The 3.6's will also benefit by the extra couple of inches elevation the granite slabs will provide. The optimum listening position seems to be (for me) near the midrange driver. Most chairs (mine included) are a little too high although a little extra distance between you and the 3.6's will help. I would plan on at least 10 feet between you and the 3.6's. Also,placement away from the back walls helps avoid any midbass emphasis - although I don't have too much problem with one of mine placed near a back wall.
Good luck and experiment lots with positioning - not easy with these big lugs....
Rich
Good luck and experiment lots with positioning - not easy with these big lugs....
Rich