just got back my Yamaha RX-A 3020 back from rebuild after being wiped out from a lighting strike last summer . it sounds great by the way took a new main board and another chip it was cheaper to fix than to replace the thing is using ypao it now sets the main speakers out of phase which after checking cables to be sure its wired up correctly my room is large and had the flooring replaced with laminte from carpet could this be throwing the reading off for the ypao every this else is almost spot on from the calabration distance , levels were very close after checked and tweked with sound meter although the back rears were off 2 db but that was raised up to match the rest nothing sounds out of phase should I just ignore the out of phase warning .