User manual B&W NAUTILUS SCM1

[. . . ] There is enough clearance to insert a spade connector from the amplifier into the same terminal as the crimped pin. ensure each positive terminal on the speaker (coloured red) is connected to the positive output terminal of the amplifier and negative (coloured black) to negative. Incorrect connection can result in poor imaging and loss of bass. When bi-wiring, do not use the linking cables. [. . . ] Place the speakers against the wall within this range of angles, initially on a temporary support that raises the tweeters approximately to ear height. This will define whether you position the speakers on the side or rear wall. Point the speakers towards the centre of the listening area. (figure 4) The wall bracket will allow the speaker to be rotated horizontally up to 45°. If you listen in high-backed chairs, or if the speakers are otherwise obscured, it may be advantageous to raise them higher. Satisfactory results can be obtained with them up to approximately 60cm (2 feet) above ear height. With all speakers positioned for initial listening tests, listen to a wide variety of programme material ­ 5. 1 channel audio, action and small scale movies ­ and sit in all likely listening positions. pay particular attention to the surround information and the stability of the images. If the imaging is unsatisfactory, for example if it becomes too one sided at the extremes of the listening area, or if you cannot place the speakers within the preferred range, you may be better off aiming for a more diffuse sound field. This can give more acceptable results in difficult situations. Try changing the angle of the speakers so they point away from the listening area. It may also be advantageous to raise the speakers well above ear height. (figure 5) Once you have found the optimum position, fix the speaker permanently in position (see below). As a front centre speaker: If using a projection television with an acoustically transparent screen, place the speaker behind the centre of the screen. Otherwise position it directly above or below the screen, whichever is closest to ear level. As a front left and right speaker: Space the speaker between 0. If the centre speaker is behind an acoustically transparent screen, position the left and right front speaker as nearly as possible at the same height. If the centre speaker is above or below the screen, the height of the left and right speaker should be between the height of the centre speaker and the centre of the screen. adjust the angle of the speakers to achieve the most realistic and stable image. For greatest realism in home theatre installations it is important to balance the speakers and adjust the acoustic image to match the size of the screen. With smaller screens it may be more realistic to have the left and right speakers closer together than you might for audio alone. [. . . ] The tweeter is very delicate and its grille should be left in position for protection. For this reason the grille retaining ring is designed to provide the optimum acoustic environment for the unit and the response is less smooth with the grille removed. This and other properties influenced by the detailed construction of the cable become important. Ask your dealer for advice on the best cable for your needs. [. . . ]