Polk Audio RTi A5 Tower Speakers Pair, 2-Way

Driver technology

Dynamic balance:

  • Dynamic balance is a proprietary polk audio technology using laser imaging to determine what combination of speaker materials create the least amount of resonance.
  • Eliminating resonance in speakers results in a wide, smooth response and low distortion.

Polymer composite woofers:

  • The speaker features two 6.5" polymer composite woofers.
  • Two 6.5" woofers have the surface area of a single large woofer with the low mass and acceleration of small woofers, resulting in tighter, more accurate bass response.
  • Each woofer uses a butyl rubber surround.

Silk/polymer tweeter:

  • The speaker has a single 1" silk/polymer dome tweeter that provides clear, detailed highs.
  • The tweeter features mylar bypass capacitors in the crossovers to extend high frequency response and improve detail and transparency.
  • The also tweeter features low viscosity ferro-fluid cooling with a heat sink on the neodymium magnet for superior heat dissipation, power handling and reliability.

Magnetically shielded:

  • The speakers are magnetically shielded, allowing you to place them near your television without distorting the picture.

Enclosure design

Damped asymmetric hex laminate (dahli) cabinet design:

  • All-mdf construction with massive asymmetric cabinet bracing ensures a resonance-free enclosure for accurate sound.
  • The asymmetric design is made from a 6-layer laminate with 5 viscous layers to create the optimal shear damping (osd) system.
  • The elegant styling aside, curved cabinets not only result in a stronger, more rigid and acoustically inert enclosure, but the curved walls also produce less audible coloration from panel resonances.

Power port venting system:

  • The speaker has a rear-firing power port venting system built into its back plate for precise deep bass response.
  • This venting system allows air velocity to slow gradually, vastly reducing air turbulence, and delivering greater bass efficiency than conventional ports.

Acoustic resonance control (arc):

  • Internal cabinet resonance can impart a "Thick" character to voices. Polk's patented acoustic resonance control port system overcomes this problem.
  • In addition to the power port venting system, each speaker has a front-firing port that is tuned to suppress the internal cabinet resonance, resulting in smooth, natural midrange reproduction.

Anti-diffraction grilles:

  • The floating anti-diffraction grilles minimize grille diffraction for spacious, 3-dimensional imaging.


Dual 5-way binding posts:

  • The speaker has two sets of gold-plated 5-way binding posts connected by gold-plated jumpers.
  • Using the dual 5-way binding posts, you can bi-amp or bi-wire the speakers.

Mounting options

Adjustable leveling spike feet:

  • The adjustable leveling spike feet that can be screwed onto the bottom of the speaker's attached base provide stability on any type of flooring.
  • The spike feet adds approximately 0.875" to the speaker's overall height when screwed all the way in.

Specifications & dimensions

Frequency response:

  • The overall frequency response is 30hz-27khz and the -3db frequency response is 40-26khz.


  • The main body of the speaker is 8.375" wide but the speakers attached feet extend beyond each side of the speaker, giving the speaker and overall width of 10.5625".
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