Behringer EURODESK SX4882 Quick Start Manual page 9

16
EURODESK SX4882
EURODESK SX4882 Controls
Controls
EURODESK Overview
(EN)
Prefix
S
L
P
F
Meaning of the used prefixes
Metering
The 1 to 24 channels have signal (-20 dB,
and overload LEDs (PEAK,
The built-in meterbridge provides 12 segment bargraph
meters for all channels and subgroups as well as for the
main mix. By the DISPLAY MODE switch (
of the master section) you decide between CHANNEL
and TAPE MODE. Your choice will be indicated by a LED.
In CHANNEL MODE, which is the best for live mixing
purposes, the LED meters read the channel's direct
OUTPUT, which is post EQ, post mute and post fader.
In TAPE MODE the channel meters will mirror the
multitrack's meters, because they read the tape
return inputs – after the OPERATING LEVEL switch,
but unaffected by anything else happening in the
channel. 0 dB is referenced to the selected tape
operating level (+4 dBu or -10 dBV).
Channel strip
On the EURODESK SX4882 the 24 INPUT + OUTPUT
(I/O or "normal") channels cover most of the console.
Most of each strip is occupied by the main or A-CHANNEL,
accepting MIC, LINE or TAPE inputs, depending on the
positions of and
(S1)
a secondary B-CHANNEL. Anything routed to a B-channel
is directed to a separate MIX-B bus.
Input switching
First, look at the MIC/LINE switch
it selects MIC, in the DOWN position LINE. The next
switch chooses whether A-channel looks at INPUT
(S3)
or TAPE. If INPUT is routed to A-channel, TAPE is offered to
B-channel. If TAPE is routed to A-channel, INPUT is offered
to B-channel. Depressing the PAD switch (
incoming mic signal by -20 dB, if necessary.
applies to the B-channel only and replaces the
(S23)
normal TAPE or INPUT source with a tap from the main
channel, taken post mute and pre fader. Now MIX-B
acts as an extra stereo aux send or extra stereo mix.
You should remove MIX-B from the main mix (via
master section) in this configuration.
Input gain setting
The channel input level is set by the TRIMPOT (
Meaning
Use SOLO/PFL ( ) to bring the channel's input onto
(S26)
Switch
the L/R bargraph meters under the master section of the
LED
EURODESK SX4882. This also sends the SOLO/PFLed signal
Potentiometer
to the left and right speakers. Channel PFL/SOLO (
Fader
has an associated LED ( ).
(L26)
Main equalizer
The main equalizer can be switched (
(S10)
easy A/B comparisons between EQed and straight signals,
)
(L25)
or when you know that you don't want to use desk EQ at
).
(L24)
all. It is best considered in three sections. First, there are
two Baxendall shelving frequency controls for treble
and bass, at 12 kHz and 80 Hz respectively (
, top left
(S100)
Secondly, there are two semi-parametricswept mids,
Q fixed at 1, which cover the bands 300 Hz to 20 kHz
and 50 Hz to 3 kHz. An unusually broad frequency
range is catered for, and there is an enormous 3-plus
octave overlap between the two mid bands (
and ).Thirdly, there is a steep high pass
(P7) (P8)
(low cut) filter ( ), slope @ 12 dB/octave,
(S11)
-3 dB @ 75 Hz, for reducing floor rumble, plosives,
woolly bottom end, etc.
Aux sends
All six aux sends are mono and post EQ. They are
switchable PRE/POST fader in two banks (
For aux sends 1 and 2, two dedicated pots (
are used. These can be taken from a point before or after
the channel fader, i.e. PRE or POST (
(S13)
and 4, and 5 and 6 are serviced by two potentiometers
( and ). The SHIFT button (
(P14) (P15) (S15)
. Each channel strip also sports whether buses 3 and 4 or 5 and 6 are addressed.
(S3)
Also, these four sends can be derived from the main
mix or MIX-B, depending on SOURCE (
(S17)
and, as before, can be pre or post (
(S16)
Routing and muting
. In the UP position
(S1)
ROUTING means selecting which BUS you want
a channel to address. There are actually six stereo
buses in the EURODESK SX4882 (plus a stereo SOLO
bus). The main mix bus is selected by
(S32)
) lowers an subgroups are selected by switches
(S1a) (S28)
1 and 2), (3 and 4), (5 and 6) and
(S29) (S30)
Odd and even numbered groups are selected via the main
A-channel PAN , as are the left and right mix buses.
(P24)
The level to the subgroup and main mix buses is
ultimately determined by the channel faders.
,
(S48)
The MUTE button ( ), like that for SOLO has an LED
(S27)
indicator ( ) and removes the A-channel signal from
(L27)
all buses, save any auxes set to pre fader.
17
Quick Start Guide
B-channel
). The B-channel comprises a secondary channel with
(P2)
its own high and low EQ, pan and level (
and ). The EQ is a replica of the A-channel
(P20) (P21)
shelving EQ. The B-channel ALWAYS feeds into the MIX-B
) stereo bus, but its source can be switched between TAPE,
(S26)
LINE, MIC and A-CHANNEL, depending on how
and are set. Unusually for an 8-bus console,
(S2) (S3)
B-channels also have their own MUTE buttons (
) out of circuit for
Aux sends 3/4/5/6 may be diverted from the A to the
B-channel via .
(S17)
Subgroups
The principal routes to the multitrack are via the
and ). SUBGROUP OUTPUTS. There are four stereo (or eight
(P4) (P9)
mono) subgroups, numbered 1 to 8. All main channels
can access all of them, as can the STEREO AUX RETURNS
1 and 2.
As well as always functioning as subgroups for track
, ,
(P5) (P6) laying via the SUBGROUP OUTPUTS, groups can be routed
directly into the main mix bus for submixing. Main mix
routing is handled by switches and
(S37)
an odd numbered group to the left bus, while
an even numbered subgroup to the right bus. That's fine
for stereo submixes. If you want a pair of mono submixes
instead, also press the MONO buttons (
Now these subgroups feed into the center of the main mix
and ).
(S13) (S16)
stereo image, i.e. equally to L and R.
and )
(P12) (P13)
Subgroup SOLO ( + ) follows the mix assignment.
(S33) (S34)
E.g.: If the main mix is selected, then that stereo subgroup
). Aux sends 3
will be monitored in stereo. If mono is also selected,
monitoring is in mono.
) determines
Aux sends
Much of the master section is taken up by master aux
),
sends and returns. We'll start with the sends.
).
Stacked in a vertical column are six master aux send levels,
one for each of buses 1 to 6 ( to
(P41) (P46)
a gain structure of minus infinity to +15 dB. The extra
15 dB of gain comes in once a knob passes a center
detente (representing the "normal" unity gain position),
, while the
enabling insensitive outboard FX to be properly driven.
(for groups
Each aux send has a SOLO button (
(S41)
(7 and 8).
(S31)
as with other areas of mixer, a LOCAL SOLO LIGHT (
which illuminates when any of the AUX master sends
are solo-ed.
Aux returns
Next to the aux sends are the stereo aux returns.
These can be thought of as a dozen extra line inputs
configured as six stereo pairs. On these inputs there
is up to 20 dB of gain available.
Aux returns 1 and 2
Aux returns 1 and 2 have full subgroup routing matrices
, , to enable returning FX to be sent to tape, plus main
(P18) (P19)
mix bus assignment. The functions for aux return
1 (mirrored by aux return 2) are: ROUTING ( / /
(S49) (S50)
/ / ) LEVEL ( ), BALANCE ( ) and SOLO
(S51) (S52) (S53) (P49) (P51)
, ( ). LEVEL controls the amount of signal being blended
(S1) (S54)
into the mix or a subgroup, while BALANCE controls the
). relative amounts of L and R processed signal.
(S22)
Aux returns 3 to 6
And so to aux returns 3 through 6. These too have
a routing matrix ( to for aux return 3), but this
(S55) (S58)
time it is designed to facilitate monitoring rather than
recording. The options are MAIN (L/ R) MIX, and PHONES
1/2. Gain pots and solo switches complete the picture.
SOLO
Below each column of aux returns lies a local solo LED
( & ). These illuminate whenever a SOLO button
(L61) (L74)
in the column above is pressed.
MIX-B master
. routes
(S38) (S37)
sends
(S38)
Only two controls occupy the MIX-B master. offers
(P48)
the standard EURODESK gain of up to +15 dB. is
(S48)
crucial, it routes the MIX-B bus output into the main
and ).
(S35) (S36)
mix bus. MIX-B can have three basic functions. It can
act as an entirely separate mixer-within-a-mixer to
provide a completely separate mix ( UP, DOWN).
(S48) (S23)
It can act as an additional stereo aux feed to FX as well as
a pre fader monitoring aid during mixdown ( UP,
(S48) (S23)
DOWN). It can provide 24 extra B-inputs to the mix (
(S48)
DOWN, UP).
(S23)
Monitoring
Though most of you will want to audition the main
mix most of the time there are exceptions. These include
PFL/SOLO, and 2-TRACK PLAYBACK. The SOURCING matrix
( to ) allows you to monitor the main mix,
(S82) (S85)
). Each one has
the MIX-B and two external sources marked 2-track and
EXTERNAL. The master meters follow whatever source is
being auditioned.
The CONTROL ROOM LEVEL pot sets the level to the
(P86)
control room monitors. This is sourced post the main main
to ), and,
(S46)
mix stereo fader setting: otherwise you wouldn't be able
),
(L47)
to hear your fades. There is also a similar STUDIO volume
pot ( ).
(P82)
Lastly, there is a MONO button ( ), useful for checking
(S86)
the phase correlation and/or coherence of a stereo signal.
Again, this does not affect the main mix output.
Headphones
A SOURCING matrix picks up any or all of MIX-B ( ),
(S76)
CONTROL ROOM (as chosen in monitor section, ),
(S77)
AUX 3/4 ( ), AUX 5/6 ( ) and EXTERNAL ( ).
(S78) (S79) (S80)
In addition to the sources which are directly selectable
from the headphones masters, aux returns 3 to 6 may be
"force-fed" into & from the aux returns masters
(HP1) (HP2)
( , , etc.).
(S55) (S56)
The headphone mix level is controlled by a master
volume pot ( ), and the gain is sufficient to drive
(P75)
headphones directly.
A SOLO button ( ), with its own LED, enables
(S81)
monitoring of the headphones amplifier's output signal.
PFL
Pressing disengages the stereo SOLO bus,
(S95)
and replaces it with a separate mono PFL
(Pre-Fader-Listen) bus.
SOLO
SOLO is short for SOLO IN PLACE, and is the preferred
method for auditioning an isolated signal or a group
of signals. Whenever a SOLO button is pressed,
all unselected channels are muted in the monitors.
Stereo panning is maintained. The SOLO bus is derived
from the output of the channel PANs, aux send/return
pots, etc., and is always post fader. In addition to any
local solo LEDs which might be activated, the ultra-bright
MAIN SOLO LED ( ) illuminates whenever anything is
(L95)
SOLO/PFLed. controls the master SOLO/PFL level.
(P94)
Set to unity gain (center detente), this will match the
mix level.
Talkback
The built in mic (above the main mix faders) allows you
to converse with artists remotely. The most important
controls are the VOLUME ( ) and PHONES & STUDIO
(P99)
button ( ). It is possible to route the talkback mic to
(S99)
any of the following: aux 1, aux 2, subgroups, and phones
and studio ( to ).
(S96) (S99)
Complex headphone or stage monitoring networks
could be constructed where , , aux 1 (pre),
(HP1) (HP2)
aux 2 (pre) and one or more subgroups all feed separate
monitor mixes.
Engaging TALKBACK ( ) dims the control room
(S99)
(monitors, not lights) by -20 dB to restrict the possibility
of feedback. All other talkback routes are unaffected.