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FreeSpace Surface Mount Speaker, 70V, 40W @ 8 Ohms, White


The Bose® FreeSpace® DS 40SE loudspeaker is a high-performance...
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The Bose® FreeSpace® DS 40SE loudspeaker is a high-performance, surface-mount loudspeaker designed for foreground and background music and speech reproduction in a wide range of commercial applications including retail, restaurant and hospitality establishments. This 40-watt loudspeaker can provide coverage both indoors and outdoors. Horizontal or vertical mounting options offer installation flexibility. The DS 40SE loudspeaker meets numerous standards for combination music and evacuation systems around the world when used with optional Bose junction boxes.

The FreeSpace DS 40SE surface-mount loudspeaker is engineered for installation on walls and ceilings with simple 1-2-3 installation: (1) Wire and attach the bracket (2) Secure the loudspeaker to bracket with one screw (3) Snap the wire connector into the bracket. The included bracket allows for horizontal or vertical mounting positions with either pitch or yaw adjustment. The DS 40SE loudspeaker can be used as an 8-ohm, 40-watt loudspeaker or as a 70/100V loudspeaker. An easy-to-access thumb wheel allows taps to be set quickly and simply without the use of tools. Performance of the FreeSpace DS 40SE loudspeaker can be maximized through the use of the recommended Bose loudspeaker equalization resident in select Bose electronics, or by using other equipment with parametric equalization. The loudspeaker can be used out of the box with a 70-Hz high-pass filter when recommended loudspeaker equalization is not used. The DS 40SE loudspeaker is acoustically compatible with the DS 40F flush-mount loudspeaker. They can be integrated on the same loudspeaker line. The contemporary styling of the DS 40SE easily blends with a wide variety of décors.


  • Maximum SPL of 103 dB-SPL (109 dB-SPL peak)
  • Full-range performance from 80 Hz to 16 kHz
  • 125°H x 125°V coverage pattern
  • Single 4.5" (114mm) full-range HVC (Helical Voice Coil) driver
  • Simple 1-2-3 installation
  • Pitch or yaw adjustment options:
    Horizontal mount: maximum pitch 45° or
    maximum yaw 30°
    Vertical mount: maximum pitch 30° or
    maximum yaw 45°
  • Integrated multi-tap transformer provides easy-to-change tap settings without tools:
    70V – 2.5W, 5W, 10W, 20W, 40W
    100V – 5W, 10W, 20W, 40W
  • Can be used as an 8O, 40W loudspeaker
  • Can be combined with the FreeSpace DS 40F flush-mount loudspeaker on the same loudspeaker line
  • Can be used indoors and outdoors
  • Contemporary styling; available in black or white and can be painted
  • Listed to ANSI/UL 1480-2005


  • Power handling 40W
  • Nominal Impedance (transformer bypass) 8O
  • Sensitivity (at 1W @ 1m) 87 dB-SPL
  • Maximum SPL 103 dB-SPL
    (pink noise @ 1m @ rated power) 109 dB-SPL (Peak)
  • Frequency range (-3 dB) 80 Hz – 16 kHz
  • Beamwidth (-6 dB point, average 1–4 kHz) 125°H x 125°V

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