I'm in the same situation as you. If either works, place the speakers along the wall where the ceiling is lowest, pointing toward the wall where the ceiling is highest. Think of an amphitheater -- sound projects out. placing the speakers along the 'high' wall pointed toward the 'low' wall is like listening from the mouth of a funnel. You'll likely experience more ceiling reflection that way.
Unfortunately my speaker position is the undesirable latter situation. More then one acoustic tech has suggested rotating my setup 180˚ for the above reasons. I did try it briefly, unfortunately it didn't work out from a layout standpoint. However, there did seem to be an audible improvement while they were in this position.
Unfortunately my speaker position is the undesirable latter situation. More then one acoustic tech has suggested rotating my setup 180˚ for the above reasons. I did try it briefly, unfortunately it didn't work out from a layout standpoint. However, there did seem to be an audible improvement while they were in this position.