JBL JBL-GSB8-GN 8" In-Ground Subwoofer, Grn, 1 pc
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- Brand new in original box
- Full JBL manufacturer's warranty
- Free shipping in the continental US
In stock
- SKU
- JBL-GSB8-GN
. Description
JBL JBL-GSB8-GN 8" In-Ground Subwoofer, Green
The JBL-GSB8-GN is a purpose-built in-ground subwoofer engineered for permanent outdoor installations where weather resistance and consistent low-frequency performance are non-negotiable. Its compact footprint and integrated grab handles make deployment straightforward, while the robust construction delivers reliable bass reinforcement in fixed landscape and architectural audio applications.
Design & Durability
Built to withstand outdoor exposure, this subwoofer carries an IP66 weather rating and measures 768 mm height × 311 mm diameter (30.1 × 12.2 inches), fitting flush into ground installations without protruding visual clutter. Integrated grab handles and anchor points simplify both installation and future maintenance in field conditions.
Audio Performance
The 8-inch polypropylene woofer with 38 mm (1.5") voice coil on Kapton former delivers low-frequency extension down to 35 Hz, providing the depth needed for outdoor events and venue reinforcement. The built-in steep, multiple-slope lowpass filter integrates cleanly with line-level feeds from your console or processor. A 100W subwoofer-band transformer offers flexible operation in 6-ohm direct mode or 70V/100V multitap configurations—essential for distributed audio systems where you need synchronized bass across multiple zones.
Key Features
- 8-inch polypropylene woofer with 38 mm (1.5") voice coil on Kapton former
- Frequency response down to 35 Hz
- Continuous program power: 500W; Peak power: 1000W
- 100W subwoofer-band transformer with 6-ohm direct or 70V/100V multitap operation
- Built-in steep, multiple-slope lowpass filter
- IP66 weather rating for outdoor durability
- Dimensions: 768 mm height × 311 mm diameter (30.1 × 12.2 inches)
- Integrated grab handles and anchor points for installation
- Seven gel-filled wire nuts included for audio connections
Ideal for sound techs running permanent outdoor systems, festival grounds, or venue perimeter reinforcement where you need rock-solid bass performance and equipment that survives the elements year-round.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | China |
Reviews
At a Glance
The JBL-GSB8-GN is a weather-sealed 8-inch in-ground subwoofer built for permanent outdoor installations at venues, parks, and landscape audio systems. Engineered for live-sound professionals and installation crews, it delivers clean low-end extension down to 35 Hz with IP66 durability and integrated grab handles that make deployment and future maintenance straightforward in field conditions. Choose it when you need reliable bass reinforcement that stays buried flush with the ground and performs consistently through seasonal weather without fuss.
Who This Is For
Great for
- ✓ Live Performance
- ✓ Installation Audio
- ✓ Landscape/Architectural Audio
- ✓ Outdoor Events
Not the best pick for
- – Home Recording
- – Studio Sessions
- – Portable Gigging
Skill level: Intermediate · Advanced · Professional
Frequently Asked Questions
What's the frequency response and power handling?
The 8-inch woofer delivers low-frequency extension down to 35 Hz with continuous program power of 500W and peak power of 1000W. A built-in steep lowpass filter ensures clean integration with line-level feeds in distributed audio systems.
How do I connect it — 6-ohm or 70V/100V?
The 100W subwoofer-band transformer offers flexible operation in 6-ohm direct mode or 70V/100V multitap configurations, typical of installed outdoor and landscape audio systems. Seven gel-filled wire nuts are included for audio connections.
Is this weatherproof for outdoor burial?
Yes; the IP66 weather rating ensures durability against outdoor exposure. The compact footprint (768 mm height × 311 mm diameter) fits flush into ground installations, and integrated anchor points secure it in place during seasonal use.
Is this suitable for portable live sound or touring?
No. This is a fixed in-ground installation product, not designed for portable gigging or road use. It is engineered for permanent outdoor venue, landscape, or architectural audio applications.
Do I pay sales tax on this order?
We collect sales tax only on orders shipped to California. Orders shipped to any other US state are charged $0 sales tax at checkout when you buy direct from our website. On this item that is roughly $38 less out the door than the same listed price at a national retailer or on a marketplace. Marketplaces such as eBay, Reverb and Amazon collect sales tax in nearly every state as marketplace facilitators no matter who the seller is, so the same item at the same price costs less bought direct. Free US shipping and 30-day returns are included. Some states ask buyers to self-report use tax on out-of-state purchases.
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