The physical appearance is fantastic. There are a few small dings on the edges, but it looks really nice. Check the photos.
If you’ve never played a Mono/Poly, this is my favorite vintage synth. The mind-bending rumbling bass and inter-planetary sounds you can make with this device make it super-fun to waste hours on tinkering! After testing it out for a few minutes I almost changed my mind about selling it!!” Click here to search for synths on eBay