Every element of the MM1 Series is meticulously engineered for thunderous bass, enhanced sonic detail and ultra-durable construction—Dynamic Balance technology, a high excursion bump stack motor structure, glass fiber formers, multilayered and oversized voice coils, high-temp Conex spiders, a vented pole and basket structure, and integrated fuses.
MM1 Series subwoofers were conceived, designed and engineered to deliver premium audio with thunderous bass, enhanced sonic detail and ultra-durable construction. Dynamic Balance technology, a high excursion bump stack motor structure, glass fiber formers, multilayered and oversized voice coils, high-temp Conex spiders, a vented pole and basket structure, and integrated fuses combine for full-on powerful sound, no matter what vehicle you're in.
The ultra-durable, MM1 Series Subwoofers have earned their water and dirt resistant IP56 rating through non-corrosive fiberglass reinforced ABS baskets, water-proof surrounds, weep holes for proper drainage and UV-tolerant polypropylene cones. You can count on extra, long-lasting protection—that’s all salt-fog and UV tested so you can bring the bass no matter where life takes you, rain or shine.
All Polk loudspeakers rely on our exclusive 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 Subwoofers, in addition to offering IP56 waterproof rating and Ultra-Marine Certification, have waterproof Santoprene surrounds that keep the elements out and protect the subwoofer from the harsh effects of boat cleaning agents. They’re designed to keep the music playing that extra mile and beyond.