Polk Audio ATRIUM8 Atrium 8 SDI 6.5 Inch Outdoor Speaker

Take your outdoor audio to the next level with the Polk Audio Atrium 8 SDI High Performance All-Weather Loudspeaker—Polk’s flagship outdoor model built for serious sound lovers.

With a 6.5” dual voice coil driver and dual 1” aluminum tweeters, the Atrium 8 SDI delivers a broad soundstage, punchy lows, and ultra-clear highs, even across wide outdoor spaces. It’s engineered with a Single/Dual Input Switch, allowing you to use one speaker as a high-performance stereo speaker, or wire two together as dedicated left/right channels in a premium stereo pair.

Perfect for patios, pools, gardens, or even commercial venues, the Atrium 8 SDI is ready for all weather conditions, offering years of durability without compromising performance. Polk's Power Port® technology ensures bass is full and resonant while remaining tight and controlled.

Finished in sleek Black or White, this speaker fits elegantly into any outdoor setup. Whether mounted vertically or horizontally, installation is quick and secure with the included Speed-Lock™ mounting system.

For customers who refuse to settle for less than premium sound in every corner of their space, the Atrium 8 SDI is your go-to outdoor audio powerhouse.

6.5" Dual Voice Coil mid-woofer for enhanced bass response
Dual 1" aluminum dome tweeters for high-frequency clarity
Frequency response: 45Hz–27kHz for full-range audio coverage
Single/Dual Input switch for stereo or L/R channel flexibility
Power Port® bass venting for deeper, cleaner low end
8 Ohm impedance for optimized power draw and speaker output
All-weather certified—UV, salt-fog, rain, and temperature resistant
Horizontal or vertical mounting options included
Speed-Lock™ bracket system for easy, secure installation
Sold as a single speaker for versatile placement or pairing