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GL2400

 User Guide 

 

This product complies with the European Electromagnetic 
Compatibility directives 89/336/EEC & 92/31/EEC and the 
European Low Voltage Directives 73/23/EEC & 93/68/EEC. 

 

This product has been tested to EN55103 Parts 1 & 2 1996 for use in 
Environments E1, E2, E3, and E4 to demonstrate compliance with the 
protection  requirements  in  the  European  EMC  directive  89/336/EEC.  
During  some  tests  the  specified  performance  figures  of  the  product 
were  affected.  This  is  considered  permissible  and  the  product  has 
been passed as acceptable for its intended use.  Allen & Heath has a 
strict policy of ensuring all products are tested to the latest safety and 
EMC  standards.  Customers  requiring  more  information  about  EMC 
and safety issues can contact Allen & Heath. 

NOTE:

   Any changes or modifications to the console not approved by 

Allen & Heath could void the compliance of the console and therefore 
the user’’s authority to operate it. 

 

GL2400 User Guide AP5597 Issue 2

 

Copyright © 2005 Allen & Heath Limited.  All rights reserved 

 

Allen & Heath Limited  

Kernick Industrial Estate, Penryn, Cornwall, TR10 9LU, UK 
http://www.allen-heath.com 

Limited One Year Warranty 

 

This product is warranted to be free from defects in materials or workmanship for 
a period of one year from the date of purchase by the original owner. 

To ensure a high level of performance and reliability for which this equipment has 
been designed and manufactured, read this User Guide before operating.  In the 
event of a failure, notify and return the defective unit to Allen & Heath Limited or 
its authorised agent as soon as possible for repair under warranty subject to the 
following conditions 

Conditions Of Warranty 

 

1.

 

The  equipment  has  been  installed  and  operated  in  accordance  with  the 
instructions in this User 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 necessary adjustment, alteration or repair has been carried out by Allen 
& Heath or its authorised agent. 

4.

 

This warranty does not cover fader wear and tear. 

5.

 

The defective unit is to be returned carriage prepaid to Allen & Heath or its 
authorised agent with proof of purchase. 

6.

 

Units returned should be packed to avoid transit damage. 

 
In certain territories the terms may vary.  Check with your Allen & Heath agent for 
any additional warranty which may apply. 

Summary of Contents for GL SERIES

Page 1: ...ALLEN HEATH USER GUIDE Publication AP5597 GL2400...

Page 2: ...eath com Limited One Year Warranty This product is warranted to be free from defects in materials or workmanship for a period of one year from the date of purchase by the original owner To ensure a hi...

Page 3: ...t remove or tamper with the ground connection in the power cord Water and moisture To reduce the risk of fire or electric shock do not expose the console to rain or moisture or use it in damp or wet c...

Page 4: ...is surrounded by shock absorbent foam to protect it from damage during transit Always use adequate packing if you need to ship the unit Protect the controls to avoid damage when moving the console He...

Page 5: ...t about audio To help us provide the most efficient service please keep a record of your console serial number and date and place of purchase to be quoted in any communication regarding this product h...

Page 6: ...6 2 3 GRP 4 OO GRP OO 1 GRP O O GRP 2 O O 3 6 4 GRP 6 GRP O 6 O 6 O 1 6 GRP GRP O 6 O O EXT O 6 EXT O 6 IN IN O LEVEL OO 6 O 6 O O R L O 6 O 6 2 O O 3 4 GRP GRP O 6 O 6 O 1 GRP GRP O 6 O EXT O 6 IN O...

Page 7: ...UST BE EARTHED BY THE POWER CORD ATTENTION REMPLACER LE FUSIBLE AVEC UN DES MEMES CARACTERISTIQUES CAUTION FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE FUSE WITH SAME TYPE AND RATING T1 6A L...

Page 8: ...nputs with level trims and common input capability 2 stereo channels each with mic and dual stereo line inputs Stereo channel mic input can cross patch into matrix for ambience feed Stereo channel lin...

Page 9: ...ts Extensive listening evaluation together with solid engineering practice have ensured the console achieves accurate sound reproduction under all conditions Capability We know a thing or two about Du...

Page 10: ...urpose Ensure no part of the case or its lid touches the controls or connectors If you include a rear doghouse to house the connections make sure the cables can be supported in a way that prevents put...

Page 11: ...sole on press the ON OFF switch next to the IEC mains input socket To turn the console off press this switch again Connecting a backup supply A socket is included for plugging in an optional backup po...

Page 12: ...2 30 AUX 3 29 AUX 4 28 AUX 5 27 AUX 6 26 PFL 25 AFL 24 nc 23 nc 22 nc 21 nc 20 14 GRP 3 15 GRP 2 16 GRP 1 17 R 18 L 19 0V CHS GRP 3 33 GRP 2 34 GRP 1 35 R 36 L 37 SYS LINK II OUTPUT OPTION 1 ground 2...

Page 13: ...hile keeping the signal shielding down the length of cable WARNING For operator safety do not remove the ground earth connection in the power lead of the console or connected equipment To avoid interf...

Page 14: ...LINE IN Stereo inputs ST1 and ST2 feed channel 15 and ST3 and ST4 feed channel 16 respectively or can be routed directly to LR These inputs use TRS jacks ST1 3 are unbalanced ST2 4 are balanced Unbal...

Page 15: ...independent sources This is ideal for adding mono or stereo ambience to recordings or in ear monitors fed from the matrix 2 TRACK IN and OUT Unbalanced TRS jack outputs and TRS inputs connect to popul...

Page 16: ...the faders to balance each signal in the mix To ensure optimum gain structure we do not recommend the practice of setting the faders to 0 and mixing using the GAIN controls HPF Switches in the channe...

Page 17: ...s and direct output but does not affect the insert send The red indicator lights when the channel is muted Always mute the channel when switching phantom power or plugging the cables and sources PFL P...

Page 18: ...a mono source may be plugged in to feed both left and right sides of the stereo channel Each input has its own level control to adjust from fully off to 16dB gain Centre position is unity 0dB gain Ro...

Page 19: ...e monitors You can select any combination for the FOH and monitor mode for example just 3 4 giving you two fader subgroups two monitor sends on faders and main LR mix Note The groups always feed the m...

Page 20: ...same type used on stage to listen to and check the various monitor mixes being sent to the performers Together with the group aux REV function the GL2400 can be configured as a compact yet fully feat...

Page 21: ...trices or an independent source to each Plug into EXT1 only to feed one source to all four matrix EXT IN controls Plug L into EXT1 and R into EXT2 only to feed a stereo source to matrix 1 2 and 3 4 So...

Page 22: ...onnect unbalanced sources or cables to inputs with phantom power selected To avoid loud clicks do not press the TALK switch when plugging or unplugging the talkback microphone First select the source...

Page 23: ...16dB dynamic range The signal can pass through many stages which affect its level within the console the channel its EQ fader pan a group mix and its fader on to the main LR mix with its master fader...

Page 24: ...ne of the sub mid or HF drivers is faulty With the noise sent to several speakers at the same time you can listen for comb filtering effects and the severe phasing effect which indicates that one of t...

Page 25: ...plugged into a console with 4dBu outputs connected to a 0dBu input DSP speaker manager or an operator using an SPL sound pressure level meter to measure sound intensity dBu Relative to 0 775Vrms profe...

Page 26: ...5 10 20 L R 1 2 3 4 30 00 24 PFL 10 5 0 5 10 20 L R 1 2 3 4 30 00 17 32 31 30 29 28 27 26 25 M R L 4 3 2 1 10 5 0 5 30 00 20 10 10 5 0 5 30 00 20 10 10 5 0 5 30 00 20 10 10 5 0 5 30 00 20 10 10 5 0 5...

Page 27: ...control of the appropriate main output complete with mute AFL and LED bar meter In Monitor mode the aux outputs are routed to the console main XLR sockets for electronically balanced drive with inser...

Page 28: ...in line delay processor As a rule of thumb delay 1mS per foot difference between the listener and the fill and the listener and the main speakers Now add a few milliseconds Haas effect delay so the li...

Page 29: ...amps produce an accurate and noise free recording Create a stereo recording from the main LR output or from a pair of matrices as described above if recording and mixing live at the same time To recor...

Page 30: ...to adjust the overall volume of the PA Typically the LR tops use fader masters and the aux is on a rotary master The GL2400 overcomes this with an innovative mode switch above the master faders that...

Page 31: ...ed the channel Adjust the gain and balance between the left and right microphones using the two mic GAIN controls Route ST1 to LR as a simple effects return or source input The other channel can be us...

Page 32: ...B S N LR mix noise 16 routed 86dBu 90dB S N Group mix noise 16 routed 86dBu 90dB S N Aux mix noise 16 routed 92dBu 90dB S N Mix noise 16 line 0dB gain 86dB S N Channel HPF 12dB octave below 100Hz Mono...

Page 33: ...2dBu 20dBu max Electronic balance option 75 ohm 4dBu 26dBu max Direct out TRS impedance balanced 75 ohm 0dBu 20dBu max Matrix out TRS impedance balanced 75 ohm 2dBu 20dBu max Electronic balance optio...

Page 34: ...TO LR 2dBu 4dBu BAL OPTION MONITOR RING RIGHT TIP LEFT PHONES OUT AUX 10dB boost AUX MIX GRP AUX REV SL INSERT 2dBu GRP MIX SL L R 3 4 1 2 PAN PRE PRE 10dB boost AUX AUX MIX LR AUX REV SL INSERT 2dBu...

Page 35: ...screws holding the base to the rear and underside of the chassis Carefully lift off the base Configure the internal options Fit any options required referring to the instructions provided Set the opti...

Page 36: ...ou only change these settings if absolutely necessary Stereo Mono aux source The stereo channels feed the auxes with a mono sum of L R This can be changed so that L feeds the odd numbered auxes and R...

Page 37: ...entation and make sure its legs are correctly aligned with the socket Test the output once the work is complete You should measure the same level but opposite polarity signal between hot and ground an...

Page 38: ...1 GRP GRP O 6 O EXT O 6 IN AFL MUTE AFL MUTE REV AFL REV AFL AFL REV AFL REV REV AFL REV AFL AFL AFL MUTE MUTE AFL AFL AFL MUTE MUTE MUTE AFL MUTE PAN GRP2 GRP1 PAN TO LR PAN TO LR GRP4 GRP3 TO LR TO...

Page 39: ...6 O O PRE POST O O 6 EQ IN POLARITY 100Hz 12k 80Hz ODD PAN L EVEN R PRE AUX AUX 4 3 AUX AUX 2 1 O O 6 POST O O 6 O O 6 O O 6 15 LF 15 15 15 180 45 LM 35Hz 70 15 400 1k 250 15 PAD 3k HM 700 500Hz 15 1...

Page 40: ...O O 6 O O 6 15 LF 15 15 15 180 45 LM 35Hz 70 15 400 1k 250 15 3k HM 700 500Hz 15 1k 6k 15k 4k 15 HF GAIN 20 0 50 40 48V 30 6 AUX AUX 5 MUTE 6 O O PRE POST O O 6 EQ IN POLARITY PRE AUX AUX 4 3 AUX AUX...

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