Behringer EURODESK SX4882 User Manual download pdf (Page 5)

5 EURODESK SX4882 User Manual

2. EURODESK Overview

2.1 Architecture

The EURODESK SX4882 is a hybrid SPLIT/INLINE console. Input channels cover

most of the surface from the left, while the outputs to tape are to the right.

Tape monitor returns, however, are housed within the channel strips, not next

to the tape outputs, as would be the case in a conventional “split” design.

Thisarchitecture enables much exibility to be bestowed onto the tape monitor

signal path, not least being its ability to pick up functions easily from the main

channel. Also, during mixdown, when tape tracks are no longer monitored

but MIXED, the signal path between tape input and main channel is kept

to a minimum.

The conguration is 24 into 8 into 24. This means that there are 24 channels,

eight su/jointfilesconvert/347833/bgroups or “submixes” (or four stereo su/jointfilesconvert/347833/bgroups) and 24 tape

monitor returns, one for each channel. There are 24 100 mm channel faders,

eightsu/jointfilesconvert/347833/bgroup faders, and a stereo pair of faders driving the L/R main mix.

In remix mode 48 channels are available, all with EQ and access to the aux buses.

There are six additional stereo FX returns, giving a grand total of 60 separate

line-level inputs: and that’s before you even consider using the su/jointfilesconvert/347833/bgroup insert

points to provide eight more!

There are six aux buses accessed by four potentiometers, two headphone mixes

and professional recording, monitoring and talkback facilities. If you can aord to

lose the extra 24 line inputs, the MIX-B bus can also act as a separate stereo aux

send, giving eight aux buses in all.

A comprehensive set of inputs and outputs include MIC (+48 V), line,

tape(+4 dBu or -10 dBV), inserts all round, direct channel outs and all master

recorder and monitoring options. Just about everything you’d expect from a

massive console.

In addition, a ¼" jack expander bay (INPUT ONLY) allows direct patching into

all buses within the EURODESK (except PFL and SOLO). Hence two EURODESK

consoles may be linked, or the EURODESK coupled to ANY OTHER CONSOLE,

largeor small, provided that the other console has (or can be MADE to have)

similar access (see section19 “Expanding the EURODESK”).

Last, and probably least, two BNC connectors on top of the built-in meterbridge

await optional gooseneck desk lights, available from all good gooseneck desk

light stores. A must for those darkened auditoria, or when you’re into your third

consecutive night in the studio.

2.2 Metering

The 1 to 24 channels have signal (-20 dB,

(L25)

) and overload LEDs (PEAK,

(L2 4)

The built-in meterbridge provides 12 segment bargraph meters for all channels

and su/jointfilesconvert/347833/bgroups as well as for the main mix. By the DISPLAY MODE switch

((S100), top left 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

(you may alter that to pre mute and pre fader by the modication described

inAPPENDIX II.3).

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 unaected by anything else happening in the channel. 0 dB is referenced to

the selected tape operating level (+4 dBu or -10 dBV).

The main mix meters double up as mono PFL or stereo SOLO meters, or 2-track

return meters, or EXTERNAL return meters (in general, what you HEAR is what

you SEE). During PFL/SOLO only the main mix bargraph meters illuminate.

◊ In SOLO/PFL mode a 0 dB meter reading matches an internal operating

level of 0 dBu (0.775 V). However, when looking at the mix, 0 dB is

referenced to +4 dBu, the 2-track operating level. I.e. if only ONE signal

is present in the main mix bus, SOLOing that signal will cause the meter

reading to increase by +4 dB.

3. Input/Output Channel

3.1 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 (S1) and (S3) (see g.3.1 and 3.2). Each channel strip also sports a secondary

B-CHANNEL (g.3.6) Anything routed to a B-channel is directed to a separate

MIX-B bus. (See section3.7 “B-channel” and also section6.2 “MIX-B master”).

3.2 Input switching

First, look at the MIC/LINE switch (S1). In the UP position it selects MIC, in the

DOWN position LINE. The next switch (S3) chooses whether A-channel looks at

INPUT or TAPE. If INPUT is routed to A-channel, TAPE is oered to B-channel.

IfTAPE is routed to A-channel, INPUT is oered to B-channel. Depressing the

PADswitch ((S1a)) lowers an incoming mic signal by -20 dB, if necessary.

(S1a)

(P2)

(S3)

INPUT

(S1)

Fig. 3.1: Input

When laying tracks, it is usual to use the MIX-B inputs for monitoring the signal

from TAPE, while the A-channels take care of microphones, Dl’s, etc. For MIXING

purposes, TAPE tracks are normally “ipped” onto the main channels, leavingthe

B-channels free for other applications, such as oering extra line inputs.

Theserules are, however, made to be broken.

(S2 3)

applies to the B-channel only and replaces the 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

(S 48)

, master section) in this conguration.

Fig. 3.2: Channel input switching architecture

◊ The B-channels 25 to 48 are only routable EN BLOC to the main mix,

via (S48). Therefore, the MIX-B bus can only have one function at any one

time, either as a stereo AUX or secondary mix send ((S48) UP) or as a set

of 24 extra line or tape inputs to the main mix ((S48) DOWN).

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Behringer EURODESK SX4882 User Manual Page 5

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