I only had a few minutes last night to get them hooked up and play them, and I'll be playing much more today. So far, these speakers have blown me away. I mean, I trusted that they would sound good from all the reviews and comparisons, but these are amazing. Notice how I don't use the the exception, "for the price". These sound amazing, period. I'm not sure what Dennis includes on the demo CD he sends out with all his speakers, but I'm assuming it's some high quality tracks that really highlight the true quality of these speakers.
When Dennis says these speakers produce useful output at 34Hz, he's telling the truth. This might be one purchase where I don't feel any remorse
As far as those in-wall speakers go, I'm sure you can get something MUCH better than those. Is there some reason you don't want to go with an identical set of AA's for the rears? That is what I plan to do, for now I am just going to stick with Dennis' 3.1 system (fronts, and center)