Bowers & Wilkins CCM362 User manual

CCM362
CCM382

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www.bowers-wilkins.com
Welcome to Bowers & Wilkins and the CCM3 Series
Thank you for choosing Bowers & Wilkins. When John Bowers
first established our company he did so in the belief that
imaginative design, innovative engineering and advanced
technology were keys that could unlock the enjoyment of audio
in the home. His belief is one that we continue to share and it
inspires every product we design.
ENGLISH
Contents
ENGLISH 2
1. Unpacking 3
2. CCM3 Series Basics 3
3. Positioning CCM3 Series Speakers 3
4. Installing CCM3 Series Speakers 4
5 Using a Pre-mount Kit 5
6 Using a Back-box Kit 6

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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 ceiling
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: CCM3 Series drive units create
stray magnetic elds. 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 elds.
1. Unpacking
The CCM3 Series of ceiling mount speakers is
designed to offer easy installation and high quality
audio reproduction for discrete custom install
applications. They are particularly suitable for use in
humid environment such as swimming pools. This
manual describes the installation of CCM3 Series
speakers within conventional stud and sheetrock
(joist and plasterboard) ceilings. It begins by listing
the contents of the CCM3 series carton:
1. Two CCM3 Series speakers
2. Two CCM3 speaker grilles
3. One aperture template
4. Two paint masks
5. Quick Start Guide
6. Warranty information
2. CCM3 Series Basics
CCM3 Series ceiling mount speakers comprise a
bafe carrying the speaker drivers, crossover circuit
and connectors, and a magnetically secured grille.
The bafe is secured in the ceiling aperture by dog-
clamps that swing outwards and tighten.
Note: A square grille is optionally available for
CCM3 Series speakers. Contact your local
Bowers & Wilkins retailer for more information.
CCM3 Series speakers require ceiling aperture
and height clearance dimensions described in the
following table:
Minimum Height
Model Aperture Diameter Clearance
CCM362 204mm (8.0 in) 79mm (3.2 in)
CCM382 253mm (9.9 in) 85mm (3.4 in)
Note: If CCM3 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 CCM3 Series speakers you should
ensure that the ceiling locations chosen are free of
obstructions such as pipe work, ducting or wiring
that will interfere with the installation. In existing dry-
wall construction, use a stud-nding tool to help you
map the ceiling construction and a pipe detector to
scan the proposed installation locations.
Diagram 1
Aperture and height clearance
3. Positioning CCM3 Series Speakers
The appropriate position for CCM3 Series speakers
within the listening environment will depend on their
specic application:
General Background Audio Applications:
For applications where single CCM3 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 signicantly emphasised
low frequencies and should be avoided.
Stereo Audio Applications:
For applications where a pair of CCM3 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 CCM3 Series
speakers are to be used for multi-channel audio-
visual systems, the front and centre speakers should
be located approximately 0.5m (20 in) in front of
the plane of the screen. The centre speaker should
be on the centre line of the screen and the front
speakers each laterally within approximately 0.5m
(20 in) of the sides of the screen. Surround channel
CCM3 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.
Diagram 2
Positioning
CCM362
CCM382
3m (10 ft) - 5m (16.5ft)
3m (10 ft) -
5m (16.5ft)
0.5m (20 in)
0.5m (20 in) 0.5m (20 in)
Stereo Audio Applications
Multi-channel Audio Applications
Ø 204mm (8in)
CUTOUT
Ø 253mm (9.9in)
CUTOUT
85mm
(3.4in)
79mm
(3.2in) 0.5m (20in) 0.5m (20in)
0.5m (20in)
3m (10 ft) - 5m (16.5 ft)
3m (10 ft) -
5m (16.5 ft)

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4. Installing CCM3 Series Speakers
To install a CCM3 Series speaker proceed as
described in the following paragraphs:
4.1 Using the supplied aperture template, mark a
cut line on the ceiling. Check the cut line denes the
correct aperture diameter. Cut along the line with an
appropriate tool to create a round aperture in the
ceiling.
Note: Ensure that there is enough free space
internally adjacent to the aperture for the dog
clamps.
Note: To reduce the possibility of the ceiling
buzzing or rattling, adhesive mastic can be
applied between the studs and sheetrock in the
vicinity of the speaker aperture.
4.2 If speaker cable is already present in the ceiling
space, pull the cable down through the aperture. If
speaker cables are not already installed this should
be done at this stage. It is likely that you will need
to gain access through the oor above to route the
cables through the ceiling space.
Leave enough spare cable through the aperture to
ease connection to the speaker, but not so much
that it is likely to buzz or rattle when pushed back up
into the ceiling space. Approximately 1.0m (3 ft) is
appropriate.
Note: Always use high quality, low resistance
speaker cable. Low resistance is especially
important if the length of cable from amplier
to speaker exceeds 5m. Your local Bowers &
Wilkins retailer will be able to offer advice on
speaker cable selection if required.
4.3 Now connect the speaker cable to the spring
terminals on the side of the bafe. Ensure that the
speaker connection polarity is correct: the cable
connected to the positive terminal on the amplier
should be connected to the red spring terminal
on the frame. Similarly, the cable connected to
the negative terminal on the amplier should be
connected to the black spring terminal on the frame.
Diagram 3 illustrates cable connection.
Note: If an amplier is already connected to the
cable it should be switched off while connections
are being made to the back box.
4.4 With the speaker connected to the cable it can
be inserted into the ceiling aperture. Ensure that the
four dog clamps are rotated inwards so that they
can pass through the aperture, then lift the speaker
up so that the ange is ush on the ceiling. Take care
that the connection cable does not become trapped
anywhere.
To secure the speaker user a Phillips screwdriver
inserted through the dog-clamp access holes in
the front of the speaker. Take great care that not to
damage the speaker drive units with the screwdriver.
Engage the screwdriver with each dog-clamp screw
in turn and tighten them. Diagram 4 illustrates
inserting and securing the speaker.
Note: If the ceiling is to be painted after the
speakers have been installed, the supplied paint
mask should be used.
4.5 The grille can now be tted. The grille is held in
place magnetically so simply needs to be aligned
with the groove in the frame ange where it will click
into place. Diagram 5 illustrates tting the grille.
The CCM3 Series speaker is now installed and ready
for use.
Diagram 3
Cable connection
Diagram 4
Inserting and securing the speaker
Diagram 5
Fitting the grille

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5 Using a Pre-mount Kit
Custom install pre-mount kits enable the locations of
in-ceiling and in-wall speakers to be dened before
the sheetrock (plasterboard) is tted to the studs
(joists). Routing and cutting of speaker cable is also
made easier using pre-mount kits. A pre-mount kit
(PMK) comprises a plastic moulding that denes
the aperture size of the specic speaker model, two
perforated metal straps and four plastic clips.
To use a PMK, rst attach one strap to each side
of the moulding using the plastic clips. The PMK
assembly can now be attached to the studwork
by nailing the metal straps to the studs so that
the plastic moulding is located at the appropriate
position.
When the sheetrock (plasterboard) is subsequently
tted (marked on the outside to denote the position
of the pre-mount kit) the PMK plastic moulding
serves as an internal cut guide that signicantly
eases cutting the speaker aperture.
Diagrams 6 to 9 illustrate the PMK installation.
Diagram 6
PMK strap attachment
Diagram 7
PMK stud (joists) installation
Diagram 9
Sheetrock (plasterboard) Installation
Diagram 8
PMK cutout dimensions
Ø 257mm (10.1in)
Ø 208mm (8.2in)

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6 Using a Back-box Kit
Custom install back-box kits comprise a re-proof
box that can be tted behind in-wall or ceiling
speakers before the sheetrock (plasterboard) is tted
to the studs (joists). As well as enabling compliance
with re regulations, back-boxes also help optimise
speaker performance by providing a dened acoustic
loading volume. A minimum clearance depth of
140mm from the outer stud (joist) plane to any rear
obstruction is required to t a back-box.
Back-boxes incorporate holed side anges that are
intended to be nailed to adjoining studs (joists). All
the nail holes should be used to help minimise the
risk of the ange vibrating against the stud (joist)
when the speaker is in use.
Speaker cable is bought into back-boxes via sealing
glands. Once the cable has been brought through
the gland, and the gland tightened, re-retardant
sealing mastic should be used to seal the assembly.
Ensure that a generous length of cable is available
in the back-box before the gland is sealed. A cable
clamp adjacent to the gland provides cable strain
relief.
When the sheetrock (plasterboard) is tted over the
back box a generous bead of re-retardant sealing
mastic should be applied to the back box anges
in order to seal the assembly and minimise the
possibility of vibration when the speaker is in use.
Diagrams 10 to 12 illustrate back-box installation.
Diagram 10
Back-box stud (joists) installation
Diagram 11
Cable installation
Diagram 12
Sheetrock (plasterboard) Installation