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


Center Channel Speaker

Available Finishes:

Center Speakers That Give Everyone A Front Row Seat

The CS175i offers high performance at a great price.

Originally optimized for use with the small RT15i front speaker, the CS175i has proven itself ideal for a wide range of small home theater set-ups. Its superb off-axis clarity and high dynamic range make the CS175i arguably the highest performance economy-priced center speaker on the market, with smooth, neutral response and high efficiency.

The CS175i features:

  • Magnetically shielded for safe placement on or near your TV without fear of picture interference
  • Low profile design for unobtrusive placement
  • Dynamic Balance Driver maintains wide horizontal dispersion so that every listener in the room hears clear, detailed sound -- no off-axis dead spots
  • Improved fluid cooled silk dome tweeter for detailed highs
  • Timbre matched to other Polk speakers for seamless, lifelike imaging
  • Available in Black finish to match most TV cabinets
  • Gold-plated 5-way binding post inputs for the most secure wire connections

A great Center Channel Speaker is a critical component of any home theater system. It could be the hardest working speaker in any system because it delivers over 50% of a film's soundtrack information: dialog, effects, music... Everything is anchored to the screen image by your center channel's performance. That's why you need a serious Center Channel Speaker for your serious home theater.

Driver Complement

Diameter3/4" (1.91cm) 
TypeDome tweeter, shielded 
Mid / Woofer
Diameter5 1/4" (13.34cm) 
TypeDynamic Balance® driver, shielded 


Total Frequency Response55Hz - 22kHz 
Upper -3dB Limit20 kHz
Lower -3dB Limit60 Hz
Nominal Impedance8 ohms
Efficiency89 dB
Recommended Amplifier Power10 - 100 watts per channel
InputsGold-plated 5-way binding post 


Cabinet Dimensions
Height6 3/8" (16.19cm) 
Width16 3/4" (42.55cm) 
Depth8 1/4" (20.96cm) 


Unit of Measureeach 
Total Shipping Weight16.00 pounds


Speaker WarrantyLimited, 5 years parts and labor 

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.

CS175i Media

CS175i Literature

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CS175i Accessories