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1800 W (PMPO) - 12" - 39 Hz to 107 Hz - 6 Ohm
$800.01
Special order — estimated available by September 10, 2026.
Genuine Harman International Industries through authorized distribution — TAA country-of-origin verified and NDAA §889 screened before checkout.
In-Ground Landscape Subwoofer
The JBL GSB12 in-ground 12-inch landscape subwoofer augments the low-frequency performance of JBL GSF full-range landscape speakers to provide rich, full-range sound in lawn and garden areas of hospitality, corporate and retail spaces.
The GSB12 focuses on fidelity, with true subwoofer extension down to 30 Hz and a steep, multiple-slope lowpass filter for superior sound. Its premium-grade, 200-watt subwoofer-band transformer allows use in 70V/100V systems or can be connected for low-impedance direct operation.
This sleek, ultra-low-profile speaker-winner of international design awards for industrial design excellence-installs underground, with only the audio port visible. It's designed to withstand the elements: Its chamber is oriented directly below the audio port to prevent accidental damage from landscaping, which can be a problem with side-located chambers. Grab handles allow easy installation and tabs secure the subwoofer to blocks or anchors.
Add the GSB12 to landscape areas of hotels, shopping complexes, restaurants, public spaces, theme parks or any application that demands legendary JBL sound with deep, rich, powerful bass.
Features
• Transducer: GSB12: 305 mm (12") polypropylene driver, 50mm (1.5") voice coil on Kapton former
• True subwoofer performance down to 30Hz
• 450 W Power Handling (continuous pink noise, 2 hrs)
• Built-in steep, multiple-slope lowpass filter
• Low-impedance direct operation , plus premium-grade subwoofer-band transformer for use in 70V/100V systems
• Forms a complete system with JBL GSF full-range landscape speakers
• Chamber oriented directly below opening to prevent accidental damage from landscaping
• Grab handles allow easy installation
• Anchor points for securing cabinet to block or anchors
• Available in hunter green or tan finishes to fit a wide variety of landscapes
• Dimensions : 866 mm Height x 402 mm Diameter (34 x 16 in)
JBL Professional: Legendary Audio for Over 70 Years At JBL, audio technology is at the core of everything we do. For 70 years we have employed the best methodology and tools. As established at the very beginning by our founder, James B. Lansing, we develop everything from the ground up. This not only ensures success in the marketplace, but it also guarantees our efforts exceed the needs and expectations of audio professionals throughout the world. Never straying from this exacting formula, our journey has produced a prolific list of audio achievements, groundbreaking technologies, revolutionary advances in the art and science of professional audio, many patents, and many awards. It’s a journey that is legendary worldwide and has positioned JBL as the world leader in professional audio.
| General Information | |
|---|---|
| Manufacturer | Harman International Industries, Inc |
| Manufacturer Part Number | JBL-GSB12-GN |
| Brand Name | JBL Professional |
| Product Model | GSB12 |
| Product Name | GSB12 12" In-Ground Subwoofer |
| Packaged Quantity | 1 |
| Product Type | Woofer |
| Physical Characteristics | |
| Color Family | Green |
| Product Color | Green |
| Form Factor | In-ground |
| Durability | Dust Resistant, Moisture Resistant, Splash Proof, Water Resistant, Weather Resistant, Humidity Resistant, Spray Proof |
| Speaker Installation | Outdoor |
| Diameter | 15.8" |
| Subwoofer Height | 34.09" |
| Weight (Approximate) | 35.71 lb |
| Technical Information | |
| Crossover Type | 2-way |
| RMS Output Power | 450 W |
| PMPO Output Power | 1800 W |
| Woofer Driver Size | 12" |
| Minimum Frequency Response | 39 Hz |
| Maximum Frequency Response | 107 Hz |
| Impedance | 6 Ohm |
| Sensitivity | 86 dB |
| Ingress Protection (IP) Rating | IP66 |
| Miscellaneous | |
| Package Contents |
|
| Application/Usage | Landscape, Garden, Hospitality, Retail, Corporate, Hotel, Shopping, Restaurant, Public Area, Theme Bar |
| Environmentally Friendly | Yes |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) |
| Country of Origin | China |
Send a bill of materials or part numbers — we confirm stock, TAA country of origin and a below-market total. No payment up front.
