Of the 100's keyboards I have owned over the years..I never "owned" a KN series...I did own a WSA-1...

I have played the KN1600, KN5000,KN6000 and KN7000, but never wanted to own one..

Listening to on line demos..it does sound like the KN2000 is richer than the newer models..Newer models seem to sound a bit thinner (at least on youtube)...Any comments about the difference in sound?