6
EURORACK UB1622FX
-PRO
/UB1832FX
-PRO
/UB2222FX
-PRO
/UB2442FX
-PRO
signal stays constant even when the channel fader is altered. If
this were not the case, the effects signal of the channel would
remain audible even when the channel fader is turned all the way
down. For monitoring, the aux sends are generally pre-fader, i.e.
they operate independently of the position of the channel fader.
PRE
When the
PRE
switch is pressed down, the associated aux
send is taken pre-fader.
FX
The aux send marked
FX
offers a direct route to the built-in
effects processor and is therefore post-fader and post-mute.
Please refer to chapter 4 DIGITAL EFFECTS PROCESSOR for
detailed information.
+
If you are using the built-in effects processor, make
sure that STEREO AUX RETURN 3 has nothing plugged
into it (UB2442FX-PRO and UB2222FX-PRO), otherwise
the internal effects return will be muted. This is
not relevant if you use the FX OUT jack to drive an
external effects device.
+
UB1622FX-PRO and UB1832FX-PRO: On these con-
soles, the above note refers to the STEREO AUX
RETURN 2 jacks as these models do not have a
dedicated effect output.
2.1.4 Routing switch, PAN, SOLO and channel fader
Fig. 2.4: The panorama and routing controls
and the channel fader
PAN
The
PAN
control determines the position of the channel signal
within the stereo image. When working with subgroups, you
can use the PAN control to assign the signal to just one output,
which gives you additional flexibility in recording situations. For
example, when routing to subgroups 3 and 4, panning hard left
will route the signal to group output 3 only, and panning hard
right will route to group output 4 only.
MUTE
The
MUTE
switch breaks the signal path pre-channel fader,
hence muting that channel in the main mix. The aux sends which
are set to post-fader are likewise muted for that channel, while
the pre-fader monitor paths remain active irrespective of whether
the channel is muted or not.
MUTE LED
The
MUTE
LED indicates a muted channel.
CLIP-LED
The
CLIP-
LED lights up when the input signal is driven too
high. If this happens, back off the TRIM control and, if necessary,
check the setting of the channel EQ.
meter, you have to press the SOLO switch and set the MODE
switch in the main section to PFL (LEVEL SET).
Using the TRIM control, drive the signal to the 0-dB mark. This
way you have a vast amount of drive headroom for use with
very dynamic signals. The CLIP display should light up only rarely,
preferably never. While fine-tuning, the equalizer should be set
to neutral.
LOW CUT
Additionally, the mono channels of the mixing consoles have a
high-slope
LOW CUT
filter for eliminating unwanted, low-
frequency signal components (75 Hz, 18 dB/octave).
2.1.2 Equalizer
All mono input channels have a 3-band equalizer with semi-
parametric mid bands. All bands provide boost or cut of up to
15 dB. In the central position, the equalizer is off (flat).
Fig. 2.2: Equalizer of the input channels
The upper (HIGH) and the lower (LOW) bands are shelving
filters that increase or decrease all frequencies above or below
their cut-off frequency. The cut-off frequencies of the upper
and lower bands are 12 kHz and 80 Hz respectively. For the mid
range, the console features a semi-parametric equalizer with a
filter quality (Q) of 1 octave, tunable from 100 Hz to 8 kHz. Use
the MID control to set the amount of boost or cut, and the FREQ
control to determine the central frequency.
2.1.3 Monitor and effects busses (Aux sends)
Fig. 2.3: Aux Send control MON and FX in the channel strips
Monitor and effects busses (AUX sends) source their signals
via a control from one or more channels and sum these signals
to a so-called bus. This bus signal is sent to an aux send
connector (for monitoring applications: MON OUT) and then
routed, for example, to an active monitor speaker or external
effects device. In the latter case, the effects return can then be
brought back into the console via the aux return connectors.
All monitor and effects busses are mono, are tapped into post
EQ and offer amplification of up to +15 dB.
Pre-fader/post-fader
When using effects on a channel signal, it is usual to have the
aux send post fader so that the balance between effect and dry
2. CONTROL ELEMENTS AND CONNECTORS
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