Bowers & Wilkins manual Unpacking, CWM3 Series Basics, Positioning CWM3 Series Speakers

1. Unpacking

CWM3 Series in-wall speakers are designed to offer easy installation and high quality audio reproduction for discrete custom install applications. They are particularly suitable for use in humid environments such as swimming pools. This manual describes the installation of CWM3 Series speakers within conventional stud and sheetrock (joist and plasterboard) walls. It begins by listing the contents of the carton:

1.Two CWM3 Series speakers

2.Two CWM3 Series speaker grilles

3.Two aperture templates

4.Two paint masks

5.Quick Start Guide

6.Warranty information

2. CWM3 Series Basics

CWM3 Series in-wall speakers comprise a baffle carrying the speaker drivers, crossover circuit and connectors, and a magnetically secured grille. The baffle is secured in the wall aperture by dog-clamps that swing outwards and tighten.

CWM3 Series in-wall speakers require wall aperture and minimum depth clearance as follows:

Model  CWM362

Aperture Height  275mm (10.9 in) Aperture Width  181mm (7.2 in) Minimum Depth Clearance  76mm (3 in)

Note: If CWM3 Series speakers are to be installed in “new build” projects, pre-mount kits and back boxes are available. Use of pre-mount kits is described in Section 5. Use of back-boxes is described in the separate CI300 Back-box Installation document.

Before installing CWM3 Series speakers you should ensure that the wall locations chosen are free of obstructions such as pipe work, ducting or wiring that will interfere with the installation. In existing

3.Positioning CWM3 Series Speakers

The appropriate position for CWM3 Series speakers within the listening environment will depend on their specific application:

General Background Audio Applications:

For applications where single CWM3 Series speakers are required to operate independently to provide background audio, they can be located substantially as installation convenience and architecture dictate. The only acoustic constraint to bear in mind is that corner locations will result in significantly emphasised low frequencies and should be avoided.

Stereo Audio Applications:

For applications where a pair of CWM3 Series speakers is to be used for conventional stereo reproduction, they should be located between 3m (10 ft) and 5m (16.5ft) apart and a similar distance in front of the listening area. Try to avoid corner locations for the speakers and to ensure that acoustic environment around each speaker is similar.

Note: Different acoustic environments might be, for example, a bare wall and a heavily curtained window.

Multi-channel Audio Applications

For applications where multiple CWM3 Series speakers are to be used for multi-channel audio visual systems, the left and right front speakers should be located either side of the screen approximately 0.5m (20 in) away. The centre channel speaker should be located either directly above or below the screen or, in the case of an acoustically transparent screen, directly behind. Surround channel CWM3 Series speakers should be located just behind and either side of the listening position. Try to avoid corner locations for any of the speakers and to ensure that the acoustic environment around each front and surround speaker is similar.

Note: Different acoustic environments might be, for example, a bare wall and a heavily curtained window.

Diagram 2 illustrates the general speaker location guidelines.

Note: The nature of the installation of in-wall speakers means that it is sometimes impractical to locate them in the acoustically ideal positions. In these cases they should be located as close as is practical to the ideal positions. Your local Bowers & Wilkins retailer will be able to offer advice if required.

Note: CWM3 Series drive units create stray magnetic fields. We recommend that magnetically sensitive items such as CRT screens and magnetic cards for example, are kept at least 0.5m (20 in) from the speaker. LCD and plasma screens are not affected by magnetic fields.

ENGLISH

dry-wall construction, use a stud-finding tool to help you map the wall construction and a pipe detector to

Stereo Audio Applications

scan the proposed installation locations.

3m (10 ft) - 5m (16.5 ft)

	ft) -
3m (10 ft) -
5m	(16.5
	(16.5ft)

76mm(3in)

	Multi-channel Audio Applications
(10.9in)	181mm (7.2in)
	0.5m (20in)	0.5m (20in)
275mm

Diagram 1	Diagram 2
Aperture and height clearance	Positioning

0.5m (20in) 0.5m (20in)

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