User manual B&W DM 605 S2

[. . . ] Check that there are no cables under the carpet that may be damaged by the spikes. Do not walk the unit on the spikes as this may cause them to become detached from the cabinet and cause damage. Take care not to impale your feet with the spikes. To reduce the risk of electric shock, do not remove the back panel. [. . . ] Full range input (figure 4) There are 2 pairs of terminals at the back of the speaker which permit bi-wiring if desired. On delivery, the separate pairs are connected together with high-quality links for use with a single 2-core cable. For single cable connection, leave the links in place and use either pair of terminals on the speaker. (figure 4a) Ensure the positive terminal on the speaker (marked + and coloured red) is connected to the positive output terminal of the amplifier and negative (marked ­ and coloured black) to negative. Incorrect connection can result in poor imaging and loss of bass. To bi-wire, remove the links by loosening the terminal caps and use a separate 2-core cable from the amplifier to each pair of terminals (figure 4b). When bi-wiring, incorrect connection can also impair the frequency response. Ask your dealer for advice when choosing cable. Keep the total impedance below the maximum recommended in the specification and use a low-inductance cable to avoid attenuation of the highest frequencies. Low-frequency effects (LFE) input (figure 5) The LFE or subwoofer output of your decoder is connected to the LFE input of one of the speakers using line level coaxial cable terminated by an RCA Phono plug. Connect the second speaker LFE input socket to the LFE link out socket of the first speaker. Connection to the mains power supply Ensure that the voltage indicated on the amplifier panel matches that of the power supply. Should you need to change the setting, perhaps because you have moved to an area having a different supply voltage, slide the voltage selector switch to the other position WHILE THE SPEAKER IS DISCONNECTED FROM THE MAINS POWER SUPPLY. A 3-core mains power lead appropriate to the country of sale is supplied that fits the IEC mains input socket (figure 6A) in the amplifier panel. The same value mains fuse is used whatever the supply voltage and it is fitted in a tray at the bottom of the mains input socket (figure 6B). Before fine tuning, double check that all the connections in the installation are correct and secure. Moving the speakers further from the walls will reduce the general level of bass. Space behind the speakers also helps to create an impression of depth. Conversely, moving the speakers closer to the walls will increase the level of bass. If the bass is uneven with frequency it is usually due to the excitation of resonance modes in the room. Even small changes in the position of the speakers or the listeners can have a profound effect on how these resonances affect the sound. Try mounting the speakers along a different wall. [. . . ] Adjust the levels of the three front speakers to get a smooth transition of sounds as they pan across the screen. Adjust the level of the surround speakers so that, except for special effects, your attention is not unduly attracted to them. Sit in all likely listening positions when deciding on the optimum levels. Consult your decoder manual for further information on how to set the levels. [. . . ]