Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere.
That's because we have our own in-house Product Research team — they open the box,
verify contents, check the owner's manual, and record dimensions, features and specs.
We stay on top of new products and technologies to help people make informed choices.
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 5-1/4"
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
50Hz-27kHz and the -3dB frequency response is 60-26kHz.
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
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
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.
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