All the literature about setting speaker time delay and volume-level assumes the listener is sitting in or near one location. But what if that's nowhere near the case? What if you have people sitting in various places, ranging from the extreme side of the room, to the center, and to the rear? Or even on the floor directly in front of the screen? Since any adjustment for one listening position inherently weakens other listening positions, is it best to just throw in the towel and set all speakers to an identical distance and volume level? Theaters must face this same problem. How do they deal with it? Thanks!