MartinLogan
MartinLogan Outdoor Living Foundation Sub 8 – 8-Inch In-Ground Subwoofer
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MartinLogan Outdoor Living Foundation Sub 8 – 8-Inch In-Ground Subwoofer
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Overview
MartinLogan Outdoor Living Foundation Sub 8 – 8-Inch In-Ground Outdoor Subwoofer
Bring Rich, Powerful Bass to Your Outdoor Space
Enhance your backyard, patio, or garden audio with the MartinLogan Outdoor Living Foundation Sub 8. This passive 8-inch landscape subwoofer adds depth and impact to your music while maintaining a discreet appearance.
Designed for direct-burial installation, the main enclosure sits underground with only its compact canopy visible above the landscaping. Enjoy fuller outdoor sound without a large speaker cabinet occupying your entertainment area.
Dedicated Outdoor Bass Performance
The Foundation Sub 8 features a single 8-inch high-excursion woofer with dual 8-ohm voice coils and 200 watts RMS power handling. Its dedicated bass reproduction complements outdoor satellite speakers, adding warmth and weight to music and outdoor entertainment.
Durable, Discreet Construction
A rugged high-density polyethylene enclosure protects the water-resistant driver. The IP58 rating provides protection against harmful dust deposits and prolonged water immersion.
The mushroom-shaped canopy helps distribute bass, protects the sound outlet, and supports airflow. Its Dark Satin Brown finish blends naturally into garden beds and landscaped spaces.
Expand Your MartinLogan Outdoor System
The Foundation Sub 8 complements MartinLogan Outdoor Living Series and Installer Series speakers. When paired with the MartinLogan MP500 amplifier, it can also serve as a second subwoofer for the Outdoor Living Foundation 8.1 System.
Key Features
- Single 8-inch high-excursion, water-resistant woofer
- Dual 8-ohm voice coils
- 200W RMS power handling
- Direct-burial landscape installation
- Rugged HDPE enclosure
- IP58-rated outdoor protection
- Discreet canopy with Dark Satin Brown finish
- Compatible with appropriately configured external amplification
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Passive in-ground outdoor subwoofer |
| Bass Driver | Single 8-inch woofer |
| Voice Coils | Dual 8-ohm |
| Power Handling | 200W RMS |
| Frequency Response | 47–170 Hz, ±4 dB |
| Crossover | 200 Hz low-pass |
| Outdoor Sensitivity | 89 dB |
| Minimum Mono Impedance | 4 ohms |
| Enclosure Material | HDPE |
| Weather Protection | IP58 |
| Published Dimensions | 22 inches including canopy × 13.8 inches |
| Weight | 17.7 lbs |
| Canopy Finish | Dark Satin Brown |
Installation note: This passive subwoofer requires compatible external amplification and outdoor-rated speaker wiring. Amplifiers and additional speakers are sold separately.
Upgrade Your Outdoor Audio with The Grid HiFi
Add richness and impact to your outdoor entertainment with the MartinLogan Outdoor Living Foundation Sub 8. Contact The Grid HiFi for pricing, availability, amplifier recommendations, and professional installation.
Call The Grid HiFi: (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.