Hello,
I just bought a yamaha psr9000 pro as a second instrument and I like it a lot.
Good rythms and also good sounds...but for the sounds not so good as the technics kn6500. I also have the technics kn6500 with the ew01 and ew02 board and these sound very good. A personal opinion maybe.
Good luck with your second keyboard....when you can afford it take a good second keyboard.....that's not the same with women....if you have a good woman you have to stick with it...it is not permitted to have a second woman to add to your first woman.....

Greetings from Belgium,
Just played 2 - 2 against Japan.....sad.

Alain