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 two 6-1/2" polymer composite woofers 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. The tweeters use a heat sink on the Neodymium magnet for superior heat
dissipation, power handling and reliability.
Acoustically Inert Cabinets:
Each speaker cabinet features all-MDF construction with extensive internal
bracings that virtually eliminate sound-muddying resonance.
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,
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
Shielded: Each speaker is magnetically
shielded, allowing you to place it near your television without distorting the
Adjustable Leveling Spike Feet:
The adjustable leveling spike feet mounted on the stabilizer bars provide
stability on any type of flooring.
Frequency Response Note: The
overall frequency response is 30Hz-27kHz and the -3dB frequency response is
Dimension Note: The main body
of the speaker is 7.767" wide. The stabilizer bars extend beyond each side
of the speaker, giving the speaker an overall width of 10.953".
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