What I have noticed in the new built pa3x is this following:
1. The POP sound when you press on standby is now gone!
2. When its on standby, you will not hear any "SSHHHHHHHHHH" sound from it.
3. Some buttons, ex the standby button is of better quality. The buttons edges is of plastic.
4. And it works faster then the old pa3x.
KORG have improved this aspects in the keyboard. that is great. but
Its only sad for us that have the old one, to be the beta testers

