It's not a question of music vs. movies. It's a question of how many discrete channels there are. If you have no center signal, well, you don't need a center speaker. If you have a real center channel signal, you cannot split it to the L/R and hope to recover it properly as a phantom center.
Of course, if you do the center channel poorly, it can be worse than not but that's not an issue of design or theory but of compromise.
Kal
Of course, if you do the center channel poorly, it can be worse than not but that's not an issue of design or theory but of compromise.
Kal