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

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 cone
• Dual 1-inch anodized aluminum dome tweeters for wide, clear stereo imaging
• PowerPort® bass enhancement for deeper, distortion-free low-end sound
• Single/dual speaker mode switch for flexible stereo playback
• Weatherproof, military-grade durability (ASTM D5894-UV Salt Fog, Mil-Std 810)
• Speed-Lock™ mounting system for easy installation and angle adjustments
• Paintable, rustproof grille for seamless outdoor integration
• Horizontal or vertical mounting options
• 5-year manufacturer warranty for long-term reliability

Specifications: