Timbre-Matched Bipole/Dipole Surround Loudspeaker
11 3/8" W x 12" H x 7 7/16" D
28.89cm W x 30.48cm H x 18.89cm D
Full Fidelity and High Performance
The F/XiA4’s engine is the dual Dynamic Balance® 1-inch dome tweeter design and a 5 1/4-inch Dynamic Balance driver that produces believable real-life effects at prodigious volumes. The selectable bipole/dipole function allows you to configure it to your space and 7.1 systems. The smaller cabinet enables it to fit in more places.
The F/XiA4 Features:
The trapezoidal shaped cabinets aim the drivers and tweeters in opposing directions to produce a more realistically diffuse wavefront and wide, lifelike imaging of surround sound. Keyhole slots make mounting a snap.
With the flip of a switch, our dipole/bipole circuitry changes the soundfield from direct to indirect radiation patterns enabling you to place the surround speaker beside or behind you depending on your listening room setup.
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 F/XiA 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.
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 offer 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.
|Type||Dynamic Balance silk polymer composite dome tweeters|
|Mid / Woofer|
|Diameter||5 1/4" (13.34cm)|
|Type||Dynamic Balance driver with polymer composite cone and rubber surround|
|Total Frequency Response||50Hz-27kHz|
|Upper -3dB Limit||26 kHz|
|Lower -3dB Limit||60 Hz|
|Nominal Impedance||8 ohms|
|Recommended Amplifier Power||20-125 watts per channel|
|Inputs||5-way binding posts|
|Width||11 3/8" (28.89cm)|
|Depth||7 7/16" (18.89cm)|
|Mid-High Array Enclosure Type||Vented|
|Mounting Options||Integrated keyhole slot for wall mounting|
|Product Weight (each)||9 pounds|
|Unit of Measure||Pair|
|Total Shipping Weight||25 pounds|
|Speaker Warranty||5 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.
View all Professional Reviews
"In the deer-chase scene early in I Am Legend, the zooming, roaring, and screeching of Will Smith's Mustang dominated the aural landscape, echoing impressively through the empty canyons of midtown Manhattan. And the sound effect of clattering hooves managed to track the fast-moving deer without sharply hot-spotting one or another speaker."
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Frequently Asked Questions
- What speaker should I buy for the surround channel?
- Why are my speakers distorting and popping?
- What wire should I get? What gauge?
- How do I choose between all the different home audio speakers?
- What is dipole and bipole and how are they different?
- How long is the warranty on Polk loudspeakers?
- How do I obtain service for my loudspeakers?
- Why did my speakers break?
- Where do I place the surround speakers in my room for the best performance?
- What type of speaker wire should I use?
- How do I get the little plastic inserts out of the binding posts so I can use banana plugs?
- What is the Klippel Distortion Analyzer?
- Choosing Home Audio Speakers
- Speaker Types
- Home Audio Speaker Placement
- Optimizing the Sound of Your Room
- Surround Processor/Receiver Set-Up
- How Do I Prevent Damaging My Speakers Again?