[. . . ] USING THE MIC EFFECTS INSERT In order to add effects to the microphone signal, an insert cable is needed. Connect the insert cable's TRS end to the Mic FX Insert jack on the rear of the RM74. Connect the Tip connection to your effects processor's Input jack, and the Ring connection to the Output of the effects processor. [. . . ] For warranty information, visit our website; www. rolls. com Please register your new RM74 there, or complete the Warranty Registration Card and return it to the factory. Ensure the RM74 is securely mounted in a 19" rack. Connect the power supply to an AC outlet (preferrably a power strip with master switch). If the unit is to be used in a permanent install, connect all sources and microphones to the desired channels on the rear panel. For use in mobile DJ/Karaoke rigs, the microphone should be connected to the front panel Microphone Input so it may be easily removed when the mobile rig is packed. Shown below is a possible connection example for the RM74. CONNECTION DESCRIPTION FRONT PANEL INPUT: Balanced XLR jack for connection to a dynamic or condenser microphone. LEVEL: Adjusts the amount of signal from the Microphone Input channel to the Main Outputs. Turning this control clockwise from the center (detented) position decreases the low frequencies. Turning the control counter-clockwise from center decreases the high frequencies. SOURCE LEVEL CONTROLS 1 - 4: Adjust the amount of signal from the indicated Source channel to the Main Outputs. BASS: Varies the amount of the low frequency portion (150 Hz) of the Source signals. TREBLE: Varies the amount of the high frequency portion (10 kHz) of the Source signals. CUE SELECT: Selects a Source signal, or the Main Output signal to be sent to the Headphone Output. HEADPHONE LEVEL: Adjusts the amount of signal to the Headphone Output. HEADPHONE OUTPUT: 1/4" Tip-Ring-Sleeve jack for connection to any standard pair of audio headphones. [. . . ] You may now "cue" or prepare the Source selection for playing. Increase the Source Level of the "cued" channel, and begin playing the selection. You may now select a different channel by moving the Cue Select switch to another Source Channel, and "cue" another song. [. . . ]