Polk Audio Atrium 4 (Each)

The Polk Audio Atrium 4 is a compact all-weather outdoor speaker built to exceed military and industrial standards for weather endurance, for small to medium outdoor spaces.

Perfect for:

• Patios, decks, and pool areas
• Small to medium outdoor spaces
• Marine-adjacent installations

Key Benefits

Military-Grade Weather Testing

Exceeds ASTM D5894-UV salt fog and MIL-STD 810 immersion standards for long-term outdoor durability.

Speed-Lock Mounting

A one-click mounting bracket makes wall installation quick and secure.

Technical Highlights

• 4.5-inch Dynamic Balance woofer
• 0.75-inch anodized aluminum dome tweeter
• Gold-plated 5-way binding posts
• Marine and pool compatible

Ideal For

• Patios and decks
• Small to medium outdoor spaces
• Pool and marine-adjacent areas