Re ran YPAO 3 times with the same out of phase message on the 4 channels wired to my ADA1000.
The wiring is correct. Any chance RCA cables for video are different( I used left over cables from the satelite/PVR packaging)? I can't see it being the output on the reciever or the input on the amp.
I could swap the cables on one speaker and re run YPAO. Is there a risk of damaging speakers when used out of phase?
If all four channels are out of phase they are in effect in phase relative to each other but may be reversed in polarity compared to any other channels. How many other channels are you using and how are they wired?