Center Channel
The speaker used in a surround-sound setup that is responsible for reproducing vocals and other centrally located sounds. The speaker is generally magnetically shielded to prevent interference with CRT based screens. While many will argue that a center channel speaker is not necessary, in cases with a lot of off-axis movie watching, it greatly helps keep dialogue centered on the screen. Care should be taken to keep the center channel timbre matched to that of the front speakers, which is important to provide a smooth transition as sounds move from one speaker to the next.