Center channel speakers do what?

The center channel speaker supplies the dialog and many of the surround effects in a surround sound system. Center channel speakers use only tweeters and mid-range to mid-bass drivers to create voices and sound effects in a home theater setting. Center channels leave the low-frequency information to subwoofers or left and right speakers. Center channel speakers are also, in most cases, magnetically shielded so they do not interfere with the video display