Easiest to use Processor

Most settings dont need played with once its set, why not get some help, do it right and enjoy. I say this because it seems some folks have an easy understanding of setting up and navigating menus, and some dont. All upper level units have a certain amount of complexity, as your dad obviously has a desire for a good performer (already owning a Lexicon) he is most likey going to have to get somebody to go over all set-up and calibration and then rarely adjust it...........thats how it should be anyway.
My father has a Lexicon and is not very good at messing with it, I am at the point now where I have learned the Lexicon so well that I can talk him thru any problem or adjustment on the phone, as we dont live near eachother.
If I may be of help let me know.

I wish I could just tell him not to play around with it, but he cannot resist it and will continue you to do it regardless. I'm looking at a few other processors, but have not settled on anything specific yet.

Regards

Sounds like he needs to mess with anything you might try to put him in, if a dealer will let him. Or print out PDF manuals and have him see if it appears he will like and know how to use the new unit.

I would recommend Rotel for it's simplicity. If Rotel isn't hi-end enough - Classe would be my next recommendation.