BOSE 294951-SM Schematic

FreeSpace® DS 16S and DS 16SE

Loudspeakers

(Indoor and Outdoor Versions)

©2009 Bose Corporation

Service Manual

Reference Number 294951-SM Rev . 01

CONTENTS

Warranty Information.........................................................................................................................2

Specifications....................................................................................................................................3

Product Description .........................................................................................................................4

Part List Notes ..................................................................................................................................4

Packaging List, FreeSpace

Figure 1. FreeSp ace DS 16S and DS 16SE Packaging View ..........................................................5

Main Part List, FreeSpace DS 16S Loudspeaker (Indoor Version) ............................................. 6

Figure 2. FreeSp ace DS 16S (Indoor V ersion) Exploded V iew.........................................................6

Main Part List, FreeSpace DS16 SE Loudspeaker (Outdoor Version) ........................................ 7

Figure 3. FreeSp ace DS 16SE (Outdoor Version) Exploded View ...................................................7

Main Part List, Basic Elevation Bracket (included with loudspeaker)........................................8

Figure 4. Basic Elevation Bracket Exploded View ............................................................................8

Disassembly Procedures .................................................................................................................9

Test Procedures .............................................................................................................................10

Figure 5. Loudspeaker Wiring Diagram .........................................................................................10

Service Manual Revision History .................................................................................................11

®

DS 16S and DS 16SE Loudspeakers ..............................................5

CAUTION: The Bose® FreeSpace® DS 16S and DS 16SE Loudspeakers

contain no user-serviceable parts. To prevent warranty infractions,

refer servicing to warranty service stations or factory service.

WARRANTY INFORMATION

The Bose FreeSpace DS 16S and DS 16SE Loudspeakers are covered by a

5-year transferable limited warranty .

PROPRIET ARY INFORMATION

THIS DOCUMENT CONT AINS PROPRIET ARY INFORMA TION OF
BOSE CORPORA TION WHICH IS BEING FURNISHED ONLY FOR
THE PURPOSE OF SERVICING THE IDENTIFIED BOSE PRODUCT
BY AN AUTHORIZED BOSE SERVICE CENTER OR OWNER OF
THE BOSE PRODUCT, AND SHALL NOT BE REPRODUCED OR
USED FOR ANY OTHER PURPOSE.

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SPECIFICATIONS

FreeSpace® Model DS 16S and DS 16SE Loudspeakers

Electrical

Loudspeaker Impedance: 8 ohms
Power Handling: 16 Watts
70V Transformer TAP Settings: 1, 2, 4, 8 and 16W

100V Transformer TAP Settings: 2, 4, 8 and 16W

Acoustical

Sensitivity: 84 dB SPL @1W/1m.
Maximum Sound Pressure Level: 96 dB SPL @ 1m (pink noise)
Frequency Range: 90Hz - 16kHz
Radiation Pattern: 90 degrees conical averaged from 1kHz to 6 kHz
Compression: < 3 dB with 32W watt sine wave
Distortion: < 30% at 32W sine wave
Port Noise: < -40dB (from fundamental)

Mechanical

Dimensions, Single Speaker: (W) 9.85 in x (D) 4.61 in x (H) 4.88 in

(250 mm x 117 mm x 124 mm)

Packed System: (W) 12.6 in x (D) 9.1 in x (H) 9.0 in

(320 mm x 231 mm x 229 mm)

System Weight: Single Speaker: 4.0 lbs (1.8 kg)

Packed System: 5.1 lbs (2.3 kg)

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PRODUCT DESCRIPTION

The FreeSpace® DS16 S and DS16 SE are the entry level surface-mount speakers for business
music applications. They consist of a single 2.25" driver in a rugged, plastic enclosure. There are
two variants of the DS16 Loudspeaker , an indoor version qualified for use where it is not exposed
to weather and an outdoor version qualified for use fully exposed to weather .

The indoor and outdoor variants are each available in two colors, black and white. They ship with
a basic bracket allowing for pitch adjustments. An upgraded bracket is available that allows the
speaker to be life safety compliant for the worldwide market. The upgraded bracket allows left to
right (yaw) adjustments in addition to up and down (pitch) adjustments. When used with the
upgraded bracket the surface mount DS16 loudspeaker is life safety compliant as described
below.

The DS 16S and DS 16SE have passed extensive testing and comply 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 when installed with a junction box (on-wall or in-wall). Not for use with DC-supervised
systems.

• General Purpose Use – UL Category UEAY, File Number S 5591 Control Number 3N89.

• The DS 16SE is suitable for use outdoors in wet locations.

• The DS 16S is suitable for use indoors in damp locations.

• Suitable for installation using Class 1, Class 2, or Class 3 wiring methods in accordance with

NFP A 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.

• 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 16S and DS 16SE also have been designed to the requirements defined in the following
European regulatory specification for combination systems:

• British Standard Code of Practice BS 5839, Part 8.

• T ested to IEC60268-5.

PART LIST NOTES

1. This part is not normally available from Customer Service. Approval from the Field Service

Manager is required before ordering.

2. The individual parts located on the PCBs are listed in the Electrical Part List.

3. This part is critical for safety purposes. Failure to use a substitute replacement with the

same safety characteristics as the recommended replacement part might create shock, fire
and/or other hazards.

4. This part is referenced for informational purposes only. It is not stocked as a repair part.
Refer to the next higher assembly for a replacement part.

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