The white Soundsphere Q-SB2 Sub-Bass Supplement is an omnidirectional speaker designed for installations requiring enhanced low-frequency response at high sound pressure levels. Applications include gymnasiums, ice rinks, arenas, houses of worship, bars, nightclubs, and more.

The Q-SB2 features dual 18" drivers capable of a 360° vertical/horizontal area of coverage while maintaining an enhanced low-frequency response. The Q-SB2 is housed in a fiberglass enclosure with plated steel hardware and offers 40 - 200 Hz frequency response with a high sensitivity of 99 dB. The Q-SB2 is ideal as a sub-bass supplement for Q-12A loudspeaker systems (sold separately).