Price Match Guarantee Polk Audio Atrium SDI 8 Indoor Outdoor Speaker (Each) Enjoy enhanced-quality sound outdoors with the black Polk Audio Atrium8 DSI All-Weather Outdoor Speaker. It features a single/dual input switch, which allows you to use it either as a virtual stereo speaker or as part of a traditional L/R stereo pair when used with a second speaker. It can output up to 125W of continuous audio and is designed to withstand UV rays, salt-fog, extreme temperatures, and heavy rain. It includ