mdorantes,
I can relate to what you're saying, only I've experienced it in regards to my upgrade from the PSR-3000 to the S900...especially with the Sax and Guitar voices...I have several regular listeners, who came up and asked if I was using something new...the Sax voices were the most noticeable.
You're right; some people will be able to hear the difference.
I'm glad you're enjoying the Tyros3...sales have been very good recently, in spite of the recession...it's quite a keyboard.
Ian
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Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.