Having used the PSR-3000 in daily performances for more than a decade, I was very reluctant to upgrade to the S950. It took me nearly a year to find one and actually sit down and play it. After just 10 minutes playing Joe Ayala's S-950 I was a convert. I heard sounds that I never heard with the 3000 and the difference was very dramatic.
Good Luck,
Gary

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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)