MartinLogan Dynamo Outdoor Sub 120 In-Ground Subwoofer

Powerful, Deep Bass. Virtually Invisible Outdoors.

Experience extraordinary low-frequency performance beyond the walls of your home with the MartinLogan Dynamo Outdoor Sub 120, a premium 12-inch subterranean subwoofer designed to bring deep, powerful, and musical bass to your outdoor entertainment system.

Engineered for larger patios, pool areas, gardens, and expansive backyard environments, the Dynamo Outdoor Sub 120 delivers the kind of full-bodied bass that transforms outdoor music from background entertainment into a truly engaging listening experience.

Serious Bass Without Sacrificing Your Landscape

At the heart of the Dynamo Outdoor Sub 120 is a 12-inch mineral-filled polypropylene woofer with an oversized 2.5-inch voice coil, engineered to produce authoritative, controlled bass with exceptional musical detail.

With low-frequency extension reaching 28Hz (±3dB), this subwoofer delivers the depth and impact needed to complement premium outdoor satellite speakers.

Its innovative subterranean design allows the main enclosure to be buried beneath the landscape, leaving only a discreet mushroom-style canopy visible above ground.

The result is powerful outdoor bass without the visual intrusion of a conventional subwoofer enclosure.

Engineered for Demanding Outdoor Environments

The Dynamo Outdoor Sub 120 is built for permanent outdoor installation using a rugged, high-density polyethylene enclosure designed to withstand moisture, temperature extremes, and challenging weather conditions.

Its IP58-rated construction provides exceptional protection against dust and water, while the specially engineered port and ventilation system allows the subwoofer to deliver powerful bass without compromising its outdoor durability.

Whether installed within landscaped gardens or beneath a deck, the Dynamo Outdoor Sub 120 integrates naturally into its surroundings.

Features & Highlights

• 12-inch mineral-filled polypropylene woofer for powerful, accurate low-frequency reproduction

• Oversized 2.5-inch voice coil for demanding bass performance

• Frequency response: 28Hz–120Hz (±3dB)

• 500-watt maximum input power

• 8-ohm impedance for integration with compatible amplification

• 91dB outdoor sensitivity

• IP58-rated weather-resistant construction

• Subterranean installation with discreet above-ground canopy

• High-density polyethylene enclosure engineered for direct burial

• Low-noise flared port design for clean, musical bass

• Compatible with MartinLogan Outdoor Living satellite speakers

• Scalable system design for larger outdoor entertainment installations

The Foundation of Exceptional Outdoor Audio

Outdoor environments present unique challenges for low-frequency reproduction. Without walls to reinforce bass, conventional outdoor speakers can struggle to deliver the fullness and impact of a premium indoor audio system.

The Dynamo Outdoor Sub 120 addresses that challenge with substantial driver capability and a purpose-built underground enclosure.

Pair it with MartinLogan Outdoor Sat 40 or Sat 60 landscape speakers to create an expansive, beautifully balanced outdoor audio system that delivers outstanding musical performance throughout your property.

For larger spaces, multiple subwoofers can be incorporated to improve bass coverage across different listening areas.

Professionally Designed Outdoor Entertainment

At Audible Elegance, we believe your outdoor entertainment system should deliver the same exceptional listening experience as the finest indoor audio systems.

Our team can help design a complete outdoor audio solution, including speaker placement, amplification, underground wiring, subwoofer integration, and convenient system control.

Professional system design and installation are available.

Visit our Montgomery showroom or contact Audible Elegance to discuss your outdoor entertainment project.

Passive subwoofer. Compatible external amplification, wiring, and installation are sold separately.