Offering remarkable low end for their size and clear, intelligible highs, the Bose Professional DesignMax DM3SE are a pair of 2-way coaxial surface-mount loudspeakers that utilize a dispersion alignment system to provide phase-accurate audio and a consistent listening experience. Each speaker includes a powder-coated U-bracket for easy installation. Surface-mount pan-and-tilt and ceiling-mount brackets are available separately.