Assessments - 2, GPA: 3
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Too close and the panoramic effect will be lost, accompanied by a reduction in depth. For Home theatre Installations, the speakers should not be closer together than the width of the screen and their height should be approximately at centre screen height. Home Theatre Surround Speaker Applications The sound from surround speakers should be as diffuse as possible. This ensures that the frontal audio image is not distorted by changes of listener position or head movements. The speakers should generally be placed behind and 0.6m (2ft) or more above ear height. Ceiling mounting often gives good results in this application. The orientation is less important in this application than in other cases. WARNING: The CWM speakers produce a static magnetic field that extends outside the cabinet boundary. As such They should not be placed within 0.5m (20in) of equipment that may be affected by such a field, e.g. Cathode Ray Tubes in TVs and Personal Computers. DAMPING THE WALL CAVITY In addition, loosely fill the whole section of the cavity with wadding. Fibreglass and mineral wool matting supplied for heat insulation are suitable, but not closed cell foam or expanded polystyrene. Check that there is no debris that may fall into the speaker (especially in ceiling mount situations). IMPORTANT: YOU SHOULD CHECK THAT THE MATERIALS YOU USE MEET THE LOCAL FIRE AND BUILDING REGULATIONS. FITTING THE WALL FRAME Existing Construction Position the template on the surface as required Mark around the outside of the template and cut the aperture neatly. All Methods (figure 2) Position the frame in the ceiling and screw in the 4 screws visible from the front of the frame. These screws swing out clamping dogs that locate behind the drywall. Ensure that they have located properly and tighten the screws. A certain amount of flexing of the frame is allowed to take up unevenness in the mounting surface, but do not over tighten the screws as excessive distortion of the frame may occur. 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 not re-finish the drive units or baffle area behind the grille. Avoid touching the drive units, as damage may result. CONNECTIONS All connections should be made with the equipment switched off. The terminals accept bare wires. Connect the red (+ve) terminal to the positive terminal of the amplifier and the black (-ve) to the negative. Failure to observe correct polarity will result in ill-defined panning of sounds and strange phase effects. When choosing cable, keep the total electrical impedance (out and back) below the maximum recommended in the specification. Ask your dealer for advice, as the optimum cable will depend on the length required. Cut off excess length and tie down loose cable to prevent rattles. FRANCAIS INTRODUCTION Nous vous remercions d’avoir choisi les enceintes B&W de la serie Contractor Wall Mount (CWM200). Depuis a fondation en 1966, la philosophie e B&W a toujours ete la quete de la reproduction sonore la plus parfaite. Inspiree par son fondateur, le regrette John Bowers , cette recherche a entraine de tres lourds investissements en equipement et en innovations mais elle nous a surtout conduit a acquerir une connaissance tres approfondie de la musique afin que la technologie soit toujours utilisee de facon optimale. Notre politique est que les technologies avancees developpees sur l’un de nos modeles puissent etre introduites dans l’ensemble de nos productions. Au dela des qualite propres aux enceintes ellesmemes, vous ne devez pas oublier qu’elles doivent donner de bons resultats dans une salle d’ecoute. Pour tirer le meilleur parti de vos enceintes, vous ne devez jamais oublier que leur installation joue un grand role dans le resultat d’ecoute general. Le soin que vous consacrerez a leur mise en oeuvre sera recompense par les tres nombreuses heures d’ecoute et de plaisir musical. Nous vous invitons a lire integralement ce manuel. Il vous aidera a optimiser les performance du systeme. B&W, qui est distribue dan plus de 60 pays, maintient un reseau de distributeurs officiels capables de vous aider si vous rencontriez un probleme que votre revendeur ne saurait pas resoudre. N’hesitez pas a le contacter en cas de besoin. DEBALLAGE (figure 1) • Ouvrez et rabattez la partie superieure de l’emballage, retournez l’ensemble. • Soulevez le carton pour le vider. • Enlevez les elements qui protegent l’appareil. Verifiez le contenu : • 2 x baffle comportant le haut-parleur et le filtre • 2 x grille de protection du haut-parleur • 1 x gabarit d’alignement • 2 x masque a peinture Nous vous suggerons de conserver l’emballage pour un usage ulterieur. Veuillez retirer les grilles et les baffles du cadre mural, conservez-les a l’abri dans leur sac en plastique voire meme dans leur carton, loin de la zone de travail pour qu’ils ne courent aucun risque d’endommagement. MISE EN PLACE VERSIO...