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Custom Installation Series CWM DS8 Owner’s Manual and Warranty Contents English Limited Warranty...........2 Owner’s Manual............2 Français Garantie limitée.............4 Manuel d’utilisation .......4 Deutsch Garantie .......................6 Bedienungsanleitung.....6 Español Garantía limitada...........8 Manual de instrucciones ................9 Português Garantia limitada.........11 Manual do utilizador....11 Русский Ограниченная гарантия....................20 Руководство по эксплуатации ............20 "esky Záruka .......................23 Návod k pouãití..........23 Magyar Korlátozott garancia ..25 Használati útmutató ...25 Polski Gwarancja .................27 Instrukcja uÃytkownika ...............27 .......................29 .....................29 .......................31 ....................31 1 English where the equipment can be serviced. You can call B&W in the UK or visit our web site to get the contact details of your local distributor. Limited Warranty Dear customer, welcome to B&W. This product has been designed and manufactured to the highest quality standards. However, if something does go wrong with this product, B&W Loudspeakers and its national distributors warrant free of charge labour (exclusion may apply) and replacement parts in any country served by an official B&W distributor. This limited warranty is valid for a period of five years from the date of purchase or two years for electronics including amplified loudspeakers. Terms and Conditions 1 2 The warranty is limited to the repair of the equipment. 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. 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 than correct use described in the user manual, negligence, modifications, or use of parts that are not made or authorised by B&W, c. for damages caused by faulty or unsuitable ancillary equipment, d. 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, 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. The following sections give guidance on optimum positioning, but this may be modified in line with domestic constraints. Introduction WARNING: The speakers produce a static magnetic field. 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). Thank you for purchasing Bowers and Wilkins CWM speakers. Since its foundation in 1966, the continuing philosophy of B&W has been the quest for perfect sound reproduction. Inspired by the company’s founder, the late John Bowers, this quest has entailed not only high investment in audio technology and innovation but also an abiding appreciation of music and movies to ensure that the technology is put to maximum effect. These CWM speakers are primarily intended for in-wall applications, but may equally well be used in-ceiling. 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&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: for products whose serial number has been altered, deleted, removed or made illegible, f. if repairs or modifications have been executed by an unauthorised person. Choosing the position 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 2 2 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 speakers are balanced for half-space mounting (ie flush in a wall or ceiling). 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. Owner’s manual • • • • • • e. In solid wall construction, be prepared to provide a cavity in the wall that extends outside the boundaries of the speaker’s frame, otherwise bass performance will be compromised. wall frame baffle with drive units and crossover grille with backing scrim fabric paint mask mounting template 6x M6 screw 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. Refer to the section drawing of the speaker and 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 20 litres (0.7 cu ft), so make sure the volume is not too restricted by cross studs. Surround speakers The speakers should be positioned 60cm (2 ft) or more above head height. 5.1 channel If it is desired to use both dipole and monopole modes, the horizontal angle to the centre of the listening position should be approximately 120º round from the centre of the screen. (figure 1) If only dipole mode is required, position the speakers in line with the centre of the listening area. (figure 2) 6.1 channel Position two speakers to the sides in line with the centre of the listening area and one centrally behind the listeners (figure 3) 7.1 channel Position two speakers to the sides in line with the centre of the listening area and two behind the listeners, subtending an angle of approximately 40º. (figure 4) 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 preferably below 0.5 ohms for non-critical applications and below 0.2 ohms for best results. Use the table of figure 14 to calculate the minimum gauge of cable required. If remote switching between monopole and dipole modes is required, an extra 2-core cable is needed for the 12V trigger. At the speaker end, strip back the insulation to leave bare wire ends. It is usual for the 12V trigger output of a processor to take a 3.5mm jack plug. Existing drywall construction (retrofit) Position the template at the desired location of the speaker. The template is marked with both vertical and horizontal centre lines to aid alignment. Trace round the outer edge of the template and cut neatly just inside the line. To improve the mechanical integrity of the wall 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 wall is completed in the same manner as retrofitting, but it is easier to position and cut the hole if the optional pre-mount kit 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 fixing point on the PMK. Allow enough length to comfortably connect the speaker, but not too much, as the excess may rattle against the structure. Results are affected by 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 vicinity of the speaker. Once the board is fitted, the inner flange of the PMK serves as a guide for a hole router or saw. If extra acoustic isolation to adjoining rooms is required or some protection against the spread of fire, use the optional back box in place of the PMK. Follow the instructions with the back box for fitting and running the cable. When fitting the plasterboard, use mastic between the sheets and the back box to avoid rattles. Rout or saw out the speaker aperture using the backbox flange as a guide. Depending on the diameter of the router, you may need to square off the corners with a saw. Solid wall construction In order for the bass performance not to be compromised, the speaker requires a cavity volume of at least 20 litres (0.7 cu ft). This means that, in a standard 10cm (4 in) thick wall, the cavity will extend beyond the boundaries of the speaker frame. It is possible to provide this cavity simply by using a lintel, covering the hole with plasterboard and fitting the speaker as described above for retrofitting into a drywall. (figure 5) However, the back box provides a useful means of defining the minimum volume required. Follow the instructions with the back box for fitting and running the cable. If using a wet plaster finishing method, first paint a layer of PVA adhesive onto the back box before plastering to avoid rattles as a result of the plaster shrinking away from the back box as it dries. If using plasterboard, stick the sheets to the surfaces of the back box using flexible mastic. Rout out the aperture using the flange as a guide. Depending on the diameter of the router, you may need to square off the corners with a saw. In all cases, we recommend not using cement or mortar to fix the back box into the brick or blockwork. rattles are best avoided by using flexible mastic and wedges. (figure 6) Damping the cavity Fill the wall cavity or back box, but not the space immediately behind the speaker, with unlined fibreglass or mineral wool matting. The packing density should be just enough to comfortably prevent the material from dropping or sagging over time. In an open wall cavity, fill to a distance of at least 30cm (1 ft) above and below the speaker. (figure 7) In the ceiling, drape the 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 8) IMPORTANT: Ensure that the materials you use meet local fire and safety regulations. Fitting the speaker All connections should be made with the equipment switched off. With the grille removed, position the wall frame in the aperture and screw in the 6 screws visible from the front. (figure 9) 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. If required, the wall frame and grille mesh should be painted at this stage, before fitting the baffle. See also the section “Customising” below. Connect the signal cable to the gold plated spring loaded input terminals on the crossover and the trigger cable, if used, to the plastic spring terminals. Ensure the correct polarity is observed in both cases. (figure 10) remove the baffle, loosen the clamps and re-tighten them more evenly. Fine tuning The choice of monopole or dipole mode may depend on the type of programme being played, the speaker’s position in the installation and, of course, personal preference. Multi-channel music often has more directional cues in the surround sound field and it may be preferable to have all the speakers set to monopole. Movie sound is usually more convincing with a diffuse sound field and it is usual to set at least the side speakers to dipole. Rear speakers in 6.1 and 7.1 installations are sometimes set to monopole, even if the side speakers are set to dipole, but dipole all round is also an option. Experiment to find the best settings for your situation. The 12V trigger option may be used to automatically set different modes for different types of programme. Some processors can detect whether the programme being played is music or movie and assign a trigger accordingly. Some others can assign a trigger to the input socket being used and you may wish to use a different player for music than that used for movies. Customising The frame has a paintable white semi-matte finish, ready if necessary to be re-finished to match your own decor. If you do not wish to remove the speaker baffle, fit the paint mask before re-finishing. 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. There are 2 switches on the crossover. One is marked ‘dipole’ and ‘monopole’. In the ‘dipole’ position, the speaker is in dipole mode, whatever the status of the 12V trigger. In the ‘monopole’ position, the speaker is in monopole mode unless 12V is applied to the trigger input, when the speaker becomes dipole. The second switch is marked ‘A’ and ‘B’. When viewed from the front, the positive dipole lobe goes to the right of the speaker when the switch is at ‘A’ and to the left when the switch is at ‘B’. (figure 11). Set the lobes as shown in figure 12, according to the position of the speaker. Fit the baffle into the wall frame using the 6 screws provided. (figure 13) Fit the grille mesh. If the slot width has become distorted by overtightening the wall frame clamps, it will be necessary to 3 1 2 Conditions 1 2 3 a. b. c. d. e. f. 4 4 5 1 2. Garantiebedingungen 1. 2. 3. a. b. c. d. e. f. 4. 6 • • 7 8 2 3 a. b. c. d. e. f. 4 2 • • • • • • 9 10 2 1 2 3 a. b. c. d. e. f. 4 • • • • • • 11 12 Garanzia limitata 2 3 a. b. c. d. e. f. 4 2 13 14 Voorwaarden 1 2 3 a. voor schade die veroorzaakt is door onjuiste installatie, aansluiting of verpakking; b. c. d. e. f. 4. 2 Indien de apparatuur niet het land van aankoop wordt gebruikt, neem dan 15 Surround luidsprekers Monteer de luidsprekers met de tweeters ca. 60 cm boven de hoogte van uw hoofd. 5.1 Kanalen Welke kabels 16 2. 3. a. b. c. d. e. 17 f. 4. 2. 18 • • • 19 20 4 2 Условия гарантии 1 2 3 а. б. е. в. г. д. 21 22 "esky 2 2 3 a. b. c. d. e. • • • • f. Volba pozice 4 23 24 2 2 3 a b c d e f 4 • • • 25 26 Finomhangolás 2 3 a b c d e f 4 2 27 28 29 30 31 32 33 34 Response Data 35 CWM DS8 Technical features Description Drive units Frequency range Sensitivity 3-way dipole/2-way monopole in-wall system ø180mm (7 in) Kevlar® cone bass/midrange 2x ø80mm (3 in) Kevlar® cone midrange 3x ø25mm (1 in) Nautilus™ tube loaded aluminium dome tweeter -6dB at 40Hz and 50kHz (monopole) -6dB at 40Hz and 18kHz (dipole) 45Hz - 22kHz (monopole) on reference axis 45Hz - 15kHz (dipole) on reference axis 88dB spl (2.83V, 1m) 8Ω (minimum 3.3Ω) 3.5kHz (monopole) 250Hz, 4kHz (dipole) Maximum amplifier power Cut-out size Weight 36 Woven Kevlar® bass/midrange driver Nautilus™ tube-loaded tweeter 150W continuous into 8Ω on unclipped programme H 485mm (19.1 in) 5.7kg (12.5 lb) W 255mm (10 in) B&W Group Ltd Dale Road Worthing West Sussex BN11 2BH England T +44 (0) 1903 221 800 F +44 (0) 1903 221 801 [email protected] www.bwspeakers.com B&W Group (UK Sales) T +44 1903 221 500 E [email protected] B&W Group North America T +1 978 664 2870 E [email protected] B&W Group Asia Ltd T +852 2 869 9916 E [email protected] Copyright © B&W Group Ltd. E & OE Kevlar is a registered trademark of DuPont Nautilus is a trademark of B&W Group Ltd. Printed in England.
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