My speakers are, LaScala's ll base bins 9.5' centered slightly towed in & 6'' of the rear wall, pointing just to the left of my seating. A Altec 311-60 sitting on top of a granite slab with a little more direction towards my ears, sitting 10' back. I just added a Fostex 925a this week & still finding the sweet spot. Man that tweeter made everything blend a whole lot sweeter in my setup.
Now I'm in the market for a waveguide for the Fostec.