Bowers & Wilkins CCM362 Mode D'emploi page 4

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 defines 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 floor 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 amplifier
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 baffle. Ensure that the
speaker connection polarity is correct: the cable
connected to the positive terminal on the amplifier
should be connected to the red spring terminal
on the frame. Similarly, the cable connected to
the negative terminal on the amplifier should be
connected to the black spring terminal on the frame.
Diagram 3 illustrates cable connection.
Note: If an amplifier 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 flange is flush 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 fitted. The grille is held in
place magnetically so simply needs to be aligned
with the groove in the frame flange where it will click
into place. Diagram 5 illustrates fitting 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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