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 7"
polymer composite woofers. Two 7" 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.
Polymer Composite Midranges: The speaker has one 6-1/2"
polymer composite midranges for smooth wide-range response with low distortion.
For high performance durability, the midrange 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 tweeter also features low
viscosity ferro-fluid cooling with a heat sink on the Neodymium magnet for
superior heat dissipation, power handling and reliability.
speakers are magnetically shielded, allowing you to place them near your
television without distorting the picture.
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,
Dual 5-Way Binding
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
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
20Hz-27kHz and the -3dB frequency response is 35-26kHz.
Width: The main body of the speaker is 8.6875" wide but the
speakers attached feet extend beyond each side of the speaker, giving the
speaker and overall width of 10.6875".