I’ve been reading some posts and i didn’t understant so far, if is it possible to have only 2 encoders, (without the led rings ) and the 64 analogue pots in the MIDIbox64. Please some help..
Read the documentation again and use the forum search function 
In MIDIbox64E it’s possible to use pots (64 of 'em) with encoders and buttons.
This thing was discussed not a long time ago.
Bye, Moebius