Center Channel

CSiA4

High performance center channel speaker.

20" W x 6 7/8" H x 8 3/4" D
50.80cm W x 17.46cm H x 22.23cm D

Price

$24995each

Available Finishes:
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The High Performance Heart of Home Theater

The CSiA4 is a high performance center channel speaker for smaller rooms and challenging placement situations. It features two 5 1/4-inch Dynamic Balance® drivers, one 1-inch Dynamic Balance dome tweeter for spot-on imaging, seamless soundstage and natural sounding voices. With the asymmetric cabinet design, you gain the flexibility to placing the CSiA4 above or below the TV and aim it at your position.

The CSiA4 Features:

The proprietary curved, 6-layer DAHLI enclosure design creates the optimal shear damping for a more rigid, acoustically inert enclosure and minimal cabinet resonances. CSiA4 cabinets are designed for clean, accurate sound.

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.

Polk’s proprietary, patented Dynamic Balance technology allows our engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds.

Durable, computer-modeled, injection-molded butyl rubber surrounds suppress unwanted cone resonances for a lifetime of reliable sound.

The RTiA Cascade Tapered Crossover eliminates the comb filtering and beaming, common to multi-driver speakers, which degrades the quality of the audio and collapses the soundstage.

Patented Acoustic Resonance Control® (ARC) technology suppresses cabinet resonance that causes distortion to ensure clear and natural sound.

Beautiful curved furniture-grade hardwood veneer cabinet finishes, with sleek trim accents in black or cherry.

Computer-modeled anti-diffraction grilles enhance the good looks while minimizing sonic interference.

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.

Gold-plated, professional-style 5-way binding posts, for the most secure connection options.

All Polk products are made using the best materials and the most advanced manufacturing techniques. They pass the industry’s most exhaustive quality tests, including drop testing, extreme signal response and UV & salt exposure testing. Polk loudspeakers are built to perform for a lifetime.

Driver Complement

Tweeter
Quantity
Diameter1" (2.54cm) 
TypeDynamic Balance silk polymer dome tweeters 
Midrange
Quantity
Diameter5 1/4" (13.34cm) 
TypeDynamic Balance drivers with polymer composite cones and rubber surrounds 

Electrical

Total Frequency Response55Hz-27kHz 
Upper -3dB Limit26 kHz
Lower -3dB Limit65 Hz
Nominal Impedance8 ohms
Efficiency89 dB
Recommended Amplifier Power20-180 watts per channel
Inputs5-way binding posts 

Dimensions

Cabinet Dimensions
Height6 7/8" (17.46cm) 
Width20" (50.80cm) 
Depth8 3/4" (22.23cm) 
Product Weight (each)15.5 pounds

Shipping

Unit of MeasureEach 
Total Shipping Weight20 pounds

Warranty

Speaker Warranty5 years parts and labor (original purchaser) 

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.


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