Allenheath GL4000 USER GUIDE Manual do Utilizador

ALLEN&HEATH GL4000 Dual Function Audio Mixing ConsoleUSER GUIDE PUBLICATION: AP2642

9SYSTEM DIAGRAM

10CONNECTORSProfessional gold plated connector types are used to ensure continued reliableoperation. All the console main inputs and outputs are bala

11SYS-LINK EXPANDER OPTIONAvailable as a kit to be fitted to the console to expand the busses.Uses 4 25-pin D-type connectors (input and output A and

12METERPOD CONNECTORRecessed 16-pin dual row header for connection to the meterpod.LOCAL STEREO MONITORFor connection to a stereo amplifier/speaker sy

13EARTHINGThe connection to earth (ground) in an audio system is important for two reasons:1. SAFETY - To protect the operator from high voltage s

14DO NOT OBSTRUCT VENTILATION OPEN INGS.SEE INSTA LLATION INSTRUC TIONS BEF ORE CONNE CTING TO THE SUP PLY.ALLOW ADEQUATE VENTILATION AROUND THE UNI

15MATCHING THE SIGNAL LEVELSFor best performance it is important that the connected source signals arematched to the "normal operating level"

16MONO INPUT+48V - Feeds +48V to pins 2 and 3 of the input XLR for condensermicrophones which require phantom power.Plug the microphone in before sw

17AUXILIARY SENDS - Route the channel signal to one ormore of 10 auxiliary send busses. These are independentfrom the main outputs and may be used

18STEREO INPUTThe stereo channel has two independent input sections: XLR IN for monomicrophone or line input, and STEREO LINE IN on jacks for sources

1Publication ... AP2642 Issue 3copyright © 2001 ALLEN & HEATH. All rights reservedUSER GUIDECONTENTSWarranty ...

19STEREO MICROHONESThis example shows twocardiod microphones arrangedas an X-Y coincident pair. Thisminimises the phasedifferences which can causepro

20GROUPMATRIX MASTER - Controls the output of the matrix mix. Adjust LEVto trim the output level to match the connected equipment. ON switchesthe

21THE CONSOLE MATRIX - The GL4000 includes a versatile 11 x 4 outputmatrix. This comprises four independent outputs each with level control,ON swit

22LRTHE CONSOLE LR AND LR2 OUTPUTS - Inaddition to the main L and R outputs the GL4000includes a secondary pair of outputs called L2and R2. These f

23MONO2-TRACK STEREO RETURN - The incominglevel can be trimmed from OFF to +10dB gainand routed direct to the LR mix for intermissionor recording re

24THE MONO MIX - The GL4000 includes an independentmix buss for the M (mono) output. Each channel and groupcan be routed direct to this buss by pre

25LAMP CONNECTORS - Two top panel 4-pin XLRconnectors are provided for connection to gooseneck lamps.It is recommended that these are the standard 1

26THE MUTE SYSTEMEach GL4000 input channel, group, aux send and main output (L,R,M) is provided witha mute switch. This turns the audio signal on or

27THE MUTE SWITCHPress MUTE once to mute the channel signal.The red LED will turn on.The audio signal will turn off (channel muted).Mute affects the

28Before starting, decide how you want to use your mute groups. Choosethe operating mode for single or multiple groups. Refer also to the sectionon

2LIMITED ONE YEAR WARRANTYThis product has been manufactured in the UK by ALLEN &HEATH and is warranted to be free from defects in materialsor wor

29PROGRAM A MUTE GROUPPress EDIT GROUPThe red LED will start flashing.This puts the mute system into 'edit mode'.The mute groups are progra

30TURN ALL MUTES OFF OR ON IN A GROUPIt is often useful to turn off (clear) or turn on (set) all the consolemutes within a mute group. This is done i

31MUTE SAFESMute groups, patches and MIDI overwrite the console mutes with the settings held inmemory or an external controller. You may want to prev

32Before starting, decide how you want to use the mute patchsystem. Choose the recall operating mode with or withoutauto increment. If you do not wa

33THE PATCH DISPLAYNORMAL MODEShows selected patch number 0 to 127 or ALLIndicates which patch which will overwrite the console muteswhen

34SCROLL THROUGH THE PATCH NUMBERSThe 128 patches are numbered 0 to 127 . Before 0 thereis a special patch called ALL . This is described later

35THE ALL PATCHBetween patch 127 and 0 is a special patch function calledALL This lets you overwrite all 128 patches with the curr

36QUICKSOLOQuickSolo is a system for checking individual signals or combinations of signals in themix. This is done by muting all channels except fo

37TO DISABLE OR ENABLE QUICKSOLOEnter CONSOLE MODE by pressing SHIFT + ∧ ∧ ∧ ∧ ∧ together.The display indicates So= (solo on)While holding SHIFT + ∧

38MIDIThe Musical Instrument Digital Interface (MIDI) was originally conceived to standardisethe interconnection between keyboards and other instrumen

3INTRODUCTIONThe GL4000 continues ALLEN & HEATH’s commitment to provide high quality audio mixingconsoles engineered to meet the exacting require

39SELECT THE CONSOLE MIDI CHANNELPress and hold SHIFT + PREVIEW PATCH together toenter 'MIDI mode'.The display MIDI dot turns on and the

40CHANNEL MUTESPressing any console mute switch transmits a MIDI Note Onmessage unless MIDI has been disabled. Similarly receivingthe correct Note On

41MIDI DUMP DATAWhen a MIDI DUMP OUT is performed the entire contentsof the console memory is transmitted down the selectedMIDI channel. This include

42TECHNICAL SUPPORTShould you have any queries about the GL4000 console automation system pleasequote the console model, serial number and software ve

43HARD RESETShould the console memory become corrupted it can bereset to the factory defaults by performing a hard reset :Hold down EDIT GROUP + PREVI

44FRONT-OF-HOUSE WITH RECORDING

45USING THE GL4000 FOR FRONT-OF-HOUSE (FOH)The console is positioned within the listening area so that the sound fed to the audiencecan be accurately

46THE MONITORSOtherwise known as foldback or cue sends, the monitor mixes are created from theconsole aux sends. These feed amplifier/speaker systems

47LIVE 2-TRACK RECORDINGA simultaneous stereo recording can be made of the performance by feeding additionalconsole outputs to a 2-track such as a cas

48Mixing system for on-stage control of performers monitorloudspeakers (wedges). Provides 12 monitors (10 wedges + LRsidefills) and a dedicated engin

4 Dual function + live recording capability :Large venue Front-of-HouseDedicated 12 buss (10mix+LR) stage monitorDual function combines Front-of-

49USING THE GL4000 AS A MONITOR CONSOLEThe GL4000 can be easily configured to function as a dedicated 12 buss on-stagemonitor console. Here, the cons

50STEREO IN-EAR MONITORINGThe LR mix can be used to feed a stereo in-ear monitoring system, often preferred bylead performers. A more precisely balan

51OUTPUT LEVEL MATCHING AND BALANCEThis example shows the matrix and LR2 outputs feeding the speaker system. Here allthe output controls are grouped

52INTERNAL LINK OPTIONSThe GL4000 is configured to satisfy most applications that should beencountered. However, the following internal link options

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5THE RANGEThe following GL4000 models and options areavailable. For further details please contactyour Allen & Heath agent :GL4000-824 - 24 cha

6DIMENSIONS AND WEIGHTSDimensions shown in millimeters. UNPACKED Width Depth Height Wt (kg) GL4000M-824

7SPECIFICATIONS0dBu = 0.775 Vrms Reference for high level equipment +4dBu = 1.23 V0dBV = 1 Vrms Reference for low level equipment -10dBV = 310 mV

8MODE SWITCHINGProtected underpanel mode switches set the console architecture according to the required application, for example FOHor stage monitor.