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Polk Atrium 6 - Pair Weatherproof Outdoor Speakers Experience high-performance, lifelike sound in all your outdoor spaces with the Polk Atrium 6 weatherproof outdoor speakers. Built to withstand the elements, these speakers deliver exceptional audio quality for years of outdoor entertainment. Key Features 5 1/4-inch (13.34 cm) long-throw aerated polypropylene cone driver with butyl rubber surround for deep bass from a compact design 1-inch (25.4 mm) anodized aluminium dome tweeter with rubber surround and neodymium magnet for smooth, powerful high-frequency response Patented water-resistant PowerPort bass venting adds 3dB of realistic, musical bass output Broad coverage baffle design maximises mid- and high-frequency dispersion over a large area without sacrificing detail Durable mineral-filled polypropylene cabinet with moulded-in bracing for weather resistance and superior sound quality Patented Dynamic Balance and Klippel optimisation technologies eliminate driver and tweeter artefacts for realistic sound at all volumes Polk all-weather certified, exceeding ASTM D5894-UV Salt Fog, Mil Standard 810 Immersion, and Mil-Std 883 Method 1009.8 for salt and corrosion resistance Aluminium grilles and bracket with stainless steel and brass hardware ensure no rust Gold-plated 5-way binding posts provide secure and efficient hookups Available in durable, weatherproof black or white paintable finishes Specifications Driver Size: 5 1/4-inch (13.34 cm) long-throw polypropylene cone Tweeter Size: 1-inch (25.4 mm) anodized aluminium dome Enclosure: Mineral-filled polypropylene with moulded-in bracing Certifications: ASTM D5894-UV Salt Fog, Mil Standard 810 Immersion, Mil-Std 883 Method 1009.8 Hardware: Aluminium grilles and bracket, stainless steel and brass What's in the Box Pair of Polk Atrium 6 Weatherproof Outdoor Speakers Mounting brackets and hardware All Polk products are manufactured using premium materials and advanced techniques, undergoing rigorous quality tests including drop testing, extreme signal response, and UV & salt exposure testing. Polk loudspeakers are built to deliver outstanding performance for a lifetime.