I don't need to turn off any speakers. But then all my speakers have the same drivers and all amplifiers are identical, and they are all carefully balanced.
Often the center speaker is often an afterthought and the weakest, when it needs to be equal to the best.
Who turns center off when listening to music
Regarding 3.1 systems. When listening to music; Who deactivates the center channel via the processor?
And with surround systems who goes back to 2.1 when listening to music. Do any of the processors have presets you can you for this?