Center Channel

This product is a vintage Polk model and is not available for sale, but it may still be available in some stores as a closeout or used product. The following text is taken from the original sales brochure for this product and does not reflect current availability. If you happen to have any question or concerns about this product, or any other Polk Audio product, feel free to contact our Customer Service Department at 1-800-377-7655 Monday - Friday, 9am - 5:30pm EST


Two-way Center Channel Loudspeaker

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Home theater takes on a new dimension.

The CS350 is the right choice to match with any main Polk speaker that uses the 1" Tri-laminate dome tweeter, particularly the large, high output models. Its tremendous power handling and high SPL capability make the CS350 the ideal choice for people who like to listen at life-like levels.

  • Magnetically shielded for safe placement next to TVs without picture interference
  • Low profile design allows unobtrusive placement on top of TVs
  • Dynamic Balance drive units ensure correct timbre matching to other Polk speakers for seamless, life-like imaging
  • Clear, detailed highs from Polk's Tri-laminate dome tweeter made of polymer with vapor deposited micro-layers of stainless steel and aluminum
  • Angled cabinet allows speaker to be pointed upward when placed in a low position (such as on a cabinet shelf under the TV)
  • Non-metallic driver basket for the best possible magnetic shielding
  • Fluid cooled tweeter provides the high power handling essential for center channel speakers
  • 5-way binding post input terminals

The Center Channel Loudspeaker:

Whether you're assembling a new home theater system or upgrading an existing one, to experience the full potential of Surround Sound you will need a center channel loudspeaker.

Contrary to popular opinion, the center speaker is not just for reproducing dialog. Since all on-screen action, including explosions, gunshots and sound effects as well as dialog, must be faithfully reproduced and anchored to the TV screen, not just any speaker will do.

Here's a checklist of things to look for in a center channel speaker.

Designing a speaker to address all these criteria is a tall order. How do you build an uncolored high performance speaker capable of handling lots of power, magnetically shield it and then package it into a compact, unobtrusive enclosure? By applying the latest technological advances in materials and measurement to an understanding of people's needs, Polk has done exactly that in three new center channel loudspeakers. The Polk Audio CS150, the CS250S and the CS350LS.

Driver Complement

Diameter1" (2.54cm) 
TypeDynamic Balance Tri-laminate dome tweeter 
Mid / Woofer
Diameter4 1/2" (11.43cm) 
TypeDynamic Balance 


Total Frequency Response40Hz - 26kHz 
Upper -3dB Limit25 kHz
Lower -3dB Limit60 Hz
Nominal Impedance8 ohms
Efficiency91 dB
Recommended Amplifier Power10 - 250 watts per channel

Amplifier Specs

Amplifier Type


Cabinet Dimensions
Height6 1/2" (16.51cm) 
Width26" (66.04cm) 
Depth11" (27.94cm) 

Specifications, dimensions and features subject to change without notice. For more information call us at 1-800-377-7655 (USA and Canada). Outside of North America call +1 (410) 358-3600.

CS350 Media

CS350 Literature

Want to know more? Want to dig just a little deeper to learn about this product? Here's a list of source material that will give more detail, other perspectives, and answer questions you may have.

CS350 Accessories