i have a decent sized room, couch is in the middle then it goes back out to the kitchen (no rear wall) - where should i be placing my qs8's? should they be directly behind my couch, off to the side? at a slight angle behind the couch? ear level aligned with couch pointing straight at me? angled inward ear level near the wall as i have no rear wall? here are some pics of the room to give you an idea, please let me know!

http://www.developer10.com/users/mike/pics/index.php?cat=55