Polk Audio TSi300 Floorstanding Speakers (Pair) with PSW10 10-Inch Powered Subwoofer & CS10 Center Channel Bundle (2) Tsi300's:Equipped with two 5.25-inch diameter bi-laminate organic fiber cone woofers / Equipped with 1-inch silk/polymer composite Dynamic Balance dome tweeter (1) PSW10 10-inch subwoofer in black with built-in high-current amplifier for big bass (1) CS10 Center Channel Speaker that carries the load of over 50% of a movie's effects and audio, from directional cues to dialogue Create an amazing sound system that will take your viewing experience, movies, games and TV to a higher level of enjoyment