Description

JBL GSB12 In-Ground Landscape Subwoofer

Experience deep, immersive outdoor sound like never before with the JBL GSB12 In-Ground Landscape Subwoofer, a premium audio solution designed to transform your garden, patio, or outdoor entertainment space into a rich sonic environment. Engineered with precision and built for durability, this outdoor subwoofer delivers powerful low-frequency performance while blending seamlessly into natural surroundings. Whether you’re hosting a lively gathering or enjoying a peaceful evening outdoors, the JBL GSB12 ensures every note resonates with clarity and depth.

The JBL GSB12 In-Ground Landscape Subwoofer is specifically crafted for outdoor environments, combining rugged construction with advanced acoustic engineering. Its weather-resistant design allows it to withstand harsh environmental conditions, including heat, humidity, and rain, ensuring reliable performance year-round. The discreet in-ground installation keeps your landscape visually appealing while delivering booming bass that enhances your outdoor audio system without cluttering the space.

One of the standout features of the JBL GSB12 In-Ground Landscape Subwoofer is its ability to produce powerful, distortion-free bass even at high volumes. This makes it ideal for large outdoor areas where traditional speakers may struggle to deliver consistent sound coverage. Paired with satellite speakers, the GSB12 creates a balanced audio experience, bringing music, movies, and events to life with rich, full-bodied sound.

Installation is designed to be simple and flexible, allowing you to integrate the subwoofer into various outdoor layouts. JBL GSB12 In-Ground Landscape Subwoofer camouflage-friendly tan finish blends naturally with soil, mulch, or garden features, making it virtually invisible once installed. This ensures your outdoor aesthetics remain intact while benefiting from high-performance audio.

The JBL GSB12 In-Ground Landscape Subwoofer is perfect for homeowners, landscape designers, and audio enthusiasts who demand premium sound quality outdoors. It supports a wide range of audio applications, from background music to high-energy parties, providing consistent and impactful bass that elevates any listening experience.

Another advantage of the JBL GSB12 In-Ground Landscape Subwoofer is its compatibility with professional-grade outdoor audio systems. It can be seamlessly integrated into existing setups, making it a versatile addition to both new and upgraded installations. The subwoofer’s robust build quality ensures long-term durability, reducing the need for frequent maintenance or replacements.

In addition to its technical excellence, the JBL GSB12 In-Ground Landscape Subwoofer reflects JBL’s legacy of delivering world-class audio solutions. Known for innovation and reliability, JBL continues to set the standard in sound engineering, and this in-ground subwoofer is no exception. It combines cutting-edge technology with practical design, making it a top choice for outdoor audio enhancement.

If you’re looking to upgrade your outdoor sound system, the JBL GSB12 In-Ground Landscape Subwoofer offers the perfect balance of power, durability, and aesthetic integration. Its superior bass performance, weather-resistant construction, and seamless installation make it a must-have for anyone seeking a premium outdoor audio experience.

Transform your outdoor space into a captivating soundscape with the JBL GSB12 In-Ground Landscape Subwoofer and enjoy music the way it was meant to be heard—rich, powerful, and immersive. This subwoofer is not just an accessory; it’s a game-changing addition that redefines outdoor entertainment.

Explore our full range of Subwoofers

Features

  • For Retail, Parks, Hotels, and More
  • 12″ Polypropylene Subwoofer Driver
  • Low-Profile Design, Installed in Ground
  • 900W Continuous Program, 1800W Peak
  • Multitap Transformer: 70/100V or 6-Ohm
  • True Subwoofer Performance Down to 30 Hz
  • Built-In Multi-Slope Low-Pass Filter
  • Grab Handles for Easy Install
  • Anchor Points for Blocks or Anchors
  • Includes Seven Gel-Filled Wire Nuts

Specifications

Key Specs
Model
Active/Passive
Passive
Speaker Configuration
Subwoofer
Power Handling
For 2 Hours: 450 W / 900 W Program / 1800 W Peak
For 100 Hours: 300 W / 1200 W Peak
Constant Voltage / Transformer Taps
70 V – 200 / 100 / 50 W or 6 Ohms Bypass
100 V – 200 / 100 W or 6 Ohms Bypass
Impedance
4.8 Ohms (Minimum) / 6 Ohms (Nominal, Transformer Bypassed)
LF Driver
1x 12″ / 30.5 cm Polymer-Coated Polypropylene Woofer
Frequency Range
30 Hz to 120 Hz -10 dB
Color
Tan

Speaker

Active/Passive
Passive
Number of Included Speakers
1
Speaker Configuration
Subwoofer
Power Handling
For 2 Hours: 450 W / 900 W Program / 1800 W Peak
For 100 Hours: 300 W / 1200 W Peak
Constant Voltage / Transformer Taps
70 V – 200 / 100 / 50 W or 6 Ohms Bypass
100 V – 200 / 100 W or 6 Ohms Bypass
Impedance
4.8 Ohms (Minimum) / 6 Ohms (Nominal, Transformer Bypassed)
Transformer Wattage
200 W

Drivers

LF Driver
1x 12″ / 30.5 cm Polymer-Coated Polypropylene Woofer
LF Voice Coil
2″ / 5.1 cm

Performance

Frequency Range
30 Hz to 120 Hz -10 dB
Frequency Response
39 Hz to 107 Hz ±3 dB
Maximum SPL
118 dB (Peak) / 112 dB (Continuous)
Sensitivity
85.5 dB (Average)
Coverage Angle
360° H x 160° V
Recommended High-Pass Filter
27 Hz, 24 dB/Octave
Maximum Input Voltage
45 V
Transformer Insertion Loss
<0.5 dB
Protections
Low Impedance

Connectivity

Inputs/Outputs
2x Wire Lead Speaker Input
Maximum Wire Gauge
14 AWG

Physical

Environmental Resistance
Dust/Humidity/Water-Resistant (IP66 / MIL-STD-810)
Color
Tan
Rotation Range
No
Construction Material
Polyethylene, Stainless Steel Grille
Dimensions
33.2 x 15.8″ / 84.3 x 40.1 cm
Weight
35.7 lb / 16.2 kg

Packaging Info

Package Weight
42.5 lb
Box Dimensions (LxWxH)
36 x 18.75 x 18″

Download the Technical Datasheet – JBL GSB12

SKU-PM/45

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