Every element of the MM1 Series is meticulously engineered for high-performance sound—Dynamic Balance technology, a pivoting 1” Terylene tweeter, UV tolerant titanium plated composite cones, lightweight neodymium motor structure—plus, glass fiber formers, oversized voice coils and high-temp Conex spiders for increased power handling.
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MM522
5.25" Coaxial Speakers with Ultra-Marine Certification (Pair)
Designed to Perform
Every element of the MM Series is meticulously engineered for high-performance sound. Dynamic Balance technology, a pivoting 1” terylene tweeter, lightweight neodymium motor structure, high-temp Conex spiders and oversized voice coils for increased power handling are brought together with 2nd order high & low pass crossovers for optimum system blending—in short, your vehicle might just become your favorite listening environment.
Ultra-Marine Certified
MM1 Series have earned an Ultra-Marine Certified IP56 rating with their non-corrosive aluminum grilles and fiberglass reinforced ABS baskets, epoxy coated crossovers, water-proof inner and outer surrounds, weep holes for proper drainage and titanium-plated cones—that’s all been salt-fog, UV, and humidity tested. With MM1 Series, you get extra, long-lasting protection against virtually anything mother nature can dish out.
Designed To Go The Extra Mile
All Polk loudspeakers rely on our patented process to eliminate electro-acoustic and mechanical issues before they become a part of the finished speaker and are also rigorously tested through Polk’s Klippel distortion analyzers. MM1 Series, in addition to their IP56 waterproof rating and Ultra-Marine Certification feature Santoprene S Roll inner and outer surrounds to eliminate water, dirt and dust from entering the speaker housing. maximize throw, and withstand abuse from marine cleaning agents.
UV TOLERANT TITANIUM PLATED COMPOSITE CONES
Provides tighter, cleaner, more accurate sonic dispersion—and won’t discolor or degrade with time and heavy use.
WATERPROOF SANTOPRENE SURROUNDS
This attractive high performance material maximizes throw with its ultra-flexible, ultra-durable properties—and prevents the elements from entering the speaker unit. Plus, it combats the harsh effects of boat cleaning agents.
Advanced High- Performance Sound
Dynamic Balance Technology
Integrated Epoxy Coated Crossovers
WHY POLK ?
THE BEST SOUND FOR YOUR MONEY
50 years, hundreds of thousands of speakers, and countless awards later, we are still focused on our mission of giving you the absolute best sound for your money. Great Sound for All.
