I love my 3X, for 5 years and running. I am wondering how this board maps out with the 4X (transferring of all work in songbook).

Any replies appreciated.
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Yamaha 920 / Yamaha DGX-670 / Maui 5 Go (2) / Senn e935 / Sony C80 / Tascam DP24sd / ATEM Mini Pro switcher (studio)