Polk Audio MM652 User Guide 2 - Page 2

IP56 rating (water- and dirt-resistant) Waterproof santoprene inner and outer surrounds keep the elements out-and combat harsh effects of boat cleaning agents Non-corrosive lightweight fiberglass reinforced ABS basket Integrated coated crossovers for water-resistant protection Weep holes for tough marine and outdoor applications UV tolerant titanium plated cone Tested for salt-fog, UV and humidity MM1 is the next generation of our highly-acclaimed Mobile Monitor series-conceived, designed and engineered to deliver premium audio with unparalleled sonic detail and ultra-durable construction. It's the one crafted for full-on powerful sound, no matter what vehicle you're in. Features The Premium Upgrade Tuned for the total sonic accuracy you get in a studio monitor speaker, the MM1 Series reconfigures this high-quality sound for an on-the-go experience that's way beyond anything you'll hear in an OEM factory setup. Engineered for High-Performance Sound Every element of the MM Series is meticulously engineered for high-performance sound-Dynamic Balance technology, pivoting 1" terylene tweeter, lightweight neodymium motor structure, high-temp Conex spiders and oversized voice coils for increased power handling. Ultra-Marine Certified Featuring an IP56 rating that includes a non-corrosive fiberglass reinforced ABS basket, epoxy coated crossovers, water-proof inner and outer surrounds, weep holes for proper drainage and titanium-plated cones, you get extra, long-lasting protection- that's all salt-fog and UV tested. Dynamic Balance Technology Patented process that guides material selection through rigorous testing that identifies and cancels out unwanted resonant frequencies.