Happy Sunday. I can say I have a love affair with the 3X and the 4X is even more incredible.

As far as sound, OMG, run in stereo speakers (QSC8S/10S) or others to bring out the beauty of the board.
_________________________
Yamaha 920 / Yamaha DGX-670 / Maui 5 Go (2) / Senn e935 / Sony C80 / Tascam DP24sd / ATEM Mini Pro switcher (studio)