ALLEN & HEATH GL4000 User Manual Download Page 49 | Manualshive

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Mixing system for on-stage control of performers monitor
loudspeakers (wedges). Provides 12 monitors (10 LR
sidefills) and a dedicated engineers 'listen' wedge output.

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ONITOR

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Summary of Contents for GL4000

Page 1: ...ALLEN HEATH GL4000 Dual Function Audio Mixing Console USER GUIDE PUBLICATION AP2642...

Page 2: ...it 14 Matching the Signal Levels 15 Mono Input Channel 16 Stereo Input Channel 18 Stereo Channel Applications 19 Group Section 20 LR Section 21 Mono and Master Section 23 The Mute System 26 Mute Group...

Page 3: ...r Guide 2 The equipment has not been subject to misuse either intended or accidental neglect or alteration other than as described in the User Guide or Service Manual or approved by ALLEN HEATH 3 Any...

Page 4: ...the console Check the unit for correct AC mains voltage setting before switching on Allow adequate space around the unit for ventilation CONNECTIONS Use audio connectors and cables only for their int...

Page 5: ...ing Output meter selector switches for main or aux Talkback to L R M groups matrix and to each aux 2 track replay to L R and monitor The console is constructed using extruded aluminium beams steel pan...

Page 6: ...ybeexpandedtoamaximumof48channels RPS11 300W rack power unit with DC cable RPSD2 Dual supply combiner monitor 1U19 rackunitwhichallowstwopowerunitsto connect to one console for redundant supply backup...

Page 7: ...77 170lbs GL4000 8M 255 10 748 29 5 285 11 2 9 20lbs RPS11 483 19 232 9 1 135 3U 10 22lbs RPSD2 483 19 180 7 1 45 1U 6 13lbs PACKED Width Depth Height Wt kg GL4000M 824 1702 67 900 35 390 15 4 82 181...

Page 8: ...1kHz Mic to mix 40dB 0 0 5dB Line to mix 0dB 0 0 5dB DISTORTION THD noise measured 1kHz 20dBu Mic to mix 40dB 0 006 Line to mix 0dB 0 006 CROSSTALK Referred to driven channel 1kHz Channel to channel...

Page 9: ...serts or aux effects sends on jack as required TRIM ON routes the group output signal through a pre post fader selector and level trim This lets you record the groups independent of the subgrouping to...

Page 10: ...9 SYSTEM DIAGRAM...

Page 11: ...cket tip hot Impedance balanced 50 ohm 0dBulinelevelforconnectiontobalancedorunbalancedequipment INSERT SEND Used to send the channel signal to external effects and signal processing equipment post pr...

Page 12: ...ally balanced 75ohm 4dBu line level 27dBu maximum into 600 ohm load Capable of driving long cable runs without loss or interference MODE SWITCHING Set the underpanel mode switches for the intended con...

Page 13: ...put for 2 track recording broadcast or additional speaker and zone feeds 3 pole 1 4 jack socket tip hot Impedance balanced 50ohm 0dBu nominal line level Can swap with the aux output XLRs and inserts t...

Page 14: ...t flow and so more audible noise This condition is usually detected as a low frequency hum or buzz at mains frequency or its harmonics To ensure operator safety and trouble free audio performance from...

Page 15: ...o the DC voltages required to power the console It also provides 48V phantom power for use with high quality powered microphones The presence of AC mains voltage is shown on the power unit frontpaneln...

Page 16: ...connected amplifier Normal operation should result in fader levels around the 0 mark Note that when reversed with the auxes the matrix and LR2 output level trims can be used to match the console to th...

Page 17: ...y by sweeping from fully anticlockwise filter off to the maximum 400Hz Setting the cutoff to 50Hz will have little effect on most program material but will protect the low frequency speaker drivers Th...

Page 18: ...for a multitrack recording send with independent level control MUTE When illuminated the channel signal is turned off muted This affects both pre and post fade signals unless the pre fade aux has been...

Page 19: ...al monitor without affecting the main outputs DIRECT TO L R routes the stereo line signal to L R independent of the mainstereochannelwhichyoumaybeusingasamic lineXLRinput The GAIN control adjusts the...

Page 20: ...esonance on top and snare sound below Reversing the phase of the lowermiccancompensatefor the opposite skin resonance between the mics Signal processing such as noise gates can be patched in as shown...

Page 21: ...LR and M You can also select whether the group output is sourced pre or post the group fader This facility is most useful when using the group outputs for recording The recording can be adjusted inde...

Page 22: ...of the L and R mix MATRIXSENDS Theseroutethegroupsignaltooneormoreof4matrix mix busses The source may be selected pre or post group fader The level may be adjusted from off to 6dB boost The normal 0 l...

Page 23: ...utput level to match the connected equipment ON switches the output on or off AFL lets you monitor the signal post level trim post insert but pre ON switch METER 12 segment 3 colour peak reading meter...

Page 24: ...ll display PFL in stereo if a stereo source is selected If a mono source is selected both meters display the mono PFL signal STEREO MONOCOMPATIBILITY Youcan display and listen to the mono compatibilit...

Page 25: ...ader As with the groups and LR automated MUTE a pre fade mix meter matrix sends insert and AFL are available STAGE MONITOR MODE Unique to Allen Heath consoles an underpanel mode switch determines how...

Page 26: ...tual signal level HEADPHONES MONITOR You can plug in up to two headphone sets one on the top panel and the other safely protected under the armrest The headphone monitor has its own PHONES LEV volume...

Page 27: ...to check group settings before selection Individual channels can be made safe so that they are not affected by the groups If not used the group section can be disabled to prevent accidental operation...

Page 28: ...roup or patch Alternatively you couldsetallmutesonandworkwithjusttheactivechannels Once cleared or set in this way you can overwrite and edit selected groups and patches or all 128 patches using the A...

Page 29: ...group lets you mute a selected combination of channels with a single key press Applications include muting unused channels when mixing different bands muting all channelsexcept2 trackplaybackduringin...

Page 30: ...Toeditanothergrouppressanother MUTEGROUP switch The settings of the original group will be stored The new group LED will start flashing Select channel mutes for this group Press EDIT GROUP again to ex...

Page 31: ...mode Press the MUTE GROUP to be edited The mute group LED will start flashing The green SAFE PREVIEW LEDs below the MUTE switches will indicate which channels are part of the group Press SHIFT MUTE G...

Page 32: ...ups All input channels groups aux sends L R and M can be made safe Note that the mute safes do not affect QuickSolo which has its own safes facility described later The safes setting can be archived v...

Page 33: ...re turned off MUTE PATCHES A mute patch lets you store the console mute on off settings to be recalled with a single key press This is much like taking a snapshot of the console settings Mute patches...

Page 34: ...CH flashing Displayed patch is not the same as the last patch recalled This is always the case in auto increment mode where the display automatically steps up ready for recall CLEAR OR SET ALL MUTES F...

Page 35: ...e required patch Press STORE The patch is overwritten with the console setting PREVIEW A MUTE PATCH Press PREVIEW The green LED will start flashing Scroll or to select the required patch The green SAF...

Page 36: ...uted channel mutes on before editing the patches where they are not muted Note that the ALL function overwrites all 128 patches and should be used with care A confirm function is included to prevent a...

Page 37: ...urns so that the soloed channels are heard with effects Safe channels can be previewed and edited before operating QuickSolo If not needed QuickSolo can be disabled USING QUICKSOLO Press and hold QUIC...

Page 38: ...solo system This works in the same way as the mute safes described earlier but affects solo and not the mute groups or patches Any mutes made safe can be previewed and edited before QuickSolo is activ...

Page 39: ...control effectsandinstrumentpatchcontrol simultaneouscontrolofseveralconsoles and archiving of the mute settings for later recall Pressing console mutes transmits MIDI Note On messages Recalling patc...

Page 40: ...own While holding SHIFT PREVIEW scroll through the MIDI channel numbers using or Leave the display set to the required MIDI channel number 1 to 16 Release SHIFT PREVIEW to exit DISABLE THE CONSOLE MID...

Page 41: ...sabled Similarly receiving the correct Program Change message will recall a console patch unless disabled Console patches are directly mapped to MIDI Program Change numbers 0 to 127 Running status is...

Page 42: ...the duration of the dump around 15 seconds While dump is in progress the mute group and patch system is locked out However the channel mutes may be operated in the normal way so that live operation m...

Page 43: ...etects fallingvoltageandwritesthesettingstonon volatilememory On power up these settings are restored Mains power fluctuations brown outs are detected with error code readout CONSOLE DC POWER INDICATO...

Page 44: ...played This is a two part message comprising an error number and an error code For example should a MIDI Dump In error be detected the following error number will be displayed En0 Press any automation...

Page 45: ...44 FRONT OF HOUSE WITH RECORDING...

Page 46: ...d theatre systems include a mono stack hung centrally above stagefront Here themainsoundsourcesuchasvocalsissenttothemonostackwhile music and effects may be sent to LR The stereo image is usually kept...

Page 47: ...EO PFL If it is more convenient to use jack outputs instead of XLRs for the effects sends then simply press OUT REV to swap with the related matrix or LR2 output For local effects associated only with...

Page 48: ...ACK RETURN sockets You can check the recording using headphones or the local monitor system by pressing 2 track STEREO PFL The L R and M meters show the stereo and mono levels of the recording Press M...

Page 49: ...48 Mixing system for on stage control of performers monitor loudspeakers wedges Provides 12 monitors 10 wedges LR sidefills and a dedicated engineers listen wedge output ON STAGE MONITOR...

Page 50: ...eters 9 and 10 LR are not interrupted by PFL The post insert pre fade signal level can be checked on the buss meters the output level on the main meters Use TB TO AUX to talk to each monitor as requir...

Page 51: ...the matrix send controls pre or post fader as selected The 4 matrix outputs can be used for recording effects additionallocalmonitoringandsoon Notethatthemonomix is available through the matrix EFFEC...

Page 52: ...amplifiers This also provides an insert on each output for graphic EQ delays and other signal processing devices Inserting graphics lets you tune the frequency response of each speaker in the system f...

Page 53: ...switched Re position wire links Set the pre fade aux sends to be pre EQ rather than post EQ Re position a wire link Set the pre fade aux links to be pre muteratherthanpost mute Re position a wire link...

Page 54: ...53...

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