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.
Woofer Cones: Each speaker features a Dynamic Balance
polymer/mica composite mineral-filled cone. The cones are stiff and lightweight
for big sound and low distortion.
Butyl Rubber Surrounds: For a smoother response and improved
durability, the woofers use butyl rubber surrounds.
Kapton Voice Coil Former: The low-mass two-layer 25mm Kapton
Voice Coil former is lightweight for high sound output. Kapton's high melting
temperature (725°F) ensures high power handling and longer reliability.
Silk/Polymer Composite Tweeters: The 3/4" liquid-cooled,
silk/polymer composite tweeters provide clear, detailed highs. The tweeters use
Pivoting Tweeter: The tweeter pivots, allowing you to aim
it toward your listening position for better imaging.
2-way Crossover Network: The built-in 2-way crossover network
sends the appropriate frequencies to each driver for cleaner sound and better
Flat Spider: The speaker utilizes a flat spider for faster,
longer excursion linear motion.
Pole Plate Heat Sink: The speaker's pole plate heat sink
promotes better heat dissipation for superior power handling and reliability.
Woven Leads: The speaker features flexible woven leads sewn
directly into the spider for greater reliability.
Basket: The speaker is housed in a solid, acoustically
inert stamped steel basket finished in rustproof gun metal gray.
Grilles: Strong ABS plastic grilles are included. These
computer optimized grilles are based on exclusive MOMO designs.
Marine Certification: Polk speakers are marine certified,
making them a good choice for boats in fresh water, convertibles, motorcycles,
ATVs, and other applications where the speaker might get wet. Because they have
coated steel baskets and the terminals and crossover components are not covered,
we do not recommend using them in salt water environments.
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 verify what’s in the box, 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.