SKU: 60843748212

JBL GSB12-GN In-Ground Landscape Subwoofer (Hunter Green) - 12in

$517.50 $575.00
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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30

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Description

JBL GSB12-GN In-Ground Landscape Subwoofer (Hunter Green) - 12inWith a focus on fidelity and a sleek, award winning, ultralow profile design, the hunter green GSB12 In Ground Subwoofer from JBL is the perfect complement to the GSF full range landscape speakers, providing a powerful 12" polypropylene driver that can be mounted underground but still provides potent subwoofer performance down to 30 Hz. This subwoofer can handle up to 1800W peak power input from its bare wire input, and with an IP66 weather rating and

With a focus on fidelity and a sleek, award-winning, ultralow-profile design, the hunter green GSB12 In-Ground Subwoofer from JBL is the perfect complement to the GSF full-range landscape speakers, providing a powerful 12" polypropylene driver that can be mounted underground but still provides potent subwoofer performance down to 30 Hz. This subwoofer can handle up to 1800W peak power input from its bare-wire input, and with an IP66 weather rating and a chamber oriented directly below the audio port, this subwoofer is completely safe for long-term outdoor use in a range of applications, including hotels, parks, retail spaces, event spaces, and more.

The steep, built-in low-pass filter sports multiple slopes for quality sound reproduction. The GSB12 also includes a 200W subwoofer-band transformer with either direct, 6-ohm operation or multitap functionality for installed systems, supporting 70 and 100V modes. Grab handles make it quick and simple to install and anchor points are included for securing the cabinet to blocks or anchors. The GSB12 includes seven gel-filled wire nuts for aiding in connection to audio systems.

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

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
Environmental
Environmental Protection
Dust/Humidity/Water-Resistant (IP66 / MIL-STD-810)
Physical
Color
Green
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"
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 60843748212

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4.7 ★★★★★
Based on 20 reviews
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Product Reviews
D
Verified Purchase
David Miller
New York, US
★★★★★ 5
Great quality chair, regardless of price.
Color: Black+white, Size: Pack of 1, Color: Black+white, Size: Pack of 1
Great quality chair, regardless of the price, period. So well packaged that it took almost as long to unwrap as assemble. Assembly was easy (loved the Allen wrench with sturdy handle). I am 6'2" and the fit and height adjustments work well for my height. Comfort is personal, so I like the semi-firmness of the seat. While the chair is constructed of heavy gauge plastic the base is solid metal with enamel finish: I love the look. The arm rests line up perfectly to my computer keyboard. I expect many, many years of service.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
E
Verified Purchase
EJ
Lexington, US
★★★★★ 5
Great Value for a Comfortable Home Office Chair
Color: Black, Size: Pack of 1, Color: Black, Size: Pack of 1
I’ve been using this chair for a couple of days now, and honestly, it’s been a solid upgrade from my old one. I work from home most days, so comfort matters a lot—and this chair delivers better than I expected for the price. The first thing I noticed was the lumbar support. It’s actually adjustable and makes a noticeable difference, especially if you tend to sit for long stretches. My lower back used to get sore after a few hours, but that hasn’t really been an issue since switching to this chair. The mesh back is also a nice touch—it keeps things breathable, which I didn’t think I’d care about until I had it. Assembly was pretty straightforward. Took me maybe 20–25 minutes without any frustration. Everything lined up well, and the instructions were clear enough. In terms of comfort, the seat is firm but not hard. It doesn’t feel like one of those super plush chairs, but I actually prefer that because it feels more supportive over time. The reclining feature is smooth, and I like that you can lean back a bit when you need a break. Overall, I’d say this is a great value for a home office setup. If you want something ergonomic and comfortable without spending a fortune, this chair is definitely worth considering.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
A
Verified Purchase
Amazon Customer
Omaha, US
★★★★★ 5
Excellent Office Chair
Color: Black+white, Size: Pack of 1
I just received my TRALT Office Chair. First of all, I was impressed with the packaging of this item. When I opened the box each piece of the chair was wrapped in plastic or bubble wrap. Everything in the box arrived safely and without damage. Secondly, the instructions to assemble the chair were very each to follow. I was impressed with the Allen wrench which had a handle attached to it. This made screwing in the screws very easy. I was able to assemble the chair without any difficulty. Lastly, the look of the chair and the comfort is exceptional. I ordered the black/white chair which looks amazing. The comfort of the chair is really excellent. My back is supported by the lumbar seat and having the armrests being able to go up when not needed is wonderful. The quality of the chair is definitely worth the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
J
Verified Purchase
Jennifer3002
Battle Creek, US
★★★★★ 4
a good choice
Color: Black, Size: Pack of 1, Color: Black, Size: Pack of 1
Assembled chair only to find that the lift cylinder was faulty. Would have preferred to be able to just get a replacement cylinder but calling China didn't seem like a viable option. Guessing which one & buying it online would involve paying for a good portion of what the chair cost. Customer service could only offer a replacement or refund. We're disassembling (so much fun?!) to send it back. The chair itself was very comfortable, assembled fairly easily and instructions pretty clear. Again, if we could only have asked the seller for the replacement part......**Update**...Or if the instructions that seemed so clear were clearer!, as we started to disassemble, we decided to see what would happen if the tension knob (see photo) was loosened. IT ALLOWED THE LIFT CYLINDER TO WORK. Not at all what the instructions say. At any rate, we're keeping the chair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
J
Verified Purchase
jinju jiang
Houston, US
★★★★★ 5
This chair is amazing
Color: Sky Blue, Size: Pack of 1, Color: Sky Blue, Size: Pack of 1
⭐⭐⭐⭐⭐ Absolutely love this chair! It was super easy to assemble—I had it set up in no time with clear instructions and minimal effort. The comfort level is fantastic; the seat cushion is just right and the back support makes it great for longer sitting sessions. The color is beautiful in person—clean, modern, and adds a fresh pop to the room without being overwhelming. I also really like the smooth wheels and sturdy build; it feels stable and well-made. Overall, this is a great combination of style, comfort, and value. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026

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