Polk Audio Atrium 8 SDI High-Performance Outdoor Speaker with 6.5″ Driver – Black (PAIR)

Description The Polk Atrium8 SDI is a versatile, all-weather outdoor speaker designed for powerful stereo sound in any environment. Whether used as a single stereo speaker or as part of a high-performance stereo pair, it provides immersive, detailed audio for patios, decks, sunrooms, and backyards.Equipped with dual 1-inch anodized aluminum tweeters and a 6.5-inch Dynamic Balance® woofer, the Atrium8 SDI delivers crystal-clear highs, deep bass, and rich midrange clarity. The PowerPort® bass venting system enhances low-end response by adding 3dB of powerful, distortion-free bass, perfect for outdoor listening.Built to withstand the elements, the Atrium8 SDI meets and exceeds military-grade weather resistance standards (ASTM D5894-UV Salt Fog, Mil-Std 810), making it resistant to UV rays, salt, and extreme weather conditions. Whether mounted horizontally or vertically, its durable polypropylene cabinet ensures long-lasting performance in all climates.Installation is simple and secure with Polk’s Speed-Lock™ mounting system, allowing for quick, one-handed setup and precise speaker angling. Its switchable single/dual input mode offers flexibility in stereo playback, making it a perfect fit for both smaller spaces and larger outdoor audio setups.Features:6.5-inch Dynamic Balance® woofer with aerated polypropylene coneDual 1-inch anodized aluminum dome tweeters for wide, clear stereo imagingPowerPort® bass enhancement for deeper, distortion-free low-end soundSingle/dual speaker mode switch for flexible stereo playbackWeatherproof, military-grade durability (ASTM D5894-UV Salt Fog, Mil-Std 810)Speed-Lock™ mounting system for easy installation and angle adjustmentsPaintable, rustproof grille for seamless outdoor integrationHorizontal or vertical mounting options5-year manufacturer warranty for long-term reliabilitySpecifications:FeatureSpecificationBrand & ModelPolk Atrium8 SDISpeaker TypeOutdoor LoudspeakerWoofer6.5″ Dual Voice Coil Dynamic Balance® DriverTweetersDual 1″ Anodized Aluminum Dome TweetersEnclosure TypeMineral-Filled Polypropylene CabinetShapeRectangularMounting Type180° Speed-Lock™ Mounting SystemAvailable OrientationsHorizontal / VerticalTotal Frequency Response45 Hz – 27,000 HzNominal Impedance8 OhmsSensitivity (1W @ 1m)91 dBRecommended Amplifier Power20W – 100WWeather ResistanceYes (Military-Grade Durability)Paintable GrilleYesSpeaker Inputs(2) Pair of Switchable Single/Dual 5-Way Binding Posts (Gold-Plated)Dimensions (H × W × D)12.875″ × 8.5″ × 9.188″ (32.7 cm × 21.59 cm × 23.34 cm)Weight9.7 lbs (4.4 kg)Included AccessoriesSpeed-Lock™ Mounting BracketWarranty5-Year Manufacturer Warranty