Polk Audio TSi100 3.0 Home Theater Speaker Bundle (Black) This Bundle Includes: (1) Pair of Polk Audio TSi 100 Bookshelf Loudspeakers, Black, and (1) Polk Audio CS10 2-Way Center Channel Loudspeaker, Black Small in size, big in performance, the TSi100 is a great speaker to use for wall-hanging surround speakers in a TSi Series home theater (heavy duty wall-hanging brackets are built right in) Surprisingly deep, musical bass response thanks to our critically tuned flared port venting system, which minimizes port noise ("chuffing") and smooths the turbulence of port air flow, to reveal big, full-bodied bass that blends effortlessly with the speaker's overall dynamics The CS10 ensures every seat in the house hears a prime performance Featuring angled CS enclosure flips for perfect aiming and more placement flexibility, this workhorse speaker delivers clear, warm and realistic sound from above or below your TV screen