Behringer EURODESK SX2442FX - Manual (Page 5)

EURODESK SX3242FX/SX2442FX
Control elements and connections 5
The manual 1.2
This manual is designed to give you an overview of all control ele-
ments and at the same time inform you in detail about how to use
them. To provide you with a clear structure, we have grouped the
control elements according to their function. They can easily be
found on the enclosed numbered illustrations. If you need more
detailed information on specific topics, please visit our web site
at www.behringer.com. The product-related information pages
and the ULTRANET-based glossary explain the relevant audio
engineering terminology in full detail.
Control elements and connections 2.
This chapter describes the various control elements of your mixing
console. All controls and connections are explained in full detail.
Mono input channels 2.1
Microphone and line inputs 2.1.1
Connectors and controls of the mic/line inputs Fig. 2.1:
{1} Each mono input channel is equipped with a balanced mi-
crophone input on an XLR connector, which provides +48
V phantom power for condenser microphones at the touch
of a button (see rear panel).
Be sure to switch off your audio system before you
+
activate the phantom power supply to prevent audible
switch-on thumps from reaching your monitor speak-
ers. Please also note the information given in chapter
2.11 “Rear panel”.
{2} Each mono input also has a balanced line input on 1/4" TRS
connectors. Of course, these inputs can also be used with
unbalanced plugs (1/4" TS connector).
{3} The INSERT I/O connector is used to process a signal with
dynamic processors or equalizers. This insert point ispre-
fader, pre-EQ and pre-aux send.
Unlike reverb and other effects, which are usually added to
the dry signal, dynamic processors process the entire signal.
So, aux send buses are not the best solution here. Instead,
dynamic processors and equalizers are inserted into the
signal path. Once processed, the signal then re-enters the
mixing console at the same point where it left. Signal inter-
ruption only occurs if a plug is inserted into the corresponding
jack (1/4" stereo plug: tip = signal output, ring = input). All
mono input channels are equipped with insert points. They
can also be used as pre-EQ direct outputs, without signal
flow interruption. For this you need a cable with a 1/4" TS
connector on the recorder/effects processor end, and a
bridged stereo 1/4" TRS connector on the console end (tip
and ring interconnected).
{4} The TRIM control adjusts the input gain. Be sure to set this
control fully counter-clockwise before you connect or discon-
nect a signal source to or from one of the inputs.
TRIM has a dual scale: the first scale has a gain from +10
to +60dB for the MIC input.
The second scale has a gain from +10 to -40dBu for the line
input. For devices with a nomal line output level of-10 dBV
or +4 dBu the setting is as follows: with TRIM fully counter-
clockwise connect the external device and adjust the output
level recommended by the manufacturer. If available, the
output level display of the external device should read 0 dB
with signal peaks. For +4 dBu increase TRIM, for -10 dBV
increase it further. The fine-tuning can be done with a music
signal and the LEVEL SET LED, which will illuminate when
the optimum operating level has been set.
{5} Mono channels are equipped with a high-slope LOW CUT
filter eliminating unwanted low-frequency signals, such as
floor rumble (18 dB/oct., -3 dB at 80 Hz).
Equalizer 2.1.2
All mono input channels are equipped with a 3-band equalizer.
The maximum boost/cut of the individual bands is 15 dB, in mid
position the EQ is set to neutral.
Equalizer section of input channels Fig. 2.2:
{6} The HIGH control in the EQ section controls the high fre-
quency range of the respective channel. It is a shelving-type
filter which can boost or cut all frequencies above a fixed
frequency (12 kHz).
{7} The MID control allows you to raise or lower the mid-range
level. It is a semi-parametric peak filter, which boosts or cuts
the frequency range around a variable mid-range frequency.
Use the FREQ control to select the mid-range frequency
from 100 Hz to 8 kHz. Then use the MID control to boost or
cut the selected frequency range.
{8} The LOW control boosts or cuts the low-frequency range.
Like the HIGH filter it is a shelving-type filter, which raises or
lowers the level of all frequencies below a specific frequency
(80 Hz).