User manual B&W CDS6

[. . . ] In a plane at right angles to these two lobes, the sound is substantially cancelled out. The speakers are used with the null plane directed towards the listeners, who therefore hear very little direct sound. Most of the sound they hear is reflected off the surfaces of the room and is diffuse in nature. [. . . ] Mark along the inside edges of the slots and cut out the aperture neatly. Ten spring clips are supplied for each wall frame. Screw, but do not tighten, sufficient of them via the holes in the rear surface of the wall frame to ensure that it sits properly on the wall surface. Use extra clips around areas of particular unevenness. all Methods Align the frame squarely and tighten down the screws. A certain amount of flexing of the wall frame is allowed to take up unevenness in the wall surface, but do not over tighten the screws as excessive distortion of the frame may impede the fitting of the baffle. The wall frame is pre-finished in white primer paint, ready if necessary to be re-finished to match your own decor. Check the contents: 2 x Baffle with drive units, crossover and foam 2 x Wall frame 2 x Loudspeaker grille 1 x Alignment template 1 x Accessory pack containing: 20 x Spring clips + self tapping screws + washers 8 x Machine screws (fixing baffles to wall frames) We suggest you retain the packaging for future use. Remove the grilles and baffles from the wall frames and, to avoid damage, keep them in their plastic bags (and preferably in the carton) away from the work area until you are ready to fit them. All connections should be made with the equipment switched off. To ensure the correct dipolar sound field, the speakers are handed left and right. When each speaker is positioned at the correct side of the room, the positive terminal (coloured red) is nearer the screen. 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. [. . . ] 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). 5kHz 85Hz - 8kHz ±3dB power averaged over front hemisphere Horizontal: Figure-of-eight dipolar 250Hz - 12kHz 89dB spl (2. [. . . ]