Hi Scott,

If at all possible, you should try to test all three machines using an amp with the same settings and not listen to the keyboard's internal speakers. Of course, the Tyros does not come with speakers, therefore, in order to hear the individual sounds, you'll need an amp or use the external speakers. Keep in mind that on this forum there have been lots of threads about the diffence in sound quality between speakers. However, if you're running the keyboard's output through an amp using the same, exact settings for each keyboard, you can then judge the sound quality of each based on what your audience will hear.

Essentially, all three are good machines. I've played the 9000 a couple times, the sounds and styles were excellent. I currently own a pair of 740s and 2000s and the sweet voices are beyond a doubt among the best. I have not had the opportunity to listen to the Tyros at this point, but I intend to do so sometime in the next two weeks. If it is as good as everyone on the forum claims, and $2000 bucks better than the PSR-2000, I'll replace my 740s and begin another learning curve. Sure hope my wife doesn't see those post--she'll kill me.

Cheers,

Gary