Room Treatments added, with negative effects..

Don't overlook the very interesting ideas on speaker placement from Audio Physic itself. I don't have Virgos, but I did end up with a setup essentially consistent with the AP approach. This should be your starting point, as it intends to eliminate the room as much as possible. Then you can experiment with treatments, if necessary, to deal with what's left. Check out their website.

Outlier -- that's a good system you have there. Try placing the speakers 60 degrees apart (from listening position) at a position where the Virgo toe-in is b/ween 70-72 degrees (i.e. speakers parallel, facing you, is 90d).
That's (allegedly) the Virgo system testing position. I've tried it in a rectangular room & it's good. Cheers

Hi Folks:
Thanks again for all the additional suggestions. I have the Virgos set up based on Audio Physic recommendations, although not their ultimate preferred position (which is 50% the way into the room), but rather just 25% into the room from the back wall, and 25% away from the side wall (the room is not a dedicated listening room, so I need to compromise a little). I could experiment further with the toeing though. Seating position is almost against the back wall. I'll try the side wall absorbtion suggestion when I get a chance - will need to make the panels though, as there is no wall to attach them to in the appropriate area of the side wall (a corridor on one wall, and a wall of full length windows/ curtains on the other side wall). I guess the idea there would be to minimize side echo/distortions on the sound, allowing the ear to focus on the primary/first sound waves which come directly from the speaker?? Seems reasonable, if that's the logic. I can try and experiment with tube traps later, but my room characteristics make that difficult - the door opens on the far left of the room (preventing the addition of a tube trap there because it would be an obstruction in that corner). Other far corner is bookshelves on either side of the corner (probably good defraction anyway). Near left corner is desk/PC etc, and near right corner is bed. Hence, no good places for tube traps (in corners anyway). Center of ceiling is an overhead fan, so not good for any treatments there, but I guess I could put some before or behind the fan (would absorbtion be of any use there, or would it cause more problems?) Anyway, thanks again for all the great input. Getting the room right is challenging. To answer an earlier question - I don't feel I'm trying to solve any apparent problem with the sound. Rather I just want to get the most out of my room and improve the sound if possible. The sound is absolutely amazing from my perspective - I guess I'm always trying for better though, as I'm sure we all are.
Cheers.

Bombaywalla:
I assure you that I wasn't suggesting that your advice was incorrect in any way. Consider my comments an addendum to yours, in case Outlier wanted to use Tube Traps. I've seen them placed wrongly in many rooms. Even reviewers install them wrong, as when Tom Miiller of TAS had RoomTunes in his room and wrote an article about the designer coming into his room and completely changing their position. Also,in an old issue of TAS, HP averred that the Tube Traps were helpful but that the instructions were not. Moncrieff's article is the best one so far.

Gbmcleod,

Thanks for the clarification! No damage done.