I do not think that PSR9Kpro has considerably better sounds than PSR8K. Also I believe Yamaha right now is at or close to the top winner. Therefore, I suggest you wait for new keyboard that beats all of those combined. GEM will be introducing new keyboard this comming winter NAMM. We have in so many occasions told them that: they need to get tons of memory in their new boards and also listen to Yamaha sounds to make sure to beat them. I hope they deliver!