FreeSpace® DS 16F
loudspeaker
Key Features
• 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 pendantmount applications
• 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
• 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
Product Overview
The Bose® FreeSpace DS 16F is the entry-level member of the DS loudspeaker family. It is a high-performance, full-range, flush-mount
loudspeaker designed for background music and speech reproduction in a wide range of installed applications. The DS 16F features a
wide, even 140° conical pattern and frequency range down to 80 Hz.
TECHNICAL DATA SHEET
Technical Specifications
System Performance
Frequency Response (+/-3 dB)
Frequency Range (-10 dB)
Nominal Dispersion 140° conical
Recommended High-Pass Filter 80 Hz high-pass filter
Loudspeaker EQ Recommended
Long-Term Power Handling
Sensitivity (SPL / 1 W @ 1 m)
Maximum SPL @ 1 m
Nominal Impedance 8 Ω (transformer bypassed)
Transformer Taps (70/100 V) 70 V: 1 W, 2 W, 4 W, 8 W, 16 W
Transducers
Driver Compliment 2.25" (57 mm) full-range driver
Physical
Enclosure PC/ABS
Grille Powder-coated steel grille
Environmental Indoor use only
Connectors Three-terminal barrier strip. Optional accessory available for use when ceramic connector and thermal fuse are required.
Suspension / Mounting Three integrated quick-install mounting arms. Three mounting points at the rear of the enclosure for use with optional accessory pendant mount
Dimensions Outer flange diameter: 9.4" (239 mm)
Ceiling Thickness (Maximum) 1.5" (38 mm)
Net Weight 4.4 lb (1.9 kg)
Shipping Weight 6.0 lb (2.7 kg)
Product Code
Black 043053
White 043054
Footnotes:
1 Frequency response and range measured on-axis with recommended active EQ in an anechoic environment.
2 Power handling tested using pink noise filtered to meet IEC 268-5, 6 dB crest factor, 100 hours, with recommended EQ.
3 Sensitivity measured in free field (no boundary-loading gain) with recommended active EQ, referenced to 1W/1m.
4 Maximum SPL calculated from sensitivity and power handling specifications, exclusive of power compression.
1
1
2
3
4
95 Hz - 17 kHz
80 Hz - 19 kHz
16 W (64 W peak)
84 dB SPL
96 dB SPL (102 dB SPL peak)
100 V: 2 W, 4 W, 8 W, 16 W
Wire gauge: 18 AWG (0.8 mm) to 14 AWG (2.0 mm)
kit. Safety cable attachment: .35" (8.9 mm) diameter hole on junction box
Depth: 6.9" (176 mm)
Ceiling hole diameter: 8.0" (203 mm)
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FreeSpace® DS 16F
loudspeaker
Directivity Index and Q
Beamwidth
TECHNICAL DATA SHEET
Impedance
On-Axis Response
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FreeSpace® DS 16F
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Tap Chart
TECHNICAL DATA SHEET
Mechanical Diagrams
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FreeSpace® DS 16F
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Horizontal Plots
TECHNICAL DATA SHEET
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FreeSpace® DS 16F
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Vertical Plots
TECHNICAL DATA SHEET
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FreeSpace® DS 16F
loudspeaker
Architects’ and Engineers’
Specifications
The loudspeaker will be a 16 watt, ported loudspeaker system
utilizing one 2.25" (57 mm) full-range driver. The loudspeaker
shall be designed for installation in ceilings up to 20 ft (6.1
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 selector switch 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 95 Hz – 17 kHz
and a maximum continuous acoustic output of 96 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 meet numerous
standards for combination music and evacuation systems around
the world.
Power settings available shall be: 1, 2, 4, 8, and 16 watts at
70 volts; 2, 4, 8, and 16 watts at 100 volts; and 16 watts at 8
ohms (when referenced to IEC noise for 100 hours). The nominal
dispersion shall be 140° conical coverage pattern at -6 dB
(average 1 – 4 kHz).
The loudspeaker shall be the Bose® FreeSpace® DS 16F
loudspeaker.
TECHNICAL DATA SHEET
Safety and Regulatory
Compliance
The FreeSpace® DS 16F loudspeaker has passed extensive
testing and complies with the following specifications and
uses:
Listed to ANSI/UL 1480-2005
• Fire Protective Signaling Use – UL Category UUMW, File
Number S 3241. Control Number 42S9. Not for use with
DC-supervised systems
• General-Purpose Use – UL Category UEAY, File Number
S 5591 Control Number 3N89
• Suitable for use indoors in damp locations
• Suitable for installation using Class 1, Class 2 or Class
3 wiring methods in accordance with NFPA 70, National
Electric Code, 2002, Article 640
• Suitable for use with fire alarm circuit wiring methods in
accordance with NFPA 70, National Electric Code, 2002,
Article 760
• Suitable for use in air handling plenum spaces with a
model PC-16 Plenum Cover installed
• UL-2043, Fire Test and Visible Smoke Release for
Discrete Products and their Accessories Installed in Air
Handling Spaces
• NFPA 70, National Electric Code, 2002, Article 300-22 (c)
• NFPA 90-A, 2002, Installation of Air Conditioning and
Ventilation Systems, Paragraph 4.3.10.2.6.5
• EMC Directive 89/336/EEC and Article 10 (1) of the
directive, EN50081-1 and EN50082-1 as signified by the
CE mark
The DS 16F also has been designed to the requirements
defined in the following European regulatory specifications
for combination systems:
• British Standard Code of Practice BS 5839, Part 8 (with
PC-16)
• Tested to IEC60268-5
All information subject to change without notice.
All trademarks are those of their respective owners.
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