Behringer Eurodesk SL2442FX-Pro User Manual download pdf (Page 5)

EURODESK SL3242FX-PRO/SL2442FX-PRO

Control elements and connections 5

Control elements and connections2.

This chapter describes the various control elements of your mixing

console. All controls and connections are explained in full detail.

Mono input channels2.1

Microphone and line inputs2.1.1

Connectors and controls of the mic/line inputsFig. 2.1:

{1} Each mono input channel is

equipped with a balanced microphone 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

ow 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 rst 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 ne-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

lter eliminating unwanted low-frequency signals, such as

oor rumble (18 dB/oct., -3 dB at 80 Hz).

Equalizer2.1.2

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 channelsFig. 2.2:

{6} The HI control in the EQ section controls the high frequency

range of the respective channel. It is a shelving-type lter

which can boost or cut all frequencies above a xed fre-

quency (12 kHz).

{7} The MID control allows you to raise or lower the mid-range

level. It is a semi-parametric peak lter, 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 HI lter it is a shelving-type lter, which raises or

lowers the level of all frequencies below a specic frequency

(80 Hz).

Aux/FX send buses2.1.3

Aux sends enable you to take the signals from one or multiple

channels and collect them on one bus. This signal is then present

at one of the aux send jacks, from where it can be routed to an

active monitor speaker or external effects device, for example.

The FX returns are subsequently used as a return bus for the

processed signal.

AUX/FX send controls in the channel stripsFig. 2.3:

{9} On each channel, the AUX 1 and AUX 2 controls allow

you to determine the level of the aux signals sent from the

channel. The main aux send signal comprising the aux send

signals from all channels can then be adjusted with the cor-

responding master AUX SEND controls (51), and is present

at the AUX SEND outputs (52). Both aux sends are mono,

post-EQ, with a gain of up to +15 dB.

(10) Press the PRE switch to set all aux sends to pre-fader. In

this case, the volume of the aux signals is no longer depen-

dent on the fader position, so you can create completely

independent monitor mixes.

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Behringer Eurodesk SL2442FX-Pro User Manual Page 5

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