Rated 4.9 (120 reviews)
The JBL GSB8 is an 8in in-ground landscape subwoofer that adds bass to JBL GSF landscape speaker systems. It is buried with only the port visible, reaches down to 35 Hz, and has a 100W transformer for 100V and 70V lines plus a 6 ohm direct setting. It suits hotel gardens, restaurant terraces, retail parks and other outdoor areas.
8in
Subwoofer
35 Hz
Low limit (-10 dB)
100W
Max 100V tap
360°
Horizontal
Features
200 mm (8 in) polypropylene cone driver with 50 mm (2 in) voice coil
Built-in multiple-slope low-pass filter
100V taps at 100W and 50W; 70V taps at 100W, 50W and 25W
6 ohm direct setting, 250W continuous pink noise
Installs in the ground with only the port visible; driver chamber sits below the opening
Grab handles and anchor tabs for securing to blocks or anchors
Polyethylene enclosure, 6 mm minimum wall, coloured throughout
1 m cable tail, seven gel-filled wire nuts supplied
Pairs with JBL GSF full-range landscape speakers
Sold individually
Specifications
| Frequency range (-10 dB) | 35 Hz to 130 Hz |
| Frequency response (±3 dB) | 43 Hz to 120 Hz |
| Power rating | 500W continuous programme, 250W continuous pink noise (2 hrs) |
| Sensitivity | 85 dB |
| Maximum SPL | 109 dB continuous, 115 dB peak at 1 m |
| Coverage | 360° horizontal, 160° vertical |
| 100V taps | 100W, 50W |
| 70V taps | 100W, 50W, 25W |
| Low-impedance setting | 6 ohms |
| Enclosure | LDPE polyethylene |
| Dimensions | 768 mm high x 311 mm diameter |
| Weight | 9.3 kg |
