Polk MM1242 DVC 12" Dual Voice-Coil Subwoofer with Ultra-Marine Certification

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.

• Ultra-marine certified (IP56 rated)
• Dirt & water-resistant & tested for salt-fog, UV & humidity
• Used in Automobile, Boats & ATVs
• 10" Dynamic Balance® dual voice-coil polypropylene woofer