Big, High Quality Sound. A workhorse when it comes to filling large spaces with the kind of big, lifelike high-quality sound for all your outdoor entertainment. Built to withstand the elements, which means you’ll be enjoying great performance for years to come. DYNAMIC BALANCE TECHNOLOGY This patented technology analyzes the speaker’s entire electro-acoustic and mechanical system for improved material selection and more efficient geometry. Install your Atrium 6 Speakers in any large or open space—by a pool, in the patio, the sunroom, halls or office areas. They will deliver EXCEPTIONALLY GREAT SOUND, OUTDOORS OR INDOORS, no matter where you set them up Equipped with 5 1/4" Dynamic Balance driver 1" dome tweeter provides WIDER SOUND DISPERSION & SURPRISINGLY POWERFUL BASS. At 100W, frequency response is as low as 60KHz and PowerPort bass venting, CUTS THROUGH LOUD, JARRING BACKGROUND NOISES These loudspeakers come with a steeply-angled baffle design that fills expansive spaces with full-range sound that is sure to impress! GREAT AESTHETICS COMBINED & BEAUTIFUL LIVELY SOUND makes these speakers a preferred choice among music lovers worldwide Atrium's one-click SPEED-LOCK MOUNTING BRACKET Offers EASY, ANTI-SLIP ONE-HANDED INSTALLATION. Mount speakers vertically or horizontally, to deliver the best sound in a variety of situations. Simply mount the swiveling C-bracket, adjust the angle and fasten the speaker with a click. THE SPEAKER FOR ALL SEASONS It’s rugged durability, high environmental endurance & superior quality has helped Polk Outdoor Speakers win the all-weather Certification. They EFFORTLESSLY WITHSTAND EXTREME TEMPERATURES AND HEAVY RAIN year after year.