This is the Kawai K5000S hub.
Posts about the Kawai K5000S on this site:
- Making Sense of Kawai K5000 Patch Data Files
- Putting Kawai K5000 patches in their place
- Kawai K5000S system update
- Kawai K5000S init patch with sine wave
- Kawai K5000 init patch with sawtooth wave
See also the Kawai K5000 group on Facebook.