JBL GSB-8 In-Ground Landscape Subwoofer
Best in-ground subwoofer for professional outdoor audio installations.
This in-ground subwoofer delivers deep, cinematic bass that disappears into your garden, leaving only the sound behind. While the installation requires some digging, the trade-off is a clean, professional landscape aesthetic that avoids the clutter of bulky outdoor speakers.
$530.00
at
eBay
Who it's for
- Homeowners prioritizing a clean, minimalist outdoor aesthetic
- Entertainers needing powerful bass for large open-air spaces
- Property owners seeking long-term, weather-proof audio solutions
Who should skip it
- Users preferring easy access for frequent system adjustments
- DIYers lacking the tools or desire for excavation work
- Budget-conscious buyers avoiding additional amplifier and labor costs
Performance breakdown
Low-Frequency Extension
Deep 35 Hz response provides authoritative bass for expansive outdoor spaces.
Installation Versatility
Dual-mode transformer support simplifies integration into complex commercial audio systems.
Environmental Durability
Rugged polyethylene construction ensures long-term resilience against harsh outdoor elements.
Aesthetic Integration
Subterranean design keeps the hardware hidden for a clean landscape look.
Ease of Deployment
Integrated grab handles and anchor points streamline the heavy lifting process.
System Synergy
Optimized to pair seamlessly with GSF speakers for a cohesive soundstage.
Key Specs
Frequency Range (-10 dB)
35 Hz – 130 Hz
Power Rating
250 W Continuous Program (2 hrs)
Sensitivity
84 dB (ave. 43 Hz – 110 Hz)
Nominal Impedance
6 Ω
Transformer Taps
70 V: 100 W, 50 W, 25 W; 100 V: 100 W, 50 W
Driver
8-inch driver
Enclosure Material
LDPE Polyethylene plastic
Dimensions
768 mm height x 311 mm diameter (30.1 x 12.2 in)
Weight
20.5 lbs
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