Polk Audio RTi A3 Bookshelf Speaker Pair

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: Each speaker features a 6-1/2" polymer composite woofer for smooth wide-range response with low distortion. For high performance durability, each woofer uses a butyl rubber surround.

Silk/Polymer Tweeters: 

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

Frequency Response: 

  • The overall frequency response is 40Hz-27kHz and the -3dB frequency response is 50-26kHz.

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:

  • Each 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:

  • Each 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

Wall Mounting: 

  • The Power Port back plate on each speaker has a keyhole slot, allowing the speaker to be mounted on the wall using the supplied 2-1/2" wood screws.

Magnetically Shielded: 

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