Price Match Guarantee Polk Audio Atrium8 SDI All-Weather Indoor/Outdoor Speakers (4 Speaker Bundle) BUY Bundle of 4 Speakers and SAVE Enjoy enhanced-quality sound outdoors with the Polk Audio Atrium 8 DSI All-Weather Outdoor Speaker. Polk Audio Atrium8 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. Polk Audio Atrium 8 Outdoor can output up to 125W of continuous audio and is designed to withstand UV rays, salt, fog, extreme temperatures, and heavy rain. Atrium 8 includes mounting bracket and hardware. Polk Audio Atrium all weather outdoor speakers can be mounted either horizontally or vertically. This Polk Audio Bundle Includes 4 Atrium8 SDI Outdoor Speakers. Product Highlights: All-weather enclosure One 6-1/2" woofer Two 1" aluminum dome tweeters Tweeter placement is designed for better stereo separation in single-speaker setups PowerPort® technology for bett