Thanks, Jeff. I think it's great that you still post such good information here, even though you've left (though I guess you're still an R-972 owner, right?).
Now a Trinnov question... I'm wondering how much Trinnov magic I can expect with my room set-up:
7.1, close to symmetrical, with LCR speakers fairly well placed, though the LR angles are not as wide as would be ideal. The primary listening location (couch) is about 20 feet away, and the room isn't wide enough to get the LR speakers anywhere close to 22.5 degrees out. The LR have their tweeters at about ear level, and the C is a few feet higher, above the TV.
The bigger issues are with my surrounds and rears. My surrounds are well forward of and above our couch - maybe 8 feet forward and about 5 feet above. The rears are about two feet behind and two feet up.
All the speakers are monopoles, and none are toed in to the listening spot (nor can they be - they are mostly in-wall, except the surrounds, which are on-wall, and none of them are directable).
I doubt this setup will be ever be close to ideal for true 7.1 sound, even with Trinnov spatial correction. But I am thinking that Trinnov should be able to do quite a bit with 5.1 sound, using the rear surrounds to pull the surround sound back several feet.
Is that a reasonable expectation?
For those curious, the speakers are all from Axiom Audio. LR are M22s, center is VP100, surrounds are M0s, and rears are M2s. All are in-wall except the M0s, which are on-walls. Right now, I'm driving all of these with an Outlaw 1070.