Polk Audio

10" Subwoofer Ultramarine - SilverPolk's marine subwoofers have always been known for intelligent design, impressive sound, and weather resistance. The UMS108 sub continues this tradition with solid...

NMEA 2000 Compatibility Kit This NMEA 2000 Kit allows Polk's Ultra Marine Certified P1 and PA4A to be seamlessly added to your boat's onboard NMEA 2000 network, enabling control and two-way...

PRC200BC Wired Remote State of the art, waterproof and everything you need in a single remote.Features:Dot matrix positive LCD displaySurface mount or rear flush mountBlack face, chrome...

Ultramarine 7.7" Speakers - BlackPolk's Ultramarine speakers are designed to produce maximum sound in marine applications.  Featuring "Air Suspension" technology and high-temperature voice...

Ultramarine 8.8" Speakers - BlackPolk's Ultramarine speakers are designed to produce maximum sound in marine applications.  Featuring "Air Suspension" technology and high-temperature voice...