Except for badging, some of these models look identical. It has been mentioned in other threads (AKX10 vs Yamaha SX900) that Medeli builds for others including Kurzweil. Do the Medeli versions have same sound engines, including Kurzweil pianos, in them? Or does it stop at sounds/styles? Examples..

Kurzweil KP200= Medeli A810
Kurzweil KP300X= Medeli AW830 (also w touch screen as A1000)