JBL JBL-GSB12-TN 12" In-Ground Subwoofer, Tan, 1 pc
- Brand new in original box
- Full JBL manufacturer's warranty
- Free shipping in the continental US
In stock
- SKU
- JBL-GSB12-TN
Description
JBL JBL-GSB12-TN 12" In-Ground Subwoofer, Tan
The JBL-GSB12-TN is a purpose-built in-ground subwoofer engineered for permanent outdoor installation in landscape and architectural audio systems. Its robust construction handles extreme environmental conditions while delivering controlled low-frequency reinforcement from a completely concealed position.
Installation & Environmental Durability
This subwoofer requires an installation hole approximately 22 inches in diameter and 26 inches deep, allowing it to integrate flush with grade for seamless landscape integration. The IP66 weather rating and MilSpec 810 compliance ensure reliable operation through humidity, salt spray, temperature fluctuations, and UV exposure—critical for permanent outdoor deployment.
Audio Performance & Power Handling
The 305 mm (12-inch) polypropylene injection cone with thermoplastic vulcanizate surround delivers 450W RMS (1800W peak) with a frequency response of 30 Hz–120 Hz and 85.5 dB sensitivity. Maximum output reaches 118 dB peak SPL (111 dB continuous at 1 meter), providing substantial bass extension for distributed outdoor systems.
Key Features
- 12-inch polypropylene cone with thermoplastic vulcanizate surround
- 50 mm (2-inch) voice coil on glass fiber former
- 450W RMS / 1800W peak power handling
- Frequency range: 30 Hz – 120 Hz
- Sensitivity: 85.5 dB (40 Hz – 105 Hz average)
- Maximum SPL: 118 dB peak / 111 dB continuous @ 1m
- 200W subwoofer-band transformer with 6-ohm direct and 70V/100V multitap modes
- IP66 weather rating with LDPE polyethylene housing and aluminum grille
- MilSpec 810 compliance (humidity, salt spray, temperature, UV resistance)
- Dimensions: 866 mm height × 402 mm diameter (34" × 16")
- Includes 40" bare-ended speaker wire, base plate, mounting hardware, and documentation
The JBL-GSB12-TN combines transformer-based system flexibility with commercial-grade weatherproofing, making it the standard choice for permanent outdoor installations requiring extended low-frequency response.
More Information
| Condition | New |
|---|
Reviews
At a Glance
The JBL-GSB12-TN is a permanent outdoor subwoofer designed for landscape and architectural audio systems, not studio recording or portable sessions. Its transformer-based design offers 70V/100V multitap flexibility for distributed commercial installations, and its extended low end (30 Hz–120 Hz) suits background music and ambience reinforcement in outdoor venues. If your work involves fixed outdoor audio deployments with long-term durability demands, this is purpose-built; it is not a studio monitoring or portable production tool.
Who This Is For
Great for
- ✓ Live Performance
- ✓ Landscape Audio Systems
- ✓ Outdoor Installations
Not the best pick for
- – Home Recording
- – Studio Sessions
- – Practice
Skill level: Professional
Frequently Asked Questions
What does IP66 weather rating mean for this subwoofer?
IP66 means the JBL-GSB12-TN is dust-tight and protected against heavy water spray from any direction. Combined with MilSpec 810 compliance, it withstands humidity, salt spray, temperature swings, and UV exposure, ensuring reliable operation in permanent outdoor installations.
How deep does the installation hole need to be?
The subwoofer requires a hole approximately 22 inches in diameter and 26 inches deep, allowing it to sit flush with grade for seamless landscape integration once installed.
What power handling and output should I expect?
The JBL-GSB12-TN delivers 450W RMS (1800W peak) with maximum SPL of 118 dB peak or 111 dB continuous at 1 meter, providing substantial bass reinforcement for distributed outdoor audio systems.
Does it support 70V/100V line-level systems?
Yes, the included 200W subwoofer-band transformer offers both 6-ohm direct and 70V/100V multitap modes, making it flexible for commercial and architectural audio configurations.
What comes in the box?
The package includes the 12-inch subwoofer, 40 feet of bare-ended speaker wire, base plate, mounting hardware, and documentation for installation.
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