1. LOW Z INPUT: The signal output from a low impedance microphone or a low impedance line level signal (such as a line out signal from an instrument amplifier) may be connected here by means of a shielded cable terminated with a male XLR plug. Pin 2 = "+," pin 3 = "–," and pin 1 = shield. 2. HIGH Z INPUT: The signal output from a high impedance microphone or a line level signal (such as an instrument, rhythm machine, tape deck, etc.) may be connected here by means of a shielded cable terminated with a male 1/4" plug.Tip = "+," ring = "–," and sleeve = shield. 3. INSERT: A signal processor may be connected here by means of a shielded stereo signal cable or shielded "Y" cord. (See page 8.) Ring = send, tip = return, and sleeve = ground. 4. PEAK/SIGNAL LED: This LED will illuminate green when a signal is present at the High or Low Z inputs. When the signal nears clipping, the LED will illuminate red. (See Gain control, #5.) 5. GAIN: Use this control to set the input signal level for the channel. Adjust this control so the peak LED (#4) flashes on strong signal peaks. 6. HIGH: Use this control to adjust the high frequency level for the channel. This control allows for 15dB of cut or boost at 10kHz. 7. MID: Use this control to adjust the midrange frequency level for the channel. This control allows for 15dB of cut or boost at 2kHz. 8. LOW: Use this control to adjust the low frequency level for the channel. This control allows for 15dB of cut or boost at 100Hz. 9. AUX 1, AUX 2: Use these controls to set the channel’s output signal level at the aux 1 and aux 2 send jacks (#17). These are pre-EQ, pre-fader, and aretypically used as monitor sends. 10. AUX 3, AUX 4: Use these controls to set the channel’s output signal level at the aux 3 and aux 4 send jacks (#17). These are post-EQ, post-fader, and are typically used as effects loop sends. 11. PAN: Use these controls to set the amount of the channel’s output signal sent to the left and right master faders (#30) and the left and right balanced out-put jacks (#15). 12. MUTE: This switch, when depressed, mutes the channel’s output signal sent to the left, right and mix master faders (#30, 31). 13. PFL: This switch, when depressed, sends the channel’s post-EQ, pre-fader signal to the headphones jack (#28) and the PFL output jack (#18). 14. FADER: Use this control to set the channel‘s signal level output sent to the left, right and mix master faders (#31, 32,) and the aux 3 and aux 4 send jacks (#17).

The Input Channels Master Section

15. LEFT, RIGHT AND MIX BALANCED OUTPUTS: Use these jacks to send the mixer’s output signal(s) to the house power amplifier(s). For the XLR jacks, pin 2 = "+," pin 3 = "–," and pin 1 = shield. For the 1/4" jacks, tip = "+," ring = "–," and sleeve = shield. 16. TAPE IN/TAPE OUT JACKS: Use these jacks to connect to the record and playback jacks of a cassette tape deck. Because the tape in jacks are fed directly into the left and right master faders, use the tape deck’s output level control or an in-line attenuator to adjust the level of the playback signal. 17. AUX SEND JACKS: Use these jacks to send the aux signals to your monitor amps and/or external effects. Aux 1and 2 are sends only, while aux 3 and 4 can be used as an effects loop along with the aux 3 and 4 return jacks (#19). The mix for each aux send jack is set by the channel aux controls (#9, 10). The master aux 1 fader (#30) sets the overall signal output level for the aux 1 jack, while the aux 2, 3 and 4 send controls (#24) set the overall signal output level for the aux 2, 3 and 4 jacks. 18. PFL OUTPUT JACK: Use this jack to send the channel’s PFL signal outputs to a studio monitor power amp/speaker or to a headphone distribution box for additional monitoring capabilities. 19. AUX RETURN JACKS: Use these jacks to return the processed signal from an external effect into the master mix. These jacks are stereo 1/4" connectors – ring = right, tip = left, sleeve = shield. 20. POWER: This switch applies the power to the mixer. The mixer is on when the top of the switch is depressed, off when the bottom of the switch is depressed. The adjacent LED illuminates when the power is on. 21: OUTPUT LED METERS/PEAK INDICATORS: These LED meters monitor the output signals sent to the balanced output jacks (#15). The meter selector switch (#22) determines whether the meters monitor the left and right output signals or the aux 1 and mix output signals. When the LEDs illuminate into the upper red areas, the signals are near clipping and may need to be reduced to avoid distortion. 22: METER SELECTOR SWITCH: When the switch is in the out position, the LED meters (#21) monitor the left and right output signals. When the switch is depressed, the LED meters monitor the aux 1 and mix output signals.

The Master Input Section (Continued)

23: PHANTOM POWER: This switch, when depressed, applies 48 volts DC to pins 2 and 3 of the each channel’s low Z input jacks to accommodate microphones which require a source of phantom power for proper operation. (Mics not requiring phantom power are not affected by the presence of the DC voltage.) 24. AUX SEND LEVELS: Use these controls to set the output levels for the signals at the aux 2, 3 and 4 send jacks (#17). 25. AUX RETURNS: Use these controls to adjust the level of the signals from the aux 3 and 4 return jacks (#19). 4. PEAK/SIGNAL LED: This LED will illuminate green when a signal is present at the High or Low Z inputs. When the signal nears clipping, the LED will illuminate red. (See Gain control, #5.) 26. AUX PANS: Use these controls to set the balance of the aux 3 and 4 return signal sent to the left and right master faders (#31). 27. HEADPHONES/PFL LEVEL: Use this control to adjust the output signal level at the headphones/PFL jack (#28). 28. HEADPHONES/PFL JACK: Use this jack to connect a pair of stereo headphones to the mixer. The signal at this jack is taken from the PFL bus, therefore the channel PFL buttons must be depressed in order to hear their signals through the headphones. 29. PFL LEFT/RIGHT/MIX: These switches, when depressed, send the corresponding PFL signals to the headphones/PFL jack (#28) and to the PFL output jack (#18). 30. AUX 1 MASTER FADER: Use this control to set the overall output signal level at the aux 1 send jack (#17). A fader has been chosen to provide ease of control of aux 1 since this is typically used as an output signal for the stage monitors. 31. LEFT/RIGHT MASTER FADERS: Use these controls to set the overall output signal levels at the left and right balanced output jacks (#15), as well as the signal level sent to the mix master fader (#32). 32. MIX MASTER FADER: Use this control to set the overall output signal level at the mix balanced output jacks (#15). The left and right master faders (#31) must be set at an appropriate level so that a signal of sufficient amplitude is sent to the mix master fader.