BOSE 303290-SM Schematic

FreeSpace® DS 16F

Loudspeaker

Service Manual

Reference Number 303290-SM Rev . 00

Contents

Description Product Code

Warranty .............................................................................................................................................2

Accessories .......................................................................................................................................2

Safety and Regulatory Compliance.................................................................................................3

Product Description .........................................................................................................................3

Specifications....................................................................................................................................4

Packaging Part List, FreeSpace® DS 16F Loudspeaker ............................................................... 5

Figure 1. FreeSp ace DS 16F Loudspeaker Packing V iew ..................................................................5

Main Part List, FreeSpace Model 16F ............................................................................................ 6

Figure 2. FreeSpace DS 16F Exploded V iew......................................................................................6

Disassembly Procedures .................................................................................................................7

Test Procedures ...............................................................................................................................8

DS 16F Test Setup Diagram.............................................................................................................8

CAUTION: The Bose® FreeSpace DS 16F loudspeaker contains

no user-serviceable parts. To prevent warranty infractions,

refer servicing to warranty service stations or factory service.

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.

W arranty

The Bose FreeSpace DS 16F loudspeaker is covered by a five year transferable limited warranty.

Accessories

Model 16 tile bridge (6 pack) 029830 Model 16 rough-in pan (6 pack) 029831 Model 16 retrofit kit (6 pack) 030096 PC-16 plenum cover (6 pack) 031144 Model 16 pendant mount kit, black 030094 Model 16 pendant mount kit, white 030095

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 CategoryUUMW , File Number S 3241. Control

Number42S9. Not for use with DC-supervised systems.

• General-Purpose Use – UL Category UEA Y, FileNumber S 5591 Control Number 3N89.

• Suitable for use indoors in damp locations.

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

NFP A70, National Electric Code, 2002, Article 640.

• Suitable for use with fire alarm circuit wiringmethods in accordance with NFPA 70,National

Electric Code, 2002, Article 760.

• Suitable for use in air handling plenum spaceswith a model PC-16 Plenum Cover installed.

• UL-2043, Fire Test and Visible Smoke Releasefor Discrete Products and their Accessories

Installed in Air Handling Sp aces.

• NFP A 70, National Electric Code, 2002, Article300-22 (c).

• NFP A 90-A, 2002, Inst allation of Air Conditioningand V entilation 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 therequirements defined in the following Europeanregulatory specifications for combination systems:

• British Standard Code of Practice BS 5839, Part8 (with PC-16).

• T ested to IEC60268-5.

Product Description

The DS 16F loudspeaker is a 16-watt, ported loudspeaker system utilizing one 2.25" (57mm) full-range driver. The loudspeaker is designed for installation in ceilings up to 20f t (6.1m) high. An optional pendant-mount accessory allows the loudspeaker to be hung from open ceilings.

The loudspeaker has a nominal ratedimpedance of 8 ohms and is wired in parallel with a line voltage matching (step-down) transformer with a selector switch appropriate for various output taps. The loudspeaker input connections allow for direct connection to either 70V, 100V or lowimpedance amplifiers.

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

Each loudspeaker has a bandwidth of 90 Hz – 16 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 consists of a three-position barrier connector with a pre-wired ceramic connector. The loudspeaker meets numerous standards for combination music and evacuation systems around the world.

Power settings available are: 1W, 2W, 4W, 8W, 16W @ 70V; 2W, 4W, 8W, 16W @ 100V; and 16W @ 8½ (when referenced to IEC noisefor 100 hours). The nominal dispersion is 140°conical coverage pattern at -6 dB (average 1 – 4 kHz).

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