In-ceiling speaker placement

[siberian]

Hi all, nothing to intense here, just finishing up my dual-purpose office/hang out room and am looking at putting in a pair if Definitive Technology UIWBP/A speakers for rear-channel/music listening. The front will be (flamesuit on) my old Bose Accoustimass cubes from years ago, gotta save money somewhere and I'm already into my distributed A/V wiring for around $2500.

The main question is, whats the best placement for these rear speakers, looking more for some sort of formula I can use in their placement or, failing that, some general advice. My current plan is to put them about 2 feet off each wall in the corners.

The speakers will be in these two corners:

http://www.johnandmelissa.com/pictures/officeremodel/IMG_3534

TV will be near where the photo was taken from so you can get an idea of the setup. Not looking for perfection, I just want to avoid any major pitfalls. I know its not the best orientation but this room is primarily an office that we will watch movies in, hang out etc.

Thanks folks!

Also, pics of my A/V distro wiring at:

http://www.johnandmelissa.com/pictures/distributedav

John-

[David Meek]

John, lacking better information, I'd go with placement like that of standard surrounds (somewhat similar to what you are looking at). Specifically, 2 feet of clearance from the back wall and at least that from the side walls. You won't get the best soundstage from recessed units (wall or ceiling), but like you said, it's "primarily an office". Hopefully your speakers have steerable tweeters...?