[. . . ] Treble and Bass EQ: Adjusts the high and low frequency levels of the input channels for a good sound. [. . . ] Input Toggle Switch: Selects which source will be active based on what you have connected to the rear panel input section (phono/line). channel Cue / Cue Pan: Used to preview channel audio to your headphones. Power Connector: Plug in power adapter here and check the voltage level to match your country's standard. Fader Start: This function works in conjunction with a Compatible fader start CD player. When used with a compatible CD player, you can use the crossfader to start and stop the CD player with the slide of the fader. When in ON position, the fader start allows the fader to return automatically to preset digital Cue Points on your compatible CD player. Line Inputs: Unbalanced RCA jacks for connecting stereo audio from line level sources such as CD players, Hi-fi VCR's, cassette and reel-to-reel tape decks, DAT machines, laser discs, tuners, even synthesizers or other mixing consoles. When these connectors are used, your signal is fed directly to the high quality RIAA phono pre-amplifiers. [. . . ] When turning OFF, always reverse this operation by turning off amplifiers, then your mixer and then input devices. [. . . ]