[. . . ] Visual references are minimal, and Murphy's Law means, that the textbook theory will never apply to your specific situation. The drummer, for example, might want to hear a lot more bass than the keyboard player. [. . . ] setting PAN fully CW will send the signal only to the right mixing bus. BAL (Stereo Input Channels 7/8 and 9/10) Determines the level of the L/R input signal within the final stereo mix. SIGNAL LED / PEAK LED Signal (green) shows the presence of any input signal (>20dBu). FADER (Channel Fader) The slide potentiometer works in conjuction with the TRIM Control to adjust the gain for that input channel (mic & line inputs). They also control the output of the internal power amplifiers, when the power rouiting selector switches are set to L&R position. AUX1 SEND (Master Control) Controls the overall output level of all AUX1 signals coming from the input channels. (output via AUX1 Send mono jack socket) AUX2 SEND (Master Control) Controls the overall output level of all AUX2 signals coming from the input channels. (output via AUX2 Send mono jack socket) MONITOR FADER (Master) Controls the overall output level of all MON signals coming from the input channels. The monitor fader will also control the internal power amplifiers, when the Power Routing switches are in MON position. TAPE IN (RCA sockets L/R) Serve as inputs for Tape / CD or other signal sources with line level. (Level setting via TAPE IN control) TAPE OUT (RCA sockets L/R) Use these outputs for recording of the complete L/R mixer signal. EFF TO MASTER (L/R) Adds Signals from the digital effect unit to Master L/R mix. [. . . ] DIGITAL MULTIEFFECT UNIT The built-in Digital multieffect unit features 256 different Stereo Effects. Channel signals are received via the AUX2-EFF controls from the individual channels. [. . . ]