I've heard from a person that personally demo'd the KN 7000 and he said it was very lackluster, ie. mediocre. If you've listened to the KN 7000 demo MP3 files you'll understand more of why he said what he said. The Tyros on the other hand has some fantastic demo files in my opinion; although they tout there Mega Voice technology and what it can do for acoustic instruments I still feel the guitar sounds from the demo files still aren't able to effectively, eg., 'correctly and accurately' reproduce true life-like guitar sounds but there getting closer to that ideal. It also may be that the demo files that feature guitar voices aren't those of the Mega Voice sample. But the only way to truly know which one is right for you, is to try both and then decide.

Mike