There were two (hardware) additives synths, both from Kawai - the K5 and the K5000 series. I have the K5000S, and it is relatively difficult to program. It sou

There were two (hardware) additives synths, both from Kawai - the K5 and the K5000 series. I have the K5000S, and it is relatively difficult to program. It sounds like nothing else out there, don't think I'll ever get rid of it.