GSB8-GN 8" Landscape In-Ground Garden 70V Commercial Subwoofer

The JBL GSB8 is an 8-inch in-ground landscape subwoofer built to add low end to lawn and garden sound systems in hospitality, corporate, and retail spaces. It extends bass response down to 35 Hz using a steep, multiple-slope lowpass filter, and a premium 100-watt subwoofer-band transformer supports 70V or 100V distributed systems as well as low-impedance direct operation.

The cabinet installs entirely underground, leaving only the audio port visible above the lawn, and its internal chamber sits directly below that opening rather than to the side, reducing the risk of damage from landscaping equipment. Grab handles make the subwoofer easier to lower into place, and anchor tabs secure it to blocks or ground anchors so it stays put through mowing and yard work.

Handling up to 500W continuous program power at up to 114 dB peak, the GSB8 pairs naturally with JBL GSF full-range landscape speakers to round out a smaller outdoor sound system. It ships in a hunter green finish that blends into most garden and lawn settings.