I believe that the Avia disk is very similar to the Sound and Vision disk I used with my Denon. My Denon set up was the same as yours, I could only do it with the built in test tones, but it was helpful with the phase. I found that my sub integrated much better with the phase set at 180. Where the disk was very helpful, was in calibrating the TV. It made it very easy and there was a definite improvement.