Boom Tomb - In-Ground SubwoofersGreat musical entertainment should follow you are. Outdoor environments are just as important as those we carefully design and enjoy within the walls of our homes. To complement their wide variety of dedicated outdoor loudspeakers, SpeakerCraft proudly presents the Boomtomb in-ground subwoofer. Bury this waterproof enclosure in the backyard, in a flower bed, at the edge of the lawn or near the pool and the long excursion 10-inch woofer will shake the earth. Vented through a hooded port, the only exposed element of the system, the bass will support any number of Ruckus, Outdoor Elements or OG speakers in the vicinity. When powered by a dedicated external 250-watt amplifier (sold separately), the Boomtomb will bring your landscape to life.