The Yamaha NS-C444 is a center channel speaker with dual 5" polymer-injected mica diaphragm woofers and a 1" aluminium dome tweeter, which is paired with a waveguide horn for enhanced directivity to the listening area. When paired with your amplifier or receiver, the NS-C444 will primarily produce dialogue, while the rest of your speakers create the ambient sound effects. This helps enhance the clarity of dialogue when watching a movie or television program.