Theater sound has not been about creating a larger stereo image since the 70s. Surround sound is about trying to put the viewer into the scene with sounds appearing to come from all around like in real life.
The center channel is not to widen the stereo image it is to lock the position of dialog with wide theater or home seating. It is not a simple left/right summation. For one or two this is why you can eliminate the center and have good results but still need the surround channels for the intended experience.
The center channel is not to widen the stereo image it is to lock the position of dialog with wide theater or home seating. It is not a simple left/right summation. For one or two this is why you can eliminate the center and have good results but still need the surround channels for the intended experience.