Bowers & Wilkins manual Installing CCM6 Series Speakers

To install a CCM6 Series speaker proceed as described in the following paragraphs:

4.1Using the supplied cut-out template, mark a cut line on the existing ceiling. Check the cut line defines the correct 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 spring 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.

4.2If 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 back box, 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.

4.3Now connect the speaker cable to the spring terminals on the side of the frame. 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. The diagram above illustrates cable connection.

When connecting a CCM664SR or CCM663SR in surround mode, simply connect the speaker cable to either the left or right set of terminals. Please ensure that the switch on the back is set to surround.

Note: If an amplifier is already connected to the cable it should be switched off while connections are being made to the frame.

4.4With the frame connected it may be lifted up into the ceiling aperture. On speakers with tilting tweeters, correct frame orientation must be established at this stage: the red arrow on the frame flange should be pointing towards the listening area.

Ensure that the four QuickDog™ (spring clamps) are rotated so that they will pass through the aperture then lift the frame up so that the flange is flush on the ceiling. Take care that the cable is not trapped. Now reach inside the aperture with one hand, rotate the QuickDogs™ outwards and, using two fingers and thumb, pull each QuickDog™ downwards so that the frame is fixed securely. The diagram above illustrates insertion of the frame.

Note: To release a QuickDog™ push the metal tab, located just below the finger platform, upwards.