Really on the fence with this one. 4X is a star in some things and disappointing in a lot of other ways. The 3X was always a star, to me. I'm really thinking the 76 keys makes a huge difference and wish I had that version to compare. Currently, not sure if I want the change.
_________________________
Yamaha 920 / Yamaha DGX-670 / Maui 5 Go (2) / Senn e935 / Sony C80 / Tascam DP24sd / ATEM Mini Pro switcher (studio)