Polk Audio® Atrium SUB100™ Gray 10" Outdoor Passive Subwoofer (atrium-

Capacitive Coupling Technology and Dual 2-inch voice coils reproduce bass from both stereo channels, producing more power in low frequenciesHoused in a molded and sealed acoustically ideal resin enclosure and marine-certified with IPX66 ratingAtrium Sub100Heavy-duty bass performance and heavy-duty all-weather durabilit