PRODUCT INFORMATION This Polk Audio 3.0 Home Theater Speaker bundle includes: TSi300 3-Way Piano Black Gloss Tower Speaker with Two 5-1/4" Drivers - Pair (Black) CS10 Piano Black Center Channel Speaker with Dual 5-1/4" Drivers - Each (Black) TSi300 Tower Speakers It's a stylish solution: Build the bookshelf style speaker into its own stand. The result is a smaller tower that takes up almost no floor space and saves you the hassle of speaker stands. In exchange you get solid efficiently stable footing and the enhanced performance of more enclosure space. Dynamics go beyond bookshelf with a wide soundstage and detailed imaging in small to mid-sized rooms. It's the tower with the soul of a bookshelf and the performance of a monster! Features Unlike other speakers in this price range TSi enclosures are constructed of extensively braced solid MDF with 3/4-inch baffles. This virtually eliminates internal resonances and damps energy-stealing vibrations for more efficient operation and more transparent sound. Polk's proprietary patented Dynamic Balance technology allows the engineers to design out distortion-causing driver and system resonances so you only hear the good sounds. Klippel motor optimization uses laser measurement technology to ensure a smooth excursion path at either end of the volume spectrum for uniform performance at both low and high volumes. All Polk loudspeakers are timbre-matched within their series designed with the same components throughout to achieve seamless speaker-to-speaker blending effects in multi-channel systems. CS10 Center Speaker Even in a smaller room theater setup the center channel speaker carries the load of over 50% of a movies effects and audio from directional cues to dialogue. Timbre-matching is important so that all the speakers in your system feature the same tonal qualities (for seamless transitions). The CS10 is a small-sized hard working high performance center channel speaker timbre-matched