Polk Audio TSi400 3.0 Home Theater Speaker Package (Black)

Model: WWS-400-30 UPC: 091037818058 Item: 159912

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104 E Vine St.
Hatfield, PA 19440
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Product Information

This Polk Audio 3.0 Home Theater Speaker bundle includes:

  • TSi400 4-Way Tower Speaker with Three 5-1/4" Drivers - Pair (Black)
  • CS10 Center Channel Speaker with Dual 5-1/4" Drivers - Each (Black)

TSi400 Tower Speakers

Step down in size from the TSi flagship TSi500 when you want big impact in a smaller room. Here, three smaller drivers in the classic TSi narrow baffle design make more efficient use of power, while delivering the same wide, realistic soundstage and deep, musical bass response you desire.


  • 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 movie’s 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 to the TSi Series, so you can build a small home theater for a reasonable price without sacrificing performance. Its innovative angled-top design gives you more placement flexibility; with perfect aiming whether you place it on top of your TV or below the screen.


  • Achieve perfect imaging with more placement flexibility because the angled CS enclosure flips to accommodate TV-top or below-screen placement.
  • Durable, efficient, and tuned with the Dynamic Balance process, TSi Series polycarbonate cones produce smooth, natural sound.
  • Surprisingly deep, musical bass response thanks to the 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.

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