Dave,
I don't sing at all so the harmonizer is a non-issue to me, but I am definitely interested in this PA-900 because from the demo's heard so far it appears to have a lot of beautiful sounds, maybe not even present in the flagship PA3-X.
Is this true? Having had both, can you comment on the differences in sounds and styles between the two kb? On the manual they could even have the same names, but do they sound the same or are there clear differences?
Thanks