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Polk Audio CSI A4 Black Center Channel Loudspeaker - CSIA4

Abt Model: CSIA4BK | UPC Code: 747192118471
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Product Details

Polk Audio CSI A4 Black Center Channel Loudspeaker, Model CSIA4BK

Center Channel Speakers easily carry the 50+% of center channel info delivered in multi-channel sources. So The CSi A4 has an aimable cabinet to give you placement flexibility and finer sound-tailoring for your high performance home theater system.The CSi A4 incorporate our latest Dynamic Balance Cone drivers and 1-inch tweeters. You're assured classic Polk performance in a design that speaks to today's high-end home décor. True performance art.


  • Latest generation of Dynamic Balance® polymer composite drivers for smooth wide-range response with low distortion
  • 1-inch Silk/Polymer Dome Tweeter delivers smooth response and better detail
  • Magnetic shielding for safe placement near video sources
  • All-MDF construction creates an acoustically inert cabinet
  • Acoustically inert stamped driver baskets
  • Floating anti-diffraction grilles minimize grille diffraction for spacious, 3-dimensional imaging
  • Neodymium magnet,low-viscosity ferro-fluid cooling, and a heat sink on the back of the magnet, create better power handling and reliability
  • Dual, bi-ampable gold-plated 5-way binding postinputs (with wide holes for large-gauge bare wire connections) for the most secure connections and the most versatile wiring applications
  • Butyl rubber surrounds for high performance durability


Driver Complement

  • Mid/Woofer
    • 2 - 5-1/4" Diameter (13.34cm)
    • Polymer Composite Dynamic Balance with rubber surround
  • Tweeter
    • 1 - 1" Diameter (2.54cm)
    • Silk Polymer Dome Tweeter


  • Overall Frequency Response: 55Hz-27kHz
  • Lower -3dB Limit: 65 Hz
  • Upper -3dB Limit: 26 kHz
  • Nominal Impedance: 8 ohms
  • Recommended Amplifier Power: 20-180 w/channel
  • Efficiency: 89 dB
  • Inputs: 5-way binding posts
  • Enclosure Type: Vented with dual PowerPort & single Arc Port

Approximate Dimensions:

  • Depth: 8-3/4"
  • Height: 6-7/8"
  • Width: 20"

Approximate Weight:

  • Shipping: 20 lbs

Warranty Information:

  • Manufacturer's Warranty (authorized online retailer): 2 years parts and labor
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Key Features
1 " Silk/Polymer Dome Tweeter/ Dual 5-1/4 " Mid/Woofers/ Magnetic Shielding/ All-MDF Construction/ Acoustically Inert Stamped Driver Baskets/ Floating Anti-Diffraction Grilles/ Dual Bi-Ampable Gold-Plated 5-Way Binding Post Inputs/ Black Finish/ Sold As A Single
More reasons to buy the Polk Audio CSIA4 from Abt Electronics
  • Abt.com is an authorized dealer (Learn More).
  • The Polk Audio CSIA4 is Brand New.
  • The Polk Audio CSIA4 Ships in a Factory Sealed Box.
  • Abt ships this product for free!
Enclosure TypeVented with Dual Powerport & Single Arc Port
Impedance8 ohms
Magnetic ShieldingYes
Sensitivity89 dB
Speaker TypeCenter Channel
Tweeter Size (inches)1"
Woofer Size (inches)2 - 5 1/4 in


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