BOSE FreeSpace DS 40F Black

Versatile, high-performance, full-range, flush-mount loudspeaker designed for foreground and background music and speech reproduction in a wide range of installed applications. High output and 125° conical pattern with a frequency range down to 70 Hz.

For indoor applications only.

EN 54-24 compliant DS loudspeaker models are also available for use in Voice Alarm (VA) systems. Please contact your local Bose team for availability information.



• Full-range loudspeaker with a single 2.25" (57 mm) driver in a ported enclosure to deliver a 140° conical coverage pattern and clear, intelligible music and speech reproduction for flush-ceiling or pendant-mount applications

• Integrated multi-tap transformer with innovative thumb wheel adjustment for easy-to-change tap setting from underneath the loudspeaker grille

• Shortcan design allows installation in shallower ceilings with minimum depth of 6.4" (163 mm)

• Shared voicing across entire FreeSpace DS product family enables DS 16, DS 40 and DS 100 loudspeakers to be integrated on the same system and maintain consistent tonal quality

• Can be combined with either surface- or flush-mount FreeSpace 3 Acoustimass® module for extended bass response

• Supported by a suite of accessories, including ceiling-mount bracket, adjustable tile bridge, pendant-mount kit and square grille


Technical Summary:

• Frequency Response (+/-3 dB): 80 Hz - 17 kHz / 70 Hz - 19 kHz @ -10dB

• Maximum SPL @ 1 m: 103 dB SPL (109 dB SPL peak)

• Nominal Dispersion: 140° conical

• Long-Term Power Handling: 40 W (160 W peak)

• Nominal Impedance: 8 Ohms (transformer bypassed)