This product is a vintage Polk model and is not available for sale, but it may still be available in some stores as a closeout or used product. The following text is taken from the original sales brochure for this product and does not reflect current availability. If you happen to have any question or concerns about this product, or any other Polk Audio product, feel free to contact our Customer Service Department at 1-800-377-7655 Monday - Friday, 9am - 5:30pm EST


Surround effects loudspeaker, with switchable Bipole/Dipole operation.

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The Simple Choice For Surround Performance

The F/X500i offers an exceptional high end value in performance and sound reproduction for your mid or larger sized home theater.

The F/X500i features:

  • Dynamic Balance® composite driver for wide response and low distortion
  • Two Dynamic Balance Tri-Laminate tweeters on opposing baffles for clear, detailed highs and spacious surround effects
  • Switchable Dipole/Bipole operation for the greatest placement flexibility
  • Anti-diffraction bezel and grille systems to minimize grille-edge reflections for more open, spacious "real life" imaging
  • Acoustic Resonance Control® (ARC) Port System reduces unwanted internal enclosure resonance for utterly clear midrange reproduction.
  • Built-in wall bracket for easy wall mounting
  • Timbre matched to other Polk speakers for seamless, lifelike imaging
  • Bass response to below 80Hz assures optimum performance in discrete channel Dolby Digital (AC-3) surround systems
  • Available in Black Woodgrain or White finish
  • Gold plated 5-way binding post inputs for the most convenient and secure wire connections

Surround speakers go behind you, or to the rear left and right sides of your home theater room (depending on your seating location and room layout). They envelop you in sound, especially in today's discrete multi-channel digital world. Good surround effects add to the realism of your home theater experience, and put you and your family right in the center of the action!

What is "Dipole/Bipole"?

The more "diffuse" the surround sound field, the less the listener is able to pinpoint the action, resulting in a more realistic, enveloping surround sound experience, especially when it's necessary to mount the speakers close to the listening area. For the ultimate in rear surround, choose speakers with a choice of sound field patterns, both BiPole and DiPole. Polk's F/X300i, F/X500i and F/X1000 let you choose BiPole or DiPole at the flick of a switch depending on the speaker's placement. Place them where they look best in your home theater, and then select the pattern that provides optimum sound for you.

Driver Complement

Diameter1" (2.54cm) 
TypeDynamic Balance® Tri-laminate dome tweeters 
Mid / Woofer
Diameter6 1/2" (16.51cm) 
TypeDynamic Balance® driver, shielded 


Total Frequency Response40Hz - 26kHz 
Upper -3dB Limit25 kHz
Lower -3dB Limit50 Hz
Nominal Impedance8 ohms
Efficiency90 dB
Radiation PatternSwitchable bi-pole/ di-pole operation 
Recommended Amplifier Power10 - 150 watts/channel watts per channel
InputsGold-plated 5-way binding posts 


Cabinet Dimensions
Height15 1/4" (38.73cm) 
Width9 7/8" (25.08cm) 
Depth9 1/2" (24.13cm) 
Mounting OptionsWall mount, shelf, stand 


Unit of Measurepair 
Total Shipping Weight39.00 pounds


Speaker WarrantyLimited, 5 years parts and labor 

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.

F/X500i Media

F/X500i Literature

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F/X500i Accessories