Bose FreeSpace DS 40F User Manual

FreeSpace
®
DS 40F
Loudspeaker
Design Recommendations
When creating a design that uses FreeSpace
®
DS 40F loudspeakers, you should consider the following:
• FreeSpace DS 40F loudspeakers are ideally suited to background and foreground music and
paging applications. If your customer’s requirement is for a foreground music system, consider
the FreeSpace DS 100F loudspeaker. For background music systems, consider the FreeSpace
DS 16F loudspeaker.
• Recommended mounting height for the FreeSpace DS 40F loudspeaker is between 8 and 26ft
(2.4 and 8.0m).
• Maximum SPL for a typical application is between 91 and 106 dB-SPL.
• Always add 25% headroom to your amplifier to accommodate various types of program material.
Coverage requirements vary for each application, and the loudspeaker spacing will vary based
on mounting height and listener height. Use the following two steps to calculate the required
loudspeaker spacing distance for your application.
Total system sound pressure level varies based on the mounting height, loudspeaker tap and room
acoustics. For typical applications, use the chart below to determine the total sound pressure level
that will be achieved using the DS 40F loudspeakers.
*2.5-watt tap available only in 70V mode.
For more detailed information, refer to the FreeSpace DS 40F loudspeaker Design Guide.
Loudspeaker
Floor
Listener Height
Loudspeaker Mounting Heigh
Seated - 3ft | 1m
Standing - 5ft | 1.5m
Loudspeaker Throw Distance
(Loudspeaker Mounting Height - Listener Height)
t
Calculate the loudspeaker spacing distance by
multiplying the loudspeaker throw distance by
the desired coverage multiplier.
Calculate the loudspeaker
throw distance.
Loudspeaker throw distance x Coverage multiplier = Spacing
(Loudspeaker (Coverage (Spacing)
throw distance) multiplier)
___________ X __________
=
__________
1 2
Coverage Multiplier
Premium 2.0
Standard 2.5
Minimum 3.0
pro.Bose.com
6
OF 8
TECHNICAL DATA SHEET
DS 40F
Mount
m 2.4 3.0 3.6 4.2 4.8 5.5 6.1 6.7 7.3 8.0
Height
ft 8 10 12 14 16 18 20 22 24 26
2.5* 94 91 89 86 85 83 82 81 80 79
TAP (W)
5 97 94 92 89 88 86 85 84 83 82
dB-SPL
10 100 97 95 92 91 89 88 87 86 85
20 103 100 98 95 94 92 91 90 89 88
40 106 103 101 98 97 95 94 93 92 91

Bose FreeSpace DS 40F Specifications

General

Product color	Black
Housing material	Polypropylene (PP), Steel
Recommended usage	Universal
Suitable for outdoor use	No
Multi-Room Streaming (MRS) support	-
Speaker type	1-way
Driver diameter	114 mm
Number of drivers	1
Speaker enclosure	Ported
Speaker placement	In-wall/in-ceiling
Audio output channels	1.0 channels
Sensitivity	87 dB
Frequency range	70 - 19000 Hz
RMS rated power	40 W
Connectivity technology	Wired
Transformer taps	5, 10, 20, 40 W
Built-in matching transformer	Yes
Package weight	5000 g

Weight and Dimensions

Depth	153 mm
Width	- mm
Weight	3700 g
Diameter	300 mm