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 6-1/2" polymer composite woofers for smooth wide-range response
with low distortion. For high performance durability, each woofer uses a butyl
rubber surround and an acoustically inert stamped driver basket.
Silk/Polymer Tweeter: The
speaker has a 1" silk/polymer dome tweeter that provides clear, detailed
highs. The tweeter uses a heat sink on the Neodymium magnet for superior heat
dissipation, power handling and reliability.
Mylar Bypass Capacitors: Mylar
bypass capacitors in the speaker's crossover network extend high frequency
response and improve detail and transparency.
Frequency Response Note: The
overall frequency response is 45Hz-27kHz and the -3dB frequency response is
Acoustically Inert Cabinet: The
speaker cabinet features all-MDF construction with extensive internal bracings
that virtually eliminate sound-muddying resonance.
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, the speaker has a front-firing
port that is tuned to suppress the internal cabinet resonance, resulting in
smooth, natural midrange reproduction.
Power Port Venting System: The
speaker has two rear-firing Power Port vents built into its two-piece 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. The center channel speaker also features a
front firing port for added efficiency and bass response.
Anti-Diffraction Grille: The
floating anti-diffraction grille minimizes 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 speaker.
The gold-plated 5-way binding posts will accept bare wire, pin connectors, spade
connectors, banana plugs, and dual banana plugs.
Reversible Design: If the
speaker must be positioned below ear level, you can turn the cabinet upside
down, allowing the drivers to fire upward.
Adjustable Kickstand: The
speaker features a unique Adjustable Kickstand for secure balance on
shallow-depth TVs and monitors.
Shielded: The speaker
is magnetically shielded, allowing you to place it on your television without
distorting the picture.