User manual B&W CCM 646S

[. . . ] You can call B&W in the UK or visit our web site to get the contact details of your local distributor. To validate your warranty, you will need to produce this warranty booklet completed and stamped by your dealer on the date of purchase. Alternatively, you will need the original sales invoice or other proof of ownership and date of purchase. Placement near a wall/ceiling junction or in a corner may give rise to too much bass and a boomy quality to the sound. [. . . ] We recommend that the distance between adjacent speakers is no more then 3 times the distance between average ear height and the ceiling. For any given spacing, there will be fewer weak spots with a triangular grid than a rectangular one. Neither transportation, nor any other costs, nor any risk for removal, transportation and installation of products is covered by this warranty. This warranty is only valid for the original owner. This warranty will not be applicable in cases other than defects in materials and/or workmanship at the time of purchase and will not be applicable: for damages caused by incorrect installation, connection or packing, for damages caused by any use other than correct use described in the user manual, negligence, modifications, or use of parts that are not made or authorised by B&W, for damages caused by faulty or unsuitable ancillary equipment, for damages caused by accidents, lightning, water, fire heat, war, public disturbances or any other cause beyond the reasonable control of B&W and its appointed distributors, for products whose serial number has been altered, deleted, removed or made illegible, if repairs or modifications have been executed by an unauthorised person. This guarantee complements any national/regional law obligations of dealers or national distributors and does not affect your statutory rights as a customer. Always try to keep the resistance as low as possible with the loop resistance preferably below 0. Use the table of figure 5 to calculate the minimum gauge of cable required. Trace round the outer edge of the template and cut neatly just inside the line. To improve the mechanical integrity of the ceiling and reduce the likelihood of rattles, we recommend you apply a bead of wood glue or mastic along the joints between the back of the plasterboard and the studs in the vicinity if the speaker. Run the cable to the aperture, allowing enough length to comfortably connect the speaker, but not too much, as the excess may rattle against the structure. This pack should contain: Frame/baffle with drivers and crossover Grille Paint mask Mounting template Check that there is no conflict with other installations (pipe work, air conditioning, power cabling etc. In existing drywall construction, use a stud-finding tool to map the construction accurately and a pipe detector to scan the proposed installation position. Ensure that there is enough clearance behind the plasterboard (sheetrock) for the clamps to swing out fully. avoid installing the speakers in the same cavity as flimsy ducting , which may be induced to rattle. The speakers are designed to operate satisfactorily in a wide range of cavity volumes, ideally above 10 litres (0. 4 cu ft), so make sure the volume is not too restricted by cross studs. Should service be required, please follow the following procedure: 1 If the equipment is being used in the country of purchase, you should contact the B&W authorised dealer from whom the equipment was purchased. If the equipment is being used outside the country of purchase, you should contact B&W national distributor in the country of residence who will advise The speaker can be installed once the ceiling is completed in the same manner as retrofitting, but it is easier to position and cut the hole if the optional pre-mount kit (PMKc65) is used before the plasterboard (sheetrock) is fitted. Connect the speaker, but not too much, as the excess may rattle against the structure. [. . . ] Do not re-finish the drive units or baffle area behind the grille. avoid touching the drive units , as damage may result. Before painting the grille, peel off the fabric scrim from the back, otherwise the pores will get clogged and the sound will be impaired. If the scrim does not stay in place properly when replaced, spray the back of the grille mesh (NOT the scrim) with a light coating of 3M SprayMount adhesive or similar. [. . . ]