[. . . ] STANDBY/ON indicator Red: Subwoofer in standby mode Blue: Subwoofer on With the Auto Standby function, the SKW-538 automatically turns on when an input signal is detected in Standby mode. When there's no input signal for a while, the SKW-538 automatically enters Standby mode. [. . . ] Set it so that bass sounds are evenly balanced with the treble sounds from the other speakers. Because our ears are less sensitive to very low bass sounds, there's a temptation to set the level of the subwoofer too high. As a rule of thumb, set the subwoofer level to what you think is the optimal level, and then back it off slightly. We recommend using the supplied rubber stoppers to achieve the best possible sound from your speakers. The rubber stoppers prevent the speakers from moving, providing a more stable platform. Use thick stoppers for the center speaker, and thin stoppers for the other speakers. ) and playback is very loud, the subwoofer's feet may damage the flooring. The Home Cinema means that you can enjoy surround sound with a real sense of movement in your own home -- just like being in a movie theater or concert hall. Front left and right speakers (SKF-548) They should be positioned facing the listener at about ear level, and equally spaced from the TV. Angle them inward slightly so as to create a triangle, with the listener at the apex. Center speaker (SKC-548/SKC-548C) Position it close to your TV (preferably on top) facing forward at about ear level, or at the same height as the front left and right speakers. Surround left and right speakers (SKR-548) Position them at the sides of the listener, or slightly behind, about 60 to 100 cm (2 to 3 feet) above ear level. [. . . ] 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. [. . . ]