UNIelectronic UM 4000 Bedienungsanleitung Seite 15

1. In- / Outputs
1.1 MIC/LINE Inputs
All four Mic/Line Inputs have an XLR connector at the rear panel to feed in an
symmetric audio signal.
Selection between mic and line is done with the "PAD" switch (12.2). If it is pressed
the audio signal is being lowered by 30db.
The input sensitivity can be adjusted in the range of –60dB to +10db by the "GAIN"
control (12.3):
With the "Phantom" switch (12.1) you can activate a 48V phantom power i.e. for the
use of electret mics.
An additional 80Hz low cut can be activated by an internal jumper. You find details in
Chapter 3.2.
1.2 AUX Inputs
All three AUX inputs dispose of RCA stereo inputs at the rear. They can be switched
into mono mode by an internal jumper. You find further detail in chapter 3.
The input sensivity is 755mV.
1.3 MIC/LINE 1-2 (Inputs with VOX function)
Volume of the signals fed into these inputs can be adjusted by control (3.2).
Treble and bass can be adjusted with the controls (3.1) and (3.5) in a range of
+/- 15dB.
The connection of an audio signal is indicated by the "SIG" LED (3.4) while an
overload of the input is indicated by the red "PEAK" LED (3.3).
Furthermore these inputs dispose of an integrated VOX function. It's threshold can
be adjusted by the "VOX THR" control (3.7).
Activation of the VOX is being indicated by the yellow "VOX ACTIVE" LED (3.6). All
other inputs except MIC1, MIC2 and the Audio Bus input (10.1) will be muted if the
VOX is triggered.
1.4 MIC/LINE 3-4 and AUX 1-3
Volume of the signals fed into these inputs can be adjusted by control (3.5).
Treble and bass can be adjusted with the controls (4.1) and (4.4) in a range of
+/-15dB.
The connection of an audio signal is indicated by the "SIG" LED (4.3) while an
overload of the input is indicated by the red "PEAK" LED (4.2).
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