Bose FreeSpace DS 100F



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Bose FreeSpace DS 100F

Bose FreeSpace DS 100F ceiling-mount loudspeaker (Product Code 040804 black, 040805 white)

Bose FreeSpace DS 100F, premier high-performance, extended-range, flush-mount loudspeaker designed for foreground music and speech reproduction in a wide range of installed applications. High output and wide, 160° conical pattern with a frequency range down to 60 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.

Extended-range, high output loudspeaker with a single 2.25″ (57 mm) Twiddler® driver and 5.25″ (133 mm) woofer in ported enclosure to deliver a 160° conical coverage pattern for flush-ceiling or pendant-mount applications in ceilings up to 32 ft (10 m) high

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

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

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

Architects’ and Engineers’ Specifications

The loudspeaker shall be a 100 watt, ported loudspeaker system utilizing one 2.25″ (57 mm) mid-high frequency driver and a separate 5.25″ (133 mm) woofer. The loudspeaker shall be designed for installation in ceilings up to 32 ft (10 m) high. An optional pendant-mount accessory allows the loudspeaker to be hung from open ceilings.

The loudspeaker shall have a nominal rated impedance of 8 ohms and shall be wired in parallel with a line voltage matching (stepdown) transformer with a level selector appropriate for various output taps. The loudspeaker input connections will allow for direct connection to 70 volt, 100 volt or low-impedance amplifiers.

Exposed cosmetic surfaces of the loudspeaker shall be paintable, and the acoustically transparent grille component shall be formed of powder-coated steel.

Each loudspeaker shall have a bandwidth of 75 Hz – 18 kHz and a maximum continuous acoustic output of 105 dB SPL referenced to a full bandwidth pink noise input at 1 meter at the loudspeaker’s rated power. The input connection shall consist of a three-terminal barrier strip. The loudspeaker shall be plenumrated for use in air handling spaces. The loudspeaker shall meet numerous standards for combination music and evacuation systems around the world.

Power settings available shall be: 12.5, 25, 50, and 100 watts at 70 volts; 25, 50, and 100 watts at 100 volts; and 100 watts at 8 ohms (when referenced to IEC noise for 100 hours). The nominal dispersion shall be 160° conical coverage pattern at -6 dB (average 1 – 4 kHz).

The loudspeaker shall be the Bose® FreeSpace® DS 100F loudspeaker.

Technical Summary

Frequency Response (+/-3 dB)
75 Hz – 18 kHz

Frequency Range (-10 dB)
60 Hz – 20 kHz

Nominal Dispersion
160° conical

Long-Term Power Handling
100 W (400 W peak)

Sensitivity (SPL / 1 W @ 1 m)
85 dB SPL

Maximum SPL @ 1 m
105 dB SPL (111 dB SPL peak)

Nominal Impedance
8 Ω (transformer bypassed)

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