Not a new issue, my AVR lets you set small or large for each set of speakers. So it sets 80 for the smalls and none for the large. But I have never understood that would cause phase problems. If so, I wonder if Audessey fixes it? I've never heard that, but they damn well should.

Panny 3000 PJ, 118" Carada, Denon 3300, PS3, Axiom QS8, PSB 5T, B&W sub, levitating speaker wire