Polk CSIA6 (English Cherry)

2-way single cherry RTiA Series center-channel speaker

548399143

Ready for some changes? The CSIA6 center channel will change your current entertainment system into something with a lot more depth. Polk's tried and tested Dynamic Balance technology influences the tweeter for smooth, full response. A dual rear PowerPort® creates bass venting for superior clean, low distortion bass that you can actually feel. Acoustic Resonance Control (ARC Port) technology makes for more natural midrange reproduction. Sit back and enjoy the sonar ride. Also available in cherry.

Sold as single speaker

Front and center performance

Perhaps the most important loudspeaker in a home theater system is the center channel — because as much as 80 percent of the information in a surround soundtrack may come from there! The RTiA Series CSIA6 is all-MDF constructed, which creates an acoustically stable cabinet that doesn't interfere with the sound. Your CSIA6's anti-diffraction grilles help, too. Diffraction is a type of distortion that occurs when sound reflects off an object such as a grille frame. The re-radiated sounds smear the original sound, much like ghost images on a TV smear the picture. Sound wave reflections (diffraction), caused by grille frames, color the sound and make the speaker sound "closed in" and "boxy." Polk's technology lifts the grilles literally off the baffle area, minimizing grille-edge reflections for clearer sound and more open imaging.

Dynamic Balance®

The drivers and tweeters used in Polk home speakers feature Dynamic Balance. What's this mean? Just as an x-ray enables a physician to discover the root cause of a symptom and effect the right treatment for a cure, laser imaging allowed Polk engineers to find the right combinations of materials, geometry, and construction techniques to tune out the offending resonance. Polk calls this technology Dynamic Balance. Dynamic Balance technology produces flat frequency response, sharp detail, transparency, and an ability to play program material with wide dynamic range at life-like volume levels without a hint of strain. Clean, clear, effortless sound results.

PowerPort® brings the boom back to your living room

Really, the Polk's PowerPort® bass venting makes those King Kong movies sound almost too realistic. PowerPort greatly reduces "chuffing" or "port noise" and provides a deeper, lower distortion bass than most conventional ported or sealed designs of comparable size. Whether you know what "mylar bypass capacitors" are or not, their function serves you well. These babies are in the crossovers and extend high frequency response, resulting in improved detail and transparency.

Smooth sound with Acoustic Resonance Control (ARC)

Sound emanating from the back of the driver creates an "organ pipe" resonance at a frequency that is a function of the depth of the cabinet. This internal cabinet resonance can impart a "thick" character to voices. Polk's patented Acoustic Resonance Control port system overcomes this problem.

Video shielding protects your TV

In the past it wasn't possible to place speakers close to your TV due to possible damage from the magnetic fields inside the speaker. This limited speaker placement options, which has become more critical with today's smaller rooms and home theater applications. "Video shielded" means that these speakers can be placed in close proximity to your television without disrupting the picture or causing permanent damage.

Comparison Specifications

Recommended amplifier power: 20-200 watts/channel
Nominal impedance: 8 ohms
Tweeter: One 1" diameter, silk polymer dome
Mid/Woofer: Two 6.5" diameter, polymer composite dynamic balance with butyl rubber surround
Crossover: 2500 Hz, 2nd order
Overall frequency response: 45-27kHz
Enclosure type: Vented with dual PowerPort and single Arc Port
Magnetic shielding