The acoustics in my untreated multi-purpose family room are suboptimal, first-reflections probably smear the soundstage image, and the ceiling is asymmetrically vaulted. When my monitor speaker tweeters are aimed laterally and vertically directly at my ears, I experience the best soundstage at my single listening location.
Multiple people, though, simultaneously experience differences in the lateral soundstage, which therefore is neither listener-friendly nor beneficial to our hobby. The best solution for my situation, is to aim the left speaker at the center of the left seat on a three-seat sofa and aim the right speaker at the center of the right seat. This gives a relatively stable soundstage across the width of the sofa.
I also have listened intently with several vertical height positions of the speakers above the floor. My prior speakers were balanced on the mantle of our fireplace, which gave standing people a better vertical soundstage, great for parties, but seated people a diminished vertical soundstage. Positioning my present monitor speakers about 6" below ear height while seated, and pulled out from the front wall, improved the mid-range floor reflections off a thick carpet over a tile floor. There wasn't noticeable height to the soundstage. Positioning my monitor tweeters at seated ear level, and only 6" away from the front wall, gives the best vertical soundstage for my room.
