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Polk Audio Atrium 8 SDI Outdoor Speaker

Experience unmatched outdoor audio with the Polk Audio Atrium 8 SDI Outdoor Speaker. Engineered for durability and exceptional sound in any weather.


Introducing the Polk Audio Atrium 8 SDI Outdoor Speaker, the flagship model designed for all-weather performance with unparalleled sound quality. Whether it’s a single high-performance stereo loudspeaker or part of an L/R pair, the Atrium 8 SDI brings the rich, detailed sound you love outdoors to any space around your home.

Engineered for Superior Sound

Featuring a 6.5″ driver, dual tweeter array, and PowerPort® Bass Venting, the Atrium 8 SDI delivers extraordinary bass response and crisp, powerful vocals without distortion. Enjoy space-filling sound in your porch, sunroom, or deck, thanks to Polk’s patented water-resistant technology and anodized aluminum tweeter domes for midrange clarity.

Designed to Endure

Built to withstand the elements, the Atrium 8 SDI exceeds industrial and military specifications for environmental endurance. Its all-weather certification ensures rich, lifelike sound no matter the weather, making it the perfect addition to any outdoor area.

Easy Installation with Speed-Lock™ Mounting

The Speed-Lock Mounting System allows for easy, secure one-handed installations, simplifying the setup process and ensuring your speakers are perfectly angled for optimal sound projection.

Features at a Glance

  • High-performance 6.5″ driver with dual tweeter array
  • Single/dual input switch for flexible stereo configuration
  • PowerPort® Bass Venting for deep, realistic bass
  • Dynamic Balance® and Klippel Optimization for distortion-free sound at any volume
  • All-weather certified for enduring performance
  • Speed-Lock™ Mounting System for easy installation
  • 5-year warranty, engineered and designed in the USA

Enhance your outdoor living space with the Polk Audio Atrium 8 SDI Outdoor Speaker and experience the ultimate in American Hi-Fi. Proudly engineered in Baltimore, Maryland, this speaker embodies Polk’s commitment to high-quality sound and reliability.

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