Proel M1622USB - Manual (Page 20)

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use it on the AUX's sends to avoid feedbacks on stage monitors.
IMPORTANT: press always both MIX L / AUX1 and MIX R / AUX2 switches to assign both the equalizers channels at the
same me to MIX outputs LEFT & RIGHT or to AUX's sends 1 & 2.
70. MIX R / AUX 2 switch
This bu on assigns the RIGHT channel of the 7-band STEREO graphic equalizer to MIX RIGHT (switch released) or to
AUX2 send (bu on pressed). Use it ALWAYS together with MIX L / AUX 2 bu on.
71. STEREO GRAPHIC EQ slider
These sliders gives you up to 15 dB boost or cut at 63 Hz, 125 Hz, 400 Hz, 1 KHz, 2.5 KHz, 8 KHz and 16 KHz.
72. STAND-BY switch
Engage the STAND-BY switch and instantly the en re MAIN MIX is switched off . You can use this switch as a MASTER
MUTE while you are wai ng for the gig to start. Since the 2TRK IN input it's s ll assigned to the MAIN MIX when the
STAND-BY bu on is pressed, you can also play some music during the intermission. When it's me to start the gig, just
release the bu on and all musicians will be ready to play.
73. L & R LEVEL METERS
The level meters are made of two columns of of twelve LEDs with three colours to indicate diff erent ranges of signal
level:
• green = shows the normal opera ve level of the signal (from -30 to +4 dBu)
• yellow = shows the nominal opera ve level of the signal (from +7 to +10 dBu)
• red = shows a high signal level (near +20 dBu CLIP level).
If the SOLO switch is dis-engaged, the meters display what is selected by (75) (76) and (77) switches, choosing between
MAIN MIX (post fader), GROUP 1-2 (post fader) or 2TRK IN.
If one or more SOLO switches are engaged, the meters display the solo informa on. If the SOLO MODE is set as PFL
(pre fader level) the meters show only a mono signal on both column, if it is set as AFL (a er fader level) they show the
stereo signal a er the channel FADER and PAN controls.
NOTE: in order to obtain a proper visualiza on, we recommend to press only one switch at a me.
74. SOLO MODE switch
Allows to select if the listening and the visualiza on of the channels selected with the SOLO bu ons are PRE FADER
(PFL) or POST FADER (AFL).
- PFL: PRE-FADER LEVEL, the input signal, already controlled by the channel EQ, is shown on the LED METERS and sent
to the C.ROOM/PHONES outputs. The PFL mode has to be used for se ng the right level of the input signal (usually
around 0 dB) and to avoid input satura on and distor on.
- AFL: AFTER-FADER LEVEL, the input signal, already controlled by the channel EQ and by the channel fader, is shown on
the LED METERS and sent to the C.ROOM/PHONES outputs.
75. 2TRK to C.ROOM switch
Push this switch to send the 2TRK input signal and USB input signal to C.ROOM and PHONES outputs.
76. MIX to C.ROOM switch
Push this switch to send the MIX bus signal to C.ROOM and PHONES outputs.
77. 1-2 to C.ROOM switch
Push this switch to send the GROUP 1-2 bus signal to C.ROOM and PHONES outputs.
NOTE: for a correct opera on we suggest to choose these three switches (75) or (76) or (77) one a me.
IMPORTANT: these switches also select which signal is displayed on LED METERS when none channel is soloed.
78. C.ROOM/PHONES LEVEL control
This controls the CONTROL ROOM and PHONES output’s level.
NOTE: The signal at these outputs is the same.
79. C.ROOM jack outputs
These JACK connectors provide an unbalanced line-level signal that can be used to monitor the MAIN MIX / GRP 1-2 /
USB 2TRK IN program or what is soloed.
80. PHONES stereo jack output
STEREO JACK connector for the headphones output: only stereo headphones with a minimum impedance of 32 Ohms
should be connected to this output.
81. LAMP 12V / 0.5A socket
This BNC connector provides +12V power supply for gooseneck lamps. Use only lamps with MAX 5W power consump on.
PROEL suggested types are SDC670 or SDC670LED.