I agree with Tony. The PSR3000 is the way to go. It is an incredible machine, and it has much more than the PSR1500 - especially in voices.

I play the PSR3000 professionally, day in and day out. In 10 months of performing - about 400 - 500 hours, I have not had any technical problems.

By the way, your English is outstanding - given that you only use it twice a year.

Beakybird