The Bose Professional FreeSpace DS 40F is a versatile flush-mount loudspeaker designed to deliver high-quality foreground and background music, along with clear speech reproduction, across a wide range of commercial installations. Equipped with a 4.5-inch full-range driver in a ported enclosure, the DS 40F provides a wide 125° conical coverage pattern and impressive low-frequency performance down to 70 Hz, ensuring balanced and consistent sound throughout the space.

Its integrated multi-tap transformer features an innovative thumb-wheel adjustment, allowing easy tap setting changes directly from beneath the grille. The short-can design enables installation in shallow ceiling spaces with a minimum depth of just 153 mm, making it ideal for projects with limited ceiling clearance. Voiced to match the entire FreeSpace DS family, the DS 40F integrates seamlessly with DS 16 and DS 100 models for consistent tonal quality across multi-speaker systems. A range of compatible accessories—including ceiling-mount brackets, tile bridges, pendant kits, and square grilles—ensures flexible and professional installation options.