[. . . ] To mount the front/surround speakers vertically, use the keyhole slot shown to hang each speaker on a screw that's securely screwed into the wall. To mount the center speaker horizontally, use the two keyhole slots shown to hang the speaker on two screws that are securely screwed into the wall. [. . . ] Keyhole slots for wall mounting Keyhole slot for wall mounting Thick rubber stoppers Thick rubber stoppers 183 mm (7-3/16") Caution Wall · A mounting screw's ability to support a speaker depends on how well it's anchored to the wall. If there are no studs, or the 5 to 10 mm walls are solid, use suitable wall (3/16" to 7/16") anchors. Use screws with a head diameter of 9 mm (5/16") or less and a shank diameter of 4 mm (1/8") or less. With hollow walls, use a cable/pipe detector to check for any power cables or water pipes before making any holes. Leave a gap of between 5 mm (3/16") and 10 mm (7/16") between the wall and the base of the screw head, as shown. ) and playback is very loud, the subwoofer's feet may damage the flooring. We recommend using the supplied rubber stoppers to achieve the best possible sound from your speakers. The volume and quality of the bass output from your subwoofer will depend on its position, the shape of your listening room, and your listening position. In general, a good bass sound can be obtained by installing the subwoofer in a front corner, or at one-third the way along the front wall, as shown. Front right speaker Center speaker Front left speaker Note Specifications and appearance are subject to change without prior notice. For non-magnetic shielded speakers: Try moving the speakers away from your TV or monitor. If discoloration should occur, turn off your TV or monitor, wait 15 to 30 minutes, and then turn it back on again. This normally activates the degaussing function, which neutralizes the magnetic field, thereby removing any discoloration effects. Read the following before connecting your speakers: · Turn off your receiver before making any connections. [. . . ] This normally activates the degaussing function, which neutralizes the magnetic field, thereby removing any discoloration effects. Read the following before connecting your speakers: · Turn off your receiver before making any connections. [. . . ]