Polk Audio
Polk Audio Atrium Outdoor Subwoofer
Best outdoor subwoofer for homeowners seeking deep, weather-resistant bass.
Experience powerful, deep bass outdoors with the Polk Audio Atrium Sub100. This passive subwoofer is engineered for all-weather reliability, featuring a 10-inch driver and Capacitive Coupling Technology for clear, impactful sound. Its durable molded resin enclosure boasts an IPX66 weatherproof rating, ensuring it withstands the elements. Installation is made easy with included mounting hardware and a direct burial rated cable. The built-in crossover provides independent volume control, allowing seamless integration into your outdoor audio system for enhanced entertainment.
$549.00
Owner Satisfaction
4.5
/ 5
Category Rank
2641
/ 6567
#2641 in Speakers
Price vs Category Average
-62%
Below average
Driver Size
10
/ '' Long Throw Dynamic Balance Driver
Who it's for
- Residents in climates with harsh, unpredictable weather conditions
- Design-conscious homeowners wanting high-fidelity audio without visible equipment
- Homeowners hosting large outdoor gatherings needing immersive sound
Who should skip it
- Renters or homeowners avoiding major landscaping and excavation projects
- Budget-conscious buyers preferring simple, all-in-one plug-and-play audio solutions
- Shoppers looking for an affordable, entry-level outdoor sound upgrade
Performance breakdown
Weatherproof Durability
The IPX66 rating ensures robust protection against harsh outdoor elements.
Bass Impact
The 10-inch driver delivers deep, resonant low-end frequencies for open spaces.
Installation Flexibility
Included burial cables and mounting hardware simplify complex outdoor setup requirements.
Aesthetic Integration
Paintable resin enclosure allows the unit to blend seamlessly into landscaping.
System Compatibility
Passive design and built-in crossover allow for easy multi-speaker system integration.
Security Design
Integrated eye-bolt anchors provide peace of mind for permanent outdoor placement.
Key Specs
Driver Size
10'' Long Throw Dynamic Balance Driver
Water Resistance Rating
IPX66
Enclosure Material
Molded Resin
Weight
16.01 pounds
Dimensions
16.85 inches (Length) x 16.85 inches (Width)
Cable Included
1M CL3-Rated Direct Burial Pigtail Cable
Technology
Capacitive Coupling Technology
Security Features
Eye-Bolt Security Anchor and Screw-Down Points
Features
- Delivers powerful bass for outdoor spaces.
- All-weather reliability with IPX66 rating.
- Paintable enclosure for custom decor matching.
- Passive design for flexible amplification.
- Includes mounting hardware and burial cable.
- Independent volume control via crossover.
What customers say
Customers overwhelmingly praise the Polk Audio Atrium Outdoor Subwoofer for its exceptional sound quality and robust build. The primary satisfaction driver is its ability to deliver deep, resonant bass that dramatically enhances outdoor audio systems, transforming background music into a rich, immersive experience. Reviewers consistently note the subwoofer’s durable, weather-resistant construction, confirming its reliability even when exposed to harsh elements. While it requires external amplification, users find the resulting seamless integration and powerful performance fully justify the investment. This component is highly recommended for those seeking premium, long-lasting outdoor entertainment sound.
Know before you buy
No, the Atrium Sub100 is a passive subwoofer, meaning it does not have a built-in amplifier. You will need to connect it to an external amplifier or a receiver to power the unit.
Yes, the unit features an IPX66 weatherproof rating and a durable molded resin enclosure designed to withstand rain, snow, and extreme temperatures. It is built specifically for permanent outdoor installation.
The subwoofer includes a built-in crossover that manages the frequency range, ensuring it handles the deep bass while your main speakers focus on the mids and highs. It also features independent volume control, allowing you to balance the bass output to match your specific outdoor environment.
Yes, the molded resin enclosure is paintable. You can easily customize the finish to blend in with your landscaping, deck, or outdoor furniture.
The subwoofer includes an integrated eye-bolt security anchor and screw-down points. These allow you to tether or bolt the unit to a deck or patio surface for added peace of mind.
It includes a 1-meter CL3-rated direct burial pigtail cable. Depending on the distance between your amplifier and the subwoofer's final placement, you may need to purchase additional outdoor-rated speaker wire to complete the connection.
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