Polk Atrium SUB100 Outdoor Subwoofer - 10-Inch Long-Throw Driver, All-Weather Passive

Polk Atrium SUB100 Outdoor Subwoofer: Deep, controlled bass for outdoor spaces

The Polk Atrium SUB100 is a purpose-built outdoor subwoofer designed to deliver powerful bass without sacrificing clarity. Its 10-inch long-throw Dynamic Balance driver delivers low-end energy with precision, keeping the sound tight even at higher playback levels. Combined with Capacitive Coupling Technology, this sub helps maintain signal integrity across outdoor wiring, reducing distortion and preserving the music’s natural punch.

The enclosure is molded from resin and finished in a subtle grey that can be painted to blend with your landscape. With an IPX66 weatherproof rating, you can count on reliability in rain, sun, and humidity. The design also anticipates installation flexibility with in-ground approval and a rugged build that can additionally serve as a plant stand or pedestal table when needed. For safety and security, the SUB100 includes an eye-bolt security anchor and screw-down points, and it ships with a 1-meter CL3-rated direct burial pigtail cable to keep wiring out of harm’s way and away from lawn equipment.

Flexible design that blends with outdoor spaces

Beyond performance, the SUB100’s enclosure is paintable, letting you tailor its look to match shrubs, pathways, or patio furniture. The dual-use form—audio driver when in use, stable surface when not—adds practical flexibility for smaller outdoor areas.

Powerful, customizable bass for outdoor gatherings

The built-in crossover technology lets you dial in the SUB100’s bass to your space, enabling independent volume control to support a balanced outdoor system. This flexibility makes it easier to integrate the sub with other Atrium components and create a cohesive sound experience across seating areas, decks, and yards without overpowering conversations.

Pairing ideas and system expansion

For a more immersive outdoor system, pair the SUB100 with Atrium 5 and Atrium 6 pairings and the Atrium Sat300 Outdoor Speaker (sold separately). This combination is designed to deliver a wide, engaging soundstage for parties, movie nights outdoors, or quiet evenings under the sky.

Key benefits at a glance

• Deep, effortless bass from a 10" Dynamic Balance driver designed for outdoor acoustics.
• Weatherproof construction with IPX66 rating and a molded resin enclosure.
• Security-minded features including eye-bolt anchor, screw-down points, and direct burial cable.
• Paintable finish and dual-use enclosure that can serve as a plant stand or pedestal table.
• Flexible crossover and independent volume control for tailored outdoor sound.

Placement and usage ideas

• Rests near seating for immersive backyard movie nights and gatherings.
• Installed in-ground or on a patio surface to minimize visual clutter.
• Integrated with Atrium speakers to create a cohesive multi-room outdoor soundscape.

With Polk’s engineering and thoughtful design, the Atrium SUB100 brings robust bass and reliable performance to your outdoor space. It’s a practical, flexible choice for outdoor enthusiasts who want to elevate their listening experience without compromising on weather resistance or aesthetics.