I know that Audyssey is not a perfect tool, but it does provide some semblance of room EQ that was never available before. We had to live with what the room gave us. My unit seems to smooth out my room response in a pleasing way.

When I first ran it, it quickly discerned that my QS4s were out of phase. This condition probably would not have been easily detectable by ear as the surrounds are in use for only fleeting moments during movies. Similarly, it found that my subs' levels were waaaaay too high so I lowered them progressively to a more reasonable & correctable level - about half of where I had them set initially.

As for what it finds in my room: M22s - 40 Hz; VP100 - 80 Hz; & QS4s - 100 Hz. I believe that this is more or less accurate; however, it would not have much credibility if only 1 run in 1 position was used, but 6 (or more) averages the data pretty well I would think.

I kinda like it but I know others don't...

TAM