Polk Audio F-XiA4 Home Theater Speaker

Polk Audio

Out of stock

  • bass-reflex (ported) design
  • two 1″ silk/polymer dome tweeters
  • dipole/bipole switch
  • keyhole slot for easy wall-mounting
  • 5-way binding post terminals
  • voice-matched to Polk’s RTi tower and bookshelf speakers and CSi center channel speakers

Add the Polk FXi A4 surround speakers to your home theater system and enjoy dramatic rear-channel sound effects with your favorite movies. These cleverly designed speakers feature two tweeters aimed 45? from each other, for an ideal mix of direct and indirect sound.

Dipole/bipole operation for flexible placement

A dipole/bipole switch lets you position the FXi A4s on the rear or side walls of your home theater room ? you’ll get great results either way. If you place them behind your listening postion, set them to bipole mode for distinct, directional sound. Or set them to dipole mode for side placement, and they’ll create a more diffuse soundfield for convincing wraparound effects.

A high-tech approach to accurate sound

Polk carefully designed the drivers using laser testing to help identify and eliminate resonance points. The acoustically inert MDF cabinets fight internal vibrations that can compromise performance. It all adds up to enveloping surround sound that fully immerses you in the movie action.

Dimensions 305 × 280 × 179 mm

Driver Enclosure Type Acoustically Tuned Vent
Driver Complement • (1) 5.25″ (13.34 cm) d (Round) Dynamic Balance driver with polymer composite cone and rubber surround – Mid/Woofer
• (2) 1″ (2.54 cm) d (Round) Dynamic Balance silk polymer composite dome – Tweeter
Mounting Type Keyhole Hanger
Available Orientations Horizontal
Speaker Inputs (1) Pair of 5-way Binding Posts – Gold Plated
Total Frequency Response 50 Hz → 27,000 Hz
Nominal Impedance 8 ohms
Frequency Response 60 Hz → 26,000 Hz
Recommended Amplifier Power Per Channel 20 watts → 150 watts