Polk Audio CSi A4 Center Channel Loudspeaker

Polk Audio Updated: 2008-11-16 RSS
Polk Audio CSi A4 Center Channel Loudspeaker

High Performance Front and Center
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.


* The CSi A4 features the 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.
* Gold-plated 5-way binding postinputs (with wide holes for large-gauge bare wire connections) for the most secure connections.
* Butyl rubber surrounds for high performance durability

Driver Complement
Midrange: 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

Cabinet Size: 6-7/8" H x 20" W x 8-3/4" D (17.46cm H x 50.80cm W x 22.23cm D)
Enclosure Type: Vented with dual PowerPort & single Arc Port