I have box speakers that are out of the box with wall to wall and floor to ceiling staging... Caravelle's they are. Stand mounted in a room that measures 21.5 by 27 by 9. The way to achieve this performance is with resonance grounding a method of vibration control that does not squander the dynamics like that of bearings and sand and rubber bladders or carbon fiber or plastic or mdf or for that matter flat feet. This method is applied to all my components as well as to some of the room boundaries.
Tom
Tom