Fill Your Space with Premium Bose Sound. You don't need big speakers to fill your space with rich, full-range sound, when you install the Bose FreeSpace 3 surface-mount satellite speakers. Their small size belies their extended frequency range, equally suited for full-range music playback as well as public address announcements. Combined with the Bose Acoustimass bass module (sold separately), you have your choice of 70V/100V or low impedance operation, with transformer taps selectable on the bass module. Ideal for retail stores, restaurants and bars, lobbies, and conference rooms, Sweetwater is sure you'll be impressed with the sound of Bose FreeSpace 3 surface-mount satellites.Bose FreeSpace 3 Surface-mount Satellites Features:. Rich, full sound from compact, surface-mount satellite speakers. For use with Bose Acoustimass Bass Module (sold separately). Selectable 70/100V or low impedance operation (selectable on separate bass module). Ideal for retail stores, restaurants and bars, lobbies, conference rooms, and other public spaces. Sold as a pair.