Custom Inwall CCM646S Owner`s Manual and Warranty - E-HiFi
Contents
1. sure the volume is not too restricted by cross studs The speakers are balanced for half space mounting ie flush in a ceiling or soffit Placement near a wall ceiling junction or in a corner may give rise to too much bass and a boomy quality to the sound Try to keep the speakers at least 0 5m 20in from wall ceiling edges The following sections give guidance on optimum positioning but this may be modified in line with domestic constraints WARNING The speakers produce a static magnetic field As such They should not be placed within 0 5m 20in of equipment that may be affected by such a field eg Cathode Ray Tubes in TVs and Personal Computers Distributed audio To maintain clarity and speech intelligibility it s important that listeners are never too far off axis of the nearest speaker The speaker spacing will depend on the height of the ceiling and the level of sound required More speakers played at a lower level will give better clarity 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 figure 1 PREPARING THE LOCATION Choosing cable Excessive resistance in the speaker cable wastes power and alters the frequency response of the speaker Always try to keep the resistance as low as possible with the loop resistance pref2. B amp W Bowers a Wilkins Custom Inwall 6465 Owner s Manual and Warrantv 8 s 85 5 m Slslolnl lolola o IZ BlB g mami OX aloe 29e ximi m B V a solo risi gls x 1 Z S O 2 vm M N miqioseajamjAaja iu qa Sis sis 35805 nij da LA 3 O W W a o slalome e A S ci Pla le Z gt MB 2 v S o o 9 20 fa m v NE N si sja si a 2 VAN La o 3 iL iz Loop Resistance 0 50 HF gt 30cm AWG 20 18 16 14 12 10 9 Figure 1a Figure 2 Figure 4 Figure 5 Frequencv response dBSPL 100 95 90 85 80 75 70 65 60 55 50 20 Hz 50 100 200 500 1K 2K Polar Response Horizontal dBSPL 95 75 90 85 80 75 70 65 60 55 50 45 50 55 60 65 70 75 80 85 90 95 Curve Freq BW 500 00 180 1 00K 180 2 00K 122 400K 102 800K 118 16 00K 71 2 0 2 0 3 0 3 5 3 0 5 1 5K DI 3 0 3 0 4 7 5 5 4 8 Tal 10K 20K Polar Response Vertical dBSPL 95 90 85 80 75 70 65 60 55 50 45 50 55 60 65 70 75 80 85 90 95 Curve Freq 500 00 1 00K 2 00K 4 00K 8 00K 16 00K 2 0 2 0 3 0 5 1 2 3 3 7 DI 3 0 3 0 47 7 1 3 5 5 6 English Limited Warrantv Dear customer welcome to B amp W This product has been desig
3. board is fitted the inner flange of the PMK serves as a guide for a hole router or saw Damping the cavitv In the ceiling drape unlined fibreglass or mineral wool matting at the back of the ceiling board covering the aperture and extending at least 30cm 1 ft around the speaker into open void figure 2 IMPORTANT Ensure that the materials vou use meet local fire and safetv regulations Fitting the speaker All connections should be made with the equipment switched off Connect the cables observing the correct polaritv With the grille removed position the speaker in the aperture and screw in the 4 screws visible from the front figure 3 These screws automatically swing out clamping dogs that locate behind the mounting surface Ensure that they have located properly before fully tightening the screws A certain amount of flexing of the frame is allowed to take up unevenness in the mounting surface but do not overtighten the screws as excessive distortion of the speaker frame may result Adjusting the speaker The switch on the front baffle provides boost or cut to the speaker s high freguency output level to compensate for listeners positioned severely off axis or a dull acoustic boost or highly reflective rooms cut figure 4 Customising The frame has a paintable white semi matte finish ready if necessary to be re finished to match your own decor Fit the paint mask before re finishing Do
4. erably below 0 5 ohms Use the table of figure 5 to calculate the minimum gauge of cable required Existing drywall construction retrofit Mark the centre position of the speaker and position the template so the mark shows through the hole in the middle 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 New drywall construction 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 Staple or nail the PMK to the studs as described in the instructions with the kit Run the cable and secure it to the PMK Allow enough length to comfortably connect the speaker but not too much as the excess mav rattle against the structure Results are affected bv how well the plasterboard is attached to the studs and we recommend gluing as well as screwing or nailing the panels to the studs in the vicinitv of the speaker Once the
5. ltered deleted removed or made illegible f if repairs or modifications have been executed by an unauthorised person 4 This guarantee complements any national regional law obligations of dealers or national distributors and does not affect your statutory rights as a customer How to claim repairs under warranty 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 amp W authorised dealer from whom the equipment was purchased 2 If the equipment is being used outside the country of purchase you should contact B amp W national distributor in the country of residence who will advise where the equipment can be serviced You can call B amp 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 Owner s manual Introduction Thank you for purchasing Bowers and Wilkins CCM 646S speakers Since its foundation in 1966 the continuing philosophy of B amp W has been the quest for perfect sound reproduction Inspired by the company s founder the late John Bowers his quest has entailed not only high investment in audio technology and innovation b
6. ned and manufactured to the highest qualitv standards However if something does go wrong with this product B8W Loudspeakers and its national distributors warrant free of charge labour exclusion mav applv and replacement parts in anv country served by an official B amp W distributor This limited warranty is valid for a period of five years from the date of purchase or two vears for electronics including amplified loudspeakers Terms and Conditions 1 The warranty is limited to the repair of the eguipment Neither transportation nor any other costs nor any risk for removal transportation and installation of products is covered by this warranty 2 This warranty is only valid for the original owner It is not transferable 3 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 a for damages caused by incorrect installation connection or packing b for damages caused by any use other han correct use described in the user manual negligence modifications or use of parts that are not made or authorised by B amp W c for damages caused by faulty or unsuitable ancillary equipment d for damages caused by accidents ightning water fire heat war public disturbances or any other cause beyond the reasonable control of B amp W and its appointed distributors e for products whose serial number has been a
7. 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 Description Drive units Freguency range Freguency response Sensitivity Nominal impedance Crossover freguency Recommended amplifier power Frame size Cut out size Min depth req Net weight PMK 28 CCM646S 2 way dual channel in ceiling speaker system 2x 25mm lin high frequency 1x 165mm 6 5 in woven fibreglass mid bass 6dB at 40Hz and 22kHz 50Hz 20kHz 3dB 86dB spl 2 83V 1m 80 minimum 3 10 3 2kHz 20W 130W continuous into 89 on unclipped programme Diameter 232mm 9 1in Diameter 205mm 8 1in 103mm 4 1in from ceiling surface 1 6kg 3 5Ib PMKc65 232m 9 1in 205mm 8 1in 103mm 4 1in 4mm 0 15in
8. ut also an abiding appreciation of music and movies to ensure that the echnology is put to maximum effect The CCM 6468 outputs the signals from wo channels from a single unit and is intended for background sound applications where channel separation is not important or desired However no matter how good the speakers themselves they will not deliver their full potential unless properly installed Please read through this manual fully It will help you optimise the performance of the system B amp W distributes to over 60 countries worldwide and maintains a network of dedicated distributors who will be able to help should you have any problems your dealer cannot resolve Check the contents This pack should contain Frame baffle with drivers and crossover Grille Paint mask Mounting template Choosing the position 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
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