MartinLogan
MartinLogan Dynamo Outdoor Sub 100 – 10-Inch In-Ground Subwoofer
Pairs well with
MartinLogan Dynamo Outdoor Sub 100 – 10-Inch In-Ground Subwoofer
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Overview
MartinLogan Dynamo Outdoor Sub 100 – 10-Inch In-Ground Landscape Subwoofer
Rich Bass for Beautiful Outdoor Spaces
Bring warmth, rhythm, and impact to your outdoor music with the MartinLogan Dynamo Outdoor Sub 100. Designed to complement landscape speakers, this passive subwoofer adds a satisfying bass foundation to patio dinners, poolside afternoons, and evenings with friends.
Powerful Sound, Discreet Installation
A 10-inch mineral-filled polypropylene woofer with an oversized 2-inch voice coil delivers low-frequency response down to 33 Hz. The enclosure installs below ground, leaving only its unobtrusive mushroom-shaped canopy visible.
The flared port supports clean bass reproduction, while the canopy protects the opening and allows airflow. A rugged high-density polyethylene enclosure provides durability for outdoor installations.
Technical Specifications
| Specification | Details |
|---|---|
| Type | Passive outdoor landscape subwoofer |
| Woofer | 10-inch mineral-filled polypropylene |
| Frequency Response | 33–135 Hz, ±3 dB |
| Recommended Amplifier Power | 20–800W per channel |
| Nominal Impedance | 8 ohms |
| Anechoic Sensitivity | 82 dB |
| Weight | 48 lbs |
| Sold As | Single subwoofer |
Compatible external amplification and outdoor-rated speaker wiring are required.
Give Your Favorite Outdoor Moments a Better Soundtrack
Imagine your favorite music filling the patio as the sun goes down—rich, inviting, and ready for another evening together.
At The Grid HiFi, we help you choose the speakers, amplification, and custom installation that bring that experience home. Whether you’re upgrading your backyard or planning a complete outdoor entertainment space, let our team design a system around the way you live and listen.
Make your next gathering sound exceptional. Contact The Grid HiFi today.
Call (713) 218-8120
FAQs
Please read our FAQs page to find out more.
Do you price match?
Yes. We match any authorised dealer, including big-box retailers. If you find the same product at a lower price, contact us and we'll match it.
Do you offer free shipping?
Yes — free shipping on every order, with 2-day delivery available on most products. Easy returns and exchanges are included.
Where is your showroom?
We're at 6362 Alder Drive, Houston, Texas. The showroom lets you hear and compare reference-level systems in person before making any decisions. If you're considering a larger purchase or installation, it's well worth the visit.
Can I buy online without visiting the showroom?
Yes. The full product range is available through the online store with free nationwide shipping. For more complex system builds, speaking with one of our advisers first tends to lead to a better result.
Do you offer financing?
Yes. Special financing is available through the BrandSource Credit Card for qualifying purchases, allowing you to spread payments over time with no annual fee. Promotional rebate savings are also available periodically. See the financing page for full details.
Do you install systems as well as sell equipment?
Yes — installation is central to what we do. We design and install whole-home audio and video, home theaters, media rooms, outdoor audio, lighting and motorised shades, and full smart home automation.
Do you provide support after installation?
Yes. We provide ongoing service and support to ensure systems continue performing as intended — not just on installation day, but over the long term.