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Polk FXiA4 Black

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$719 RRP $919

Full Fidelity and High Performance.

The FXiA4's engine is the dual Dynamic Balance® 1 inch dome tweeter design and a 5.25 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.

Key Features
- Switchable between Bipole and Dipole operation
- 5.25" Dynamic Balance driver with polymer composite cone and rubber surround
- 2x 1" Dynamic Balance silk polymer composite dome tweeters
- Anti-diffraction grilles produce a lifetime of reliable sound
- Black laminate finish

Dynamic Balance®

Proprietary Polk Audio technology eliminates distortion-causing driver and system resonances, so all you hear is high-quality sound.

Cascade Tapered Crossover

Innovative crossover eliminates comb filtering and beaming for higher quality audio and a more expansive sound stage.

Trapezoidal Shaped Cabinets

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.

Bipole / Dipole Circuitry

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.

Acoustic Resonance Control®

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

Klippel Motor Optimisation

Laser measurement technology ensures a smooth excursion path at both ends of the volume spectrum for uniform performance at all volumes.

Anti-Diffraction Grille

Computer modelled for a precision fit and enhanced good looks - and made to minimise sonic interference.

Dual Gold Plated 5-Way Binding Posts

Perfect for easy setup, they ensure the most direct, efficient, and loss-less connection possible.


Compatible with the entire Polk Audio RTi Series for seamless blending from speaker to speaker in multi-channel systems.

User Manual (PDF, 1.57MB)

More Information
Model Number FXIA4-BLACK
RRP 919.00


Bass/Midrange Driver: 1x 5.25" (13.34 cm) Dynamic Balance driver with polymer composite cone and rubber surround
Tweeter Driver: 2x 1" (2.54 cm) Dynamic Balance silk polymer composite dome tweeter
Driver Enclosure Type: Acoustically Tuned Vent

Speaker Inputs: Dual 5-way Binding Posts - Gold Plated
Total Frequency Response: 50 Hz - 27 kHz
Nominal Impedance: 8 ohms
Sensitivity (1 watt @ 1 meter): 89 dB
Recommended Amplifier Power Per Channel: 20 - 150 watts

Height: 30.48 cm
Width: 28.89 cm
Depth: 18.89 cm

Weight: 4.08 kg

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5 Years
All Polk speakers include a 5 Year Australian warranty.

If you experience any issues with this product please don't hesitate to contact us.
How much does delivery cost?
Nothing! We offer free post on all orders to anywhere within the Australian mainland and Tasmania.

Can I pick up my purchase from your store?
Yes. You can usually pick up your order from one of our stores. We recommend that you contact us first to ensure your order is ready for collection.

What happens if I'm not happy with my product when it arrives?
We offer a 30 day 100% satisfaction guarantee on all of our products! If your order arrives damaged, faulty or not quite as you expected, please contact us and we will do everything we can to fix the situation.

Please visit our FAQ page for answers to other frequently asked questions or contact us if you have any other questions or comments.