I too both enjoyed the guy's playing and music, but I honestly don't hear much (if any) sonic improvement over the PA2X.
Would be interesting & revealing to hear a direct PA2X and PA3X played side by side.
FransN, I can see now why you're so excited now upgrading from the PA500 to PA3X. I know you are going to LOVE the PA3X.
In addition to the many new features and sounds, it's TC helicon VH & new chord sequencer are a terrific asset.
I can't wait till you finally get it and hope you record and share your music created on it for us. - Scott