Allen heath gl2800 инструкция на русском

• Page 1: User Guide

  ALLEN&HEATH GL2800 USER GUIDE Publication AP6095…

• Page 2: Warranty

  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. GL2800 User Guide AP6095 Issue 3 Copyright © 2006 Allen & Heath Limited. All rights reserved ALLEN&HEATH…

• Page 3: Important Safety Instructions

  Installation: Install console accordance with instructions printed in this User Guide. Do not connect the output of power amplifiers directly to the console. Use audio connectors and plugs only for their intended purpose. GL2800 User Guide…

• Page 4: General Precautions

  The wire which is coloured Brown must be connected to the terminal in the plug which is marked with the letter L. Ensure that these colour codes are followed carefully in the event of the plug being changed. GL2800 User Guide…

• Page 5: Table Of Contents

  Introduction Welcome to the Allen & Heath GL2800, the latest generation of the popular GL series of dual function live sound mixing consoles. We have tried to keep this user guide brief and to the point. Please read it fully before starting. Included is information on installing, connecting and operating the console, panel drawings, system block diagram and technical specification.

• Page 6: Panel Layouts

  POST POST EVEN EVEN EVEN EVEN MUTE MUTE MUTE MUTE MUTE MUTE MUTE MUTE MUTE MUTE MUTE MUTE MUTE GRP1 GRP2 GRP3 GRP4 GRP5 GRP6 GRP7 GRP8 AUX1 AUX2 AUX3 AUX4 AUX5 AUX6 AUX7 AUX8 AUX9-10 LISTEN GL2800 User Guide…

• Page 7
  LINE IN LINE IN LINE IN LINE IN LINE IN MIC IN MIC IN MIC IN MIC IN MIC IN MIC IN MIC IN MIC IN SYS-LINK V2 CONSOLE EXPANDER INPUT ( option ) INPUT A INPUT B GL2800 User Guide…

• Page 8: Introducing The Gl2800

  Introducing the Allen & Heath GL2800 The GL2800 is an 8-bus dual function analogue mixing console designed for professional audio applications. Whether mixing FOH, monitors or both, recording live or in the studio, installed in a busy venue, out on the road touring, or earning its keep in rental stock, the GL2800 provides the perfect solution.

• Page 9
  Sys-Link V2 console expansion… and much more. We hope you enjoy being as creative using the GL2800 as our team enjoyed creating it.

• Page 10: Installing The Console

  Installing the Console The GL2800 has a space saving, compact chassis design. This is convenient both in saving seats for the paying audience in a busy venue, and in reducing the size, complexity and weight of flight casing for on-the-road use. The control surface has a 10 degree slope for optimum visibility during operation.

• Page 11: Connecting Power

  One will automatically take over should the other be switched off or stop working. The recommended backup supply for the GL2800 is a second RPS11. Only use the recommended Allen & Heath power supply unit. Do not attempt to modify any other power unit to work with the console.

• Page 12
  Female XLR plug XLR male plug 3=cold — 3=cold — UNBALANCED UNBALANCED INPUT / OUTPUT HEADPHONES UNBALANCED Sleeve=ground link Ring to Sleeve Ring=RIGHT Tip=LEFT INSERT Sleeve=ground Sleeve=ground Ring=cold — Ring=return BALANCED UNBALANCED Tip=hot + Tip=send SYS-LINK V2 OPTION GL2800 User Guide…

• Page 13: Audio Connections

  Audio Connections The GL2800 uses professional grade 3 pin XLR and 1/4″ TRS (3 pole) jack sockets. To ensure best performance, we recommend that you use high quality audio cables and connectors, and take time to check for reliable and accurate cable assembly. It is well known that most audio system problems are due to faulty or sub standard interconnecting leads.

• Page 14: The Console Connectors

  The console has two 4pin XLR sockets to plug in standard 12V gooseneck lamps to illuminate the operating surface when working in a dark environment. Only use lamps intended for this purpose. recommend the Allen & Heath LEDlamp with cool white LED illumination and a built in dimmer. GL2800 User Guide…

• Page 15: Operating Modes

  L and R signals. Use these to feed local speaker or other monitor systems. SYS-LINK V2 OPTION Blank plates are fitted here as standard. The GL2800 Sys-Link V2 (version 2) input/output option kit is available from Allen & Heath. Refer to OPTIONS later in this guide. GL2800 User Guide…

• Page 16: Mono Input Channel

  Check that you are using the best microphone type and placement before using the EQ. Start with the EQ set flat and apply only as much boost or cut as is really needed. When dealing with problem frequencies cut rather than boost where possible. GL2800 User Guide…

• Page 17
  0dB position. MUTE GROUPS NOISE Press these switches to add the channel to Mute Groups 1 to 4 as required. Pressing the master mute switch mutes all channels assigned to that group. GL2800 User Guide…

• Page 18: Stereo Input Channel

  The STEREO Input Channel +48V Each GL2800 stereo channel features a mono microphone preamp as well as a stereo line input. These sources can be mixed together POLARITY into the channel or split using the mic breakpoint, so providing a…

• Page 19: Stereo Return Channel

  ST3-4 can be routed to Groups 3-4. FADER A 60mm stereo fader provides +10dB maximum boost above its normal unity gain 0dB position. Applications for the stereo channels and returns are described later in this user guide. GL2800 User Guide…

• Page 20: Group/Aux Masters

  A 100mm smooth travel fader controls the group mix output level. Note that it becomes the aux mix master in monitor mode (REV pressed). The fader provides +10dB maximum boost above its normal unity gain 0dB position. GL2800 User Guide…

• Page 21: Mute, Aux 9-10 And L-R-M Masters

  Together with the group/aux REV function, the GL2800 can be configured as a compact yet fully featured monitor console. GL2800 User Guide…

• Page 22: 12X4 Matrix

  12×4 MATRIX The matrix adds to the powerful multi-tasking capability of the GL2800. It provides a set of 4 additional console outputs. It is a ‘mixer within a mixer’ creating its output from any combination of the groups, main LR mix and external inputs. It can be used to provide duplicate main outputs or to create new mixes from these outputs.

• Page 23: Track Replay And Console Monitor

  2TRK 9-10 LATCH MTX1 Stereo Monitoring The GL2800 has been designed to offer TALK STEREO MTX2 maximum capability for working with multiple stereo mixes such as IEM and recording feeds. It is important to be able to hear exactly what you are sending from the console.

• Page 24: 2-Track Replay And Console Monitor .23 Talkback And Signal Generator

  9-10 9-10 STEREO WARNING: We recommend you turn off the signal generator MONITOR once you have finished using it to test and line up your system. This will prevent accidental operation during the show. GL2800 User Guide…

• Page 25: Gain Structure

  GL2800 live sound mixing console. They are written as a concise reference to spark your imagination to creatively and effectively deal with the many challenges now faced in modern day mixing.

• Page 26: Using The Oscillator / Noise Generator

  Testing a system with pink noise through the speakers is often referred to as ‘pinking the room’. 9-10 The GL2800 signal generator is an invaluable tool for calibrating LATCH and testing the system during setup. To prevent any unexpected…

• Page 27: Using Pfl / Afl

  We recognise the importance of correct gain structure and signal handling. The GL2800 includes LED meters for every input channel and main output, as well as a pair of high resolution meters dedicated to monitor duty only.

• Page 28: Polarity

  This may result in frequency selective or full range hearing loss. Adhere to the sound level regulations which may apply to the venue… and common sense! GL2800 User Guide…

• Page 29: Dual Functionality

  The GL2800 takes dual functionality a thoughtful stage further with the advent of new engineering practices such as multi-media and IEM (in-ear monitor) mixing, and computer based live multi-track recording. The key principles of dual functionality are: •…

• Page 30: Applications For The Matrix

  One way to do this is to feed the PA from a pair of matrices, and then use EXT Inputs to combine the external console with the main LR mix. GL2800 User Guide…

• Page 31: Create Iem Mixes With Ambience

  You could also add in ambience as described above to give the recording more life by including audience reaction and natural reverberation. Recording with the GL2800 The console is equally at home recording live or in the project studio.

• Page 32: Mix And Aux-Fed Subs

  PA. Typically the LR (tops) use fader masters, and the aux is on a rotary master. The GL2800 overcomes this with the monitor mode ‘REV’ switch that swaps the rotary aux master with the related fader group master.

• Page 33: Using The Stereo Channels

  This is configured using recessed mode switches which protect from accidental operation during a show. The GL2800 provides 6 stereo inputs in a compact format. Together with the 2 mics the stereos provide for a host of space saving applications:…

• Page 34: Specifications

  Shelving +/-15dB, 80Hz Power supply External RPS11 IEC input External Input for optional RPS11 backup supply Mechanical Width 944mm (37.2”) 1171mm (46.1”) 1398mm (55”) 1625mm(64”) 1852mm(73”) Depth 650mm (25.6”) Height 170mm (6.7”) Weight 29kg(63.8lbs) 35kg(77lbs) 41kg(90.2lbs) 47kg(103.4lbs) 53kg(116.6lbs) GL2800 User Guide…
• Page 35
  Talkback/osc out TRS impedance balanced <75 ohm, +20dBu max Lamp 4-pin XLR max 12V 5W lamp GL2800 Series Part Numbers 22 mic/line, 2 mic/stereo, 8 group console GL2800-24/v 30 mic/line, 2 mic/stereo, 8 group console GL2800-32/v 38 mic/line, 2 mic/stereo, 8 group console…

• Page 36: System Block Diagram

  LEVEL GRP6 MATRIX OUT GAIN PRESS TO TALK MTX1-2 TALKBACK WEDGE DIM MIC IN GRP7 MTX3-4 +6dB boost TIP= + 2= + AUX1-2 GRP8 IMPEDANCE BALANCED LATCH AUX3-4 +4dBu BAL OPTION -2dBu BALANCED AUX5-8 MATRIX 1-4 AUX9-10 GL2800 User Guide…

• Page 37: User Options

  User Options The GL2800 has a versatile architecture which should satisfy most applications you may encounter without modification. However, the following internal options provide alternative settings for those applications that may demand them. Access is required to the internal assemblies.

• Page 38
  WARNING: Do not connect 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. GL2800 User Guide…
• Page 39
  37way D connectors for linking to other Allen & Heath consoles already fitted with Sys-Link V2. The GL2800 can become an input channel expander (slave) or have its number of input channels expanded (master) when linked to other consoles.

• Page 40: Cue Sheets

  TO LR TO LR L-R TO M WEDGE P/AFL MODE MUTE MUTE MUTE MUTE MUTE MUTE MUTE MUTE MUTE GRP1 GRP2 GRP3 GRP4 GRP5 GRP6 GRP7 GRP8 AUX1 AUX2 AUX3 AUX4 AUX5 AUX6 AUX7 AUX8 AUX9-10 LISTEN GL2800 User Guide…

• Page 41
  9-10 9-10 9-10 9-10 9-10 STEREO STEREO STEREO STEREO STEREO STEREO STEREO STEREO POST POST POST POST POST POST POST POST EVEN EVEN EVEN EVEN EVEN EVEN EVEN EVEN MUTE MUTE MUTE MUTE MUTE MUTE MUTE MUTE GL2800 User Guide…
• Page 42
  9-10 9-10 9-10 9-10 9-10 STEREO STEREO STEREO STEREO STEREO STEREO STEREO STEREO POST POST POST POST POST POST POST POST EVEN EVEN EVEN EVEN EVEN EVEN EVEN EVEN MUTE MUTE MUTE MUTE MUTE MUTE MUTE MUTE GL2800 User Guide…

• Страница 1

  ALLEN & HEATH USER GUIDE Publication AP6095 GL2800[…]

• Страница 2

  2 GL2800 User Guide This product complies with the European Electromagnetic Compatibi lity 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 EN55 103 Parts 1 & 2 1996 for use in Environments E1, E2, E3, and E4 to demonstrate compliance with the protection re[…]

• Страница 3

  GL2800 User Guide 3 Important Safety Instructio ns WARNINGS — Read the following before proceeding : ATTENTION: RISQUE DE CH OC ELECTRIQUE – NE PA S OUVRIR Read instructions: Read and retain these s afety and operating instructions for future reference. Adhere to all warnings printed here a nd on the console. Follow the operating instructions pri[…]

• Страница 4

  4 GL2800 User Guide General Precautions Damage To prevent damage to the controls and cosmetics avoid placing heavy objects on the control surface, scratching the surface with sharp objects, or rough handling a nd vibration. Environment Protect from excessive dirt, dust, heat and vibration when operating and storing. Avoid tobacco ash, smoke, drinks[…]

• Страница 5

  GL2800 User Guide 5 Introduction Welcome to the Allen & Heath GL2800 , the latest generation of the popular GL series of dual function live sound mixing consoles. We have tried to keep this user guide brief and to the point. Please read it fully before starting. Included is information on installi ng, connecting and operating the console, panel[…]

• Страница 6

  6 GL2800 User Guide PFL PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 10 5 0 5 10 20 30 00 PFL PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 10 5 0 5 10 20 30 00 SIG 0 +6 PK! PFL M4 M3 M2 M1 7-8 5-6 3-4 1-2 L-R M 10 5 0 5 10 20 30 00 SIG 0 +6 PK! PFL M4 M3 M2 M1 7-8 5-6 3-4 1-2 L-R M 10 5 0 5 10 20 30 00 GRP8 AUX8 GRP7 AUX7 GRP6 AUX6 GRP5 AUX5 GR[…]

• Страница 7

  GL2800 User Guide 7 The Range: GL2800-24 22 mono mic/line, 2 mic/ ster eo line, 2 dual stereo returns GL2800-32 30 mono mic/line, 2 mic/ ster eo line, 2 dual stereo returns GL2800-40 38 mono mic/line, 2 mic/ ster eo line, 2 dual stereo returns GL2800-48 46 mono mic/line, 2 mic/ ster eo line, 2 dual stereo returns GL2800-56 54 mono mic/line, 2 mic/ […]

• Страница 8

  8 GL2800 User Guide Introducing the Allen & Heath GL2800 The GL2800 is an 8-bus dual function analogue mixing console desi gned for professional audio applicatio ns. Whether mixing FOH, monitors or both, recording live or in the studio, installed in a busy venue, out on the road touri ng, or earning its keep in rental stock, the GL2800 provides[…]

• Страница 9

  GL2800 User Guide 9 Here are just a few key points we considered when specifying the GL2800 : Affordability We understand your need to work within a realistic budget and know you w a n t t o g e t t h e v e r y b e s t r e t u r n f o r y o u r i n v e s t m e n t . W e k n o w t o o t h a t e v e n t h e l o w e s t budget shows put the same tough[…]

• Страница 10

  10 GL2800 User Guide MONO INPUTS x 8 MONO I/P x 6 ST I/P x 2 MASTER SECTION MONO INPUTS x 8 MONO INPU TS x 8 MONO INPUTS x 8 MONO INPUTS x 8 MONO INPU TS x 8 GL 28 00- 840 = 1398 GL 28 00- 848 = 1625 GL 28 00- 856 = 1852 GL 28 00- 832 = 1171 GL 28 00- 824 = 944 650 640 6 3 4 5 168 9 19 62 58 Inst alling the Console The GL2800 has a sp ace saving, c[…]

• Страница 11

  GL2800 User Guide 11 Connecting Power Read and understand the Important Safety Instructions printed at the start of this guide, and the warnings printed on the rear of t he co nsole. Check that your l ocal mains supply voltage is the same as that marked on the rear of the RPS11 power unit. Check that the correct mains lead with moulded plug has bee[…]

• Страница 12

  12 GL2800 User Guide 1=ground 2=hot + 3=cold — BALANCED Female XLR plug UNBALANC ED link Ring to Sleev e Sleeve=ground Ring=cold — Tip=h ot + UNBALANC ED BALANCED Sleeve=ground Ring=RIGHT Tip=LE FT HEADPHONES TRS jack plug TS jack plug XLR male plug XLR female plug RCA phono jack s 2 3 1 1 3 2 Tip Sleeve Ring Tip Sleeve INPUT OUTPUT 1 2 3 XLR male […]

• Страница 13

  GL2800 User Guide 13 Audio Connections The GL2800 uses professional grade 3 pin XLR and 1/4″ TRS (3 pole) jack sock ets. To ensure best performance, we recommend that you use high quality audio cables and connectors, and take time to check for reliab le and accurate cable assembly. It is well known that most audio syste m problems are due to f[…]

• Страница 14

  14 GL2800 User Guide The Console Connectors MONO CHANNEL MIC / LINE IN The LI NE (PAD) switch selects either the MIC XLR or the LINE TRS ja ck as the input source. The XLR is normalled through the TRS jack so that it can be used for microphone or line level sign als when nothing is plugged into the jack socket . This gives the channel preamp a mass[…]

• Страница 15

  GL2800 User Guide 15 GROUP, L, R, M OUT The main console mix outputs are on electronically balanced XLR. Thes e produce the professional standard +4dBu when the meters read ‘0’, and provid e up to a maximum +26dBu. The L, R and M outputs typically feed the house PA system in live sound mixing, or 2-track and mono recorders in studio mixing . In[…]

• Страница 16

  16 GL2800 User Guide The MONO Input Channel +48V Switches +48VDC to the ch annel input XLR for powering microphones or DI boxes that need phantom power. The power is current limited through 6k8 ohm resistors t o pins 2 and 3. WARNING: Do not connect unbal anced sources or cables to inputs with phantom power selected. To avoid loud clicks always mut[…]

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  GL2800 User Guide 17 AUX SENDS T h e s e r o t a r y c o n t r o l s a d j u s t h o w m u c h c h a n n e l signal is mixed to each of the aux outp uts. They adjusts fr om fully off to +6dB boost. Unity gain 0d B is marked at 3 o’clock positi on. AUX SENDS 1-8 Mono aux sends with independent control. AUX SENDS 9-10 A dedicated stereo aux send wi[…]

• Страница 18

  18 GL2800 User Guide The STEREO Input Channel Each GL2800 stereo channel features a mono microphone pream p as well as a st ereo line input. These sources can be mixed together into the channel or split using the mic break point, so providing a unique flexibility. For example, you could patch the mic stage as an independent preamp for an ambience m[…]

• Страница 19

  GL2800 User Guide 19 The STEREO Return Channel Two additional dual stereo return chan nels are provided. Each has two stereo line inputs wh ich can be mixed together or used separately. ST1 and ST3 can be routed directly to LR instead of the return channels. This gives you the flexibility of mixing in four more stereo sources in a small panel space[…]

• Страница 20

  20 GL2800 User Guide The GROUP / AUX Masters AUX 1-8 MASTERS Each aux mix has a master level control that adjusts the output level to match external equipment, or trims the monitor, effect or other send without affecting the mix balance. Up to +10dB boost is available above the normal 0dB position. Note that this becomes the group master in monitor[…]

• Страница 21

  GL2800 User Guide 21 The MUTE, AUX 9-10 and L-R-M Masters MUTE MASTERS 1-4 Press to mu te all the inpu t channe ls assigned to the mute group. An y combination of masters may be active at any time. The red LED indicate s that the master is active. AUX 9-10 MASTER Cont rols t he mas ter lev el of s tereo Aux 9- 10. Up to +10dB boost is available abo[…]

• Страница 22

  22 GL2800 User Guide 12×4 MA TRIX The matrix adds to the powerful multi-tasking capability of the GL2800 . It provides a se t of 4 additional console outputs. It is a ‘mixer within a mixer’ creating its output fro m any combination of the groups, main LR mix and external i nputs. It can be used to provi de duplicate main outputs or to create ne[…]

• Страница 23

  GL2800 User Guide 23 2-TRACK REPLA Y and CONSOLE MONIT O R 2TRK REPLAY A stereo source such as a recording playback or walk-in CD can be routed directly to the main LR mix. Adjust its level from fully off to +10dB gain using the rota ry control. You can check the source on the meters and in the headphones before bringing it into the mix by selectin[…]

• Страница 24

  24 GL2800 User Guide T ALKBACK and SIGNAL GENERA TOR TALKBACK Individually assignable ta lk back is available to all the main outputs. Plug in a suit able cable or gooseneck microphone. A good quality dynamic or condenser vocal microphone is recommended. Note that +48V phantom power is avail able at the XLR as standard. If you prefer, this can be d[…]

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  GL2800 User Guide 25 GL2800 Applications and Operating Tip s The following is a collection of brief descriptions , application notes, hints and tips to help the operator underst and some of the technical terms referred to, and to get the most out of the uniq uely capable GL2800 live sound mixing console. The y are written as a concise reference to […]

• Страница 26

  26 GL2800 User Guide Using the Oscillator / Noise Gene rator T h e GL2800 includes a useful sig nal generator able to pr oduce a pure 1kHz sin e wave tone, or a pink noise test source. This is invaluable in testing the system components and setting up correct gain structure. The generator can be routed independently to the various console outputs. […]

• Страница 27

  GL2800 User Guide 27 Using PFL / AFL Allen & Heath are renowned for b ringing you the most comprehensive engineer’s monitoring system i n consoles at this price point. We recognise the importance of correct gain structure and signal handling. The GL2800 includes LED meters for every input channel and main output, as well as a pair of high res[…]

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  28 GL2800 User Guide Polarity R e f e r s t o t h e p o s i t i v e ( + ) a n d n e g a t i v e ( — ) w i r e s o f a loudspeaker or balanced audio connection. The console input channels include POLARITY switches which reverse the + and – input connections. Some applications include correcting for reverse wired cables, correcting for microphone p[…]

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  GL2800 User Guide 29 Dual Functionality Now an industry standard, Allen & He ath pioneered thi s feature with the introduction of the first GL consoles in the ‘90s. In the past it wa s necessary to stock two different types of li ve sound console, one for mixing FO H (front-of-house), the other designed for mixing o n-stage monitors. With the[…]

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  30 GL2800 User Guide Applications for the Matrix The matrix is a ‘mixer within a mixer’, a versatile toolbox of output s you can use t o satisfy a host of applications. Each of the 4 output s is mixed from any combination of the groups, L, R, M and an external input as dialled up on the 12 source rotaries (hence a ‘12×4’ matrix). Its master[…]

• Страница 31

  GL2800 User Guide 31 Create IEM Mixes with Ambience I n M o n i t o r mode the matrix continues to be fed with the 8 groups, L, R and M mixes. You can use these to create additional, ind ependent monitor mixes. Together with the auxes these give you as many as 14 mixes. Create mono or stereo in-ear monitor feeds u sing single or paired matrices, fo[…]

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  32 GL2800 User Guide Mix and Aux-Fed Subs Driving the PA system sub bass speakers with their own mix has t wo main advantages. First, the mi x is much cleaner because only sources that generate the low frequencies, for example kick drum, bass guitar, keyboards and sound effects are sent to the subs. Low fr equency bleed from these sources into open[…]

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  GL2800 User Guide 33 Using the Stereo Channe ls The two full feature stereo channels and the two dual stereo retu rns p resent a unique flexibility. The channels each include a patch able mic input and a stereo line input. The returns each include two stereo inputs which c an be mixed together or used separately. The mic preamp has a TRS jack MIC O[…]

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  34 GL2800 User Guide S pecifications Performanc e Maximum input level Mic +34dBu (inc pad) CH Line +34dBu Other Line +20dBu Maximum output level XLR +26dBu Jack +20dBu Internal headroom Channels +20dB M i x + 2 2 d B Meters 3 colour, quasi peak response Sensitivity 0VU = +4dBu at XLR output Master meters 12 segment -30 to +16dB Channel meters 4 seg[…]

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  GL2800 User Guide 35 Connections Mono channel XLR balanced pin 2 hot Sensitivity -60 t o +14dBu TRS balanced, tip hot Sensitivity -40 to +14dBu Total gain range 74dB P a d o u t ( M I C ) 2 k o h m Pad in (MIC or LINE) >10k ohm, -20dB attenuation Max input level +34dBu XLR phantom power +48V, on/off Stereo channel Mic in Same as mono channel Ste[…]

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  36 GL2800 User Guide System Block Diagram IMPE DANCE BALANCE D R L MONITOR OUT R L MONITOR MONITO R RING = RIGHT TIP = L EFT PHONES OUT 3 2 FROM P/AFL MIX MTX4 MTX3 MTX2 MTX1 2TRK L-R 1 AUX MUTE GRP 3 GRP 2 FROM G RP 1-8 GRP 5 GRP 6 MATRIX MI X GRP 7 GRP 4 GROUPS / AUX 1 -8 FADER +10dB b oost MATRIX 1 -4 LEVEL +6dB boost GL2800 PRE -IN SER T, P RE-[…]

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  GL2800 User Guide 37 User Options The GL2800 has a versatile architecture which should satisfy most applications you may encounter without modificatio n. However, the following internal options provide alternative settin gs for those applications that ma y demand them. Access is required to the int ernal assemblies. For use r convenience, pluggable[…]

• Страница 38

  38 GL2800 User Guide Aux pre/post EQ For convenience, this option is a recessed front panel switch per channel. No internal access is required. The up positio n is post- EQ, pressed is pre-insert and pre-EQ. Note that this setting affects all pre-fade sends from the channel , including auxes and direct output. Direct output source F a c t o r y d e[…]

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  GL2800 User Guide 39 Output bal ance options The aux and matrix outputs are impedance balanced as standard operating at nominal -2dBu and with +20dB u maximum drive. They prov ide similar interference rejection to electronically balanced outpu ts when connected to balanced equipment inp uts. An electronically balanced op tion is available if yo u r[…]

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  40 GL2800 User Guide Cue Sheet 1 of 3 GL2800 Copy and use this page to rec ord your console settings. M LISTEN R L AUX9-10 GRP8 AUX8 GRP7 AUX7 GRP6 AUX6 GRP5 AUX5 GRP4 AUX4 GRP3 AUX3 GRP2 AUX2 AUX1 GRP1 AFL AFL AFL AFL AFL AFL AFL AFL M R L 8 7 6 5 4 3 2 1 10 10 20 30 5 5 0 00 10 10 20 30 5 5 0 00 10 10 20 30 5 5 0 00 0 0 0 5 5 30 20 10 10 0 0 0 5 […]

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  GL2800 User Guide 41 Cue Sheet 2 of 3 GL2800 Copy and use this page to rec ord your console settings. P F LP F LP F LP F LP F LP F L P F L PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 […]

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  42 GL2800 User Guide Cue Sheet 3 of 3 GL2800 Copy and use this page to rec ord your console settings. PFL PFL PFL PFL PFL PFL PFL PFL PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5[…]

• Page 1: Allen & Heath GL2800

  ALLEN & HEATH USER GUIDE Publication AP6095 GL2800[…]

• Page 2: Allen & Heath GL2800

  2 GL2800 User Guide This product complies with the European Electromagnetic Compatibi lity 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 EN55 103 Parts 1 & 2 1996 for use in Environments E1, E2, E3, and E4 to demonstrate compliance with the protection re[…]

• Page 3: Allen & Heath GL2800

  GL2800 User Guide 3 Important Safety Instructio ns WARNINGS — Read the following before proceeding : ATTENTION: RISQUE DE CH OC ELECTRIQUE – NE PA S OUVRIR Read instructions: Read and retain these s afety and operating instructions for future reference. Adhere to all warnings printed here a nd on the console. Follow the operating instructions pri[…]

• Page 4: Allen & Heath GL2800

  4 GL2800 User Guide General Precautions Damage To prevent damage to the controls and cosmetics avoid placing heavy objects on the control surface, scratching the surface with sharp objects, or rough handling a nd vibration. Environment Protect from excessive dirt, dust, heat and vibration when operating and storing. Avoid tobacco ash, smoke, drinks[…]

• Page 5: Allen & Heath GL2800

  GL2800 User Guide 5 Introduction Welcome to the Allen & Heath GL2800 , the latest generation of the popular GL series of dual function live sound mixing consoles. We have tried to keep this user guide brief and to the point. Please read it fully before starting. Included is information on installi ng, connecting and operating the console, panel[…]

• Page 6: Allen & Heath GL2800

  6 GL2800 User Guide PFL PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 10 5 0 5 10 20 30 00 PFL PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 10 5 0 5 10 20 30 00 SIG 0 +6 PK! PFL M4 M3 M2 M1 7-8 5-6 3-4 1-2 L-R M 10 5 0 5 10 20 30 00 SIG 0 +6 PK! PFL M4 M3 M2 M1 7-8 5-6 3-4 1-2 L-R M 10 5 0 5 10 20 30 00 GRP8 AUX8 GRP7 AUX7 GRP6 AUX6 GRP5 AUX5 GR[…]

• Page 7: Allen & Heath GL2800

  GL2800 User Guide 7 The Range: GL2800-24 22 mono mic/line, 2 mic/ ster eo line, 2 dual stereo returns GL2800-32 30 mono mic/line, 2 mic/ ster eo line, 2 dual stereo returns GL2800-40 38 mono mic/line, 2 mic/ ster eo line, 2 dual stereo returns GL2800-48 46 mono mic/line, 2 mic/ ster eo line, 2 dual stereo returns GL2800-56 54 mono mic/line, 2 mic/ […]

• Page 8: Allen & Heath GL2800

  8 GL2800 User Guide Introducing the Allen & Heath GL2800 The GL2800 is an 8-bus dual function analogue mixing console desi gned for professional audio applicatio ns. Whether mixing FOH, monitors or both, recording live or in the studio, installed in a busy venue, out on the road touri ng, or earning its keep in rental stock, the GL2800 provides[…]

• Page 9: Allen & Heath GL2800

  GL2800 User Guide 9 Here are just a few key points we considered when specifying the GL2800 : Affordability We understand your need to work within a realistic budget and know you w a n t t o g e t t h e v e r y b e s t r e t u r n f o r y o u r i n v e s t m e n t . W e k n o w t o o t h a t e v e n t h e l o w e s t budget shows put the same tough[…]

• Page 10: Allen & Heath GL2800

  10 GL2800 User Guide MONO INPUTS x 8 MONO I/P x 6 ST I/P x 2 MASTER SECTION MONO INPUTS x 8 MONO INPU TS x 8 MONO INPUTS x 8 MONO INPUTS x 8 MONO INPU TS x 8 GL 28 00- 840 = 1398 GL 28 00- 848 = 1625 GL 28 00- 856 = 1852 GL 28 00- 832 = 1171 GL 28 00- 824 = 944 650 640 6 3 4 5 168 9 19 62 58 Inst alling the Console The GL2800 has a sp ace saving, c[…]

• Page 11: Allen & Heath GL2800

  GL2800 User Guide 11 Connecting Power Read and understand the Important Safety Instructions printed at the start of this guide, and the warnings printed on the rear of t he co nsole. Check that your l ocal mains supply voltage is the same as that marked on the rear of the RPS11 power unit. Check that the correct mains lead with moulded plug has bee[…]

• Page 12: Allen & Heath GL2800

  12 GL2800 User Guide 1=ground 2=hot + 3=cold — BALANCED Female XLR plug UNBALANC ED link Ring to Sleev e Sleeve=ground Ring=cold — Tip=h ot + UNBALANC ED BALANCED Sleeve=ground Ring=RIGHT Tip=LE FT HEADPHONES TRS jack plug TS jack plug XLR male plug XLR female plug RCA phono jack s 2 3 1 1 3 2 Tip Sleeve Ring Tip Sleeve INPUT OUTPUT 1 2 3 XLR male […]

• Page 13: Allen & Heath GL2800

  GL2800 User Guide 13 Audio Connections The GL2800 uses professional grade 3 pin XLR and 1/4″ TRS (3 pole) jack sock ets. To ensure best performance, we recommend that you use high quality audio cables and connectors, and take time to check for reliab le and accurate cable assembly. It is well known that most audio syste m problems are due to f[…]

• Page 14: Allen & Heath GL2800

  14 GL2800 User Guide The Console Connectors MONO CHANNEL MIC / LINE IN The LI NE (PAD) switch selects either the MIC XLR or the LINE TRS ja ck as the input source. The XLR is normalled through the TRS jack so that it can be used for microphone or line level sign als when nothing is plugged into the jack socket . This gives the channel preamp a mass[…]

• Page 15: Allen & Heath GL2800

  GL2800 User Guide 15 GROUP, L, R, M OUT The main console mix outputs are on electronically balanced XLR. Thes e produce the professional standard +4dBu when the meters read ‘0’, and provid e up to a maximum +26dBu. The L, R and M outputs typically feed the house PA system in live sound mixing, or 2-track and mono recorders in studio mixing . In[…]

• Page 16: Allen & Heath GL2800

  16 GL2800 User Guide The MONO Input Channel +48V Switches +48VDC to the ch annel input XLR for powering microphones or DI boxes that need phantom power. The power is current limited through 6k8 ohm resistors t o pins 2 and 3. WARNING: Do not connect unbal anced sources or cables to inputs with phantom power selected. To avoid loud clicks always mut[…]

• Page 17: Allen & Heath GL2800

  GL2800 User Guide 17 AUX SENDS T h e s e r o t a r y c o n t r o l s a d j u s t h o w m u c h c h a n n e l signal is mixed to each of the aux outp uts. They adjusts fr om fully off to +6dB boost. Unity gain 0d B is marked at 3 o’clock positi on. AUX SENDS 1-8 Mono aux sends with independent control. AUX SENDS 9-10 A dedicated stereo aux send wi[…]

• Page 18: Allen & Heath GL2800

  18 GL2800 User Guide The STEREO Input Channel Each GL2800 stereo channel features a mono microphone pream p as well as a st ereo line input. These sources can be mixed together into the channel or split using the mic break point, so providing a unique flexibility. For example, you could patch the mic stage as an independent preamp for an ambience m[…]

• Page 19: Allen & Heath GL2800

  GL2800 User Guide 19 The STEREO Return Channel Two additional dual stereo return chan nels are provided. Each has two stereo line inputs wh ich can be mixed together or used separately. ST1 and ST3 can be routed directly to LR instead of the return channels. This gives you the flexibility of mixing in four more stereo sources in a small panel space[…]

• Page 20: Allen & Heath GL2800

  20 GL2800 User Guide The GROUP / AUX Masters AUX 1-8 MASTERS Each aux mix has a master level control that adjusts the output level to match external equipment, or trims the monitor, effect or other send without affecting the mix balance. Up to +10dB boost is available above the normal 0dB position. Note that this becomes the group master in monitor[…]

• Page 21: Allen & Heath GL2800

  GL2800 User Guide 21 The MUTE, AUX 9-10 and L-R-M Masters MUTE MASTERS 1-4 Press to mu te all the inpu t channe ls assigned to the mute group. An y combination of masters may be active at any time. The red LED indicate s that the master is active. AUX 9-10 MASTER Cont rols t he mas ter lev el of s tereo Aux 9- 10. Up to +10dB boost is available abo[…]

• Page 22: Allen & Heath GL2800

  22 GL2800 User Guide 12×4 MA TRIX The matrix adds to the powerful multi-tasking capability of the GL2800 . It provides a se t of 4 additional console outputs. It is a ‘mixer within a mixer’ creating its output fro m any combination of the groups, main LR mix and external i nputs. It can be used to provi de duplicate main outputs or to create ne[…]

• Page 23: Allen & Heath GL2800

  GL2800 User Guide 23 2-TRACK REPLA Y and CONSOLE MONIT O R 2TRK REPLAY A stereo source such as a recording playback or walk-in CD can be routed directly to the main LR mix. Adjust its level from fully off to +10dB gain using the rota ry control. You can check the source on the meters and in the headphones before bringing it into the mix by selectin[…]

• Page 24: Allen & Heath GL2800

  24 GL2800 User Guide T ALKBACK and SIGNAL GENERA TOR TALKBACK Individually assignable ta lk back is available to all the main outputs. Plug in a suit able cable or gooseneck microphone. A good quality dynamic or condenser vocal microphone is recommended. Note that +48V phantom power is avail able at the XLR as standard. If you prefer, this can be d[…]

• Page 25: Allen & Heath GL2800

  GL2800 User Guide 25 GL2800 Applications and Operating Tip s The following is a collection of brief descriptions , application notes, hints and tips to help the operator underst and some of the technical terms referred to, and to get the most out of the uniq uely capable GL2800 live sound mixing console. The y are written as a concise reference to […]

• Page 26: Allen & Heath GL2800

  26 GL2800 User Guide Using the Oscillator / Noise Gene rator T h e GL2800 includes a useful sig nal generator able to pr oduce a pure 1kHz sin e wave tone, or a pink noise test source. This is invaluable in testing the system components and setting up correct gain structure. The generator can be routed independently to the various console outputs. […]

• Page 27: Allen & Heath GL2800

  GL2800 User Guide 27 Using PFL / AFL Allen & Heath are renowned for b ringing you the most comprehensive engineer’s monitoring system i n consoles at this price point. We recognise the importance of correct gain structure and signal handling. The GL2800 includes LED meters for every input channel and main output, as well as a pair of high res[…]

• Page 28: Allen & Heath GL2800

  28 GL2800 User Guide Polarity R e f e r s t o t h e p o s i t i v e ( + ) a n d n e g a t i v e ( — ) w i r e s o f a loudspeaker or balanced audio connection. The console input channels include POLARITY switches which reverse the + and – input connections. Some applications include correcting for reverse wired cables, correcting for microphone p[…]

• Page 29: Allen & Heath GL2800

  GL2800 User Guide 29 Dual Functionality Now an industry standard, Allen & He ath pioneered thi s feature with the introduction of the first GL consoles in the ‘90s. In the past it wa s necessary to stock two different types of li ve sound console, one for mixing FO H (front-of-house), the other designed for mixing o n-stage monitors. With the[…]

• Page 30: Allen & Heath GL2800

  30 GL2800 User Guide Applications for the Matrix The matrix is a ‘mixer within a mixer’, a versatile toolbox of output s you can use t o satisfy a host of applications. Each of the 4 output s is mixed from any combination of the groups, L, R, M and an external input as dialled up on the 12 source rotaries (hence a ‘12×4’ matrix). Its master[…]

• Page 31: Allen & Heath GL2800

  GL2800 User Guide 31 Create IEM Mixes with Ambience I n M o n i t o r mode the matrix continues to be fed with the 8 groups, L, R and M mixes. You can use these to create additional, ind ependent monitor mixes. Together with the auxes these give you as many as 14 mixes. Create mono or stereo in-ear monitor feeds u sing single or paired matrices, fo[…]

• Page 32: Allen & Heath GL2800

  32 GL2800 User Guide Mix and Aux-Fed Subs Driving the PA system sub bass speakers with their own mix has t wo main advantages. First, the mi x is much cleaner because only sources that generate the low frequencies, for example kick drum, bass guitar, keyboards and sound effects are sent to the subs. Low fr equency bleed from these sources into open[…]

• Page 33: Allen & Heath GL2800

  GL2800 User Guide 33 Using the Stereo Channe ls The two full feature stereo channels and the two dual stereo retu rns p resent a unique flexibility. The channels each include a patch able mic input and a stereo line input. The returns each include two stereo inputs which c an be mixed together or used separately. The mic preamp has a TRS jack MIC O[…]

• Page 34: Allen & Heath GL2800

  34 GL2800 User Guide S pecifications Performanc e Maximum input level Mic +34dBu (inc pad) CH Line +34dBu Other Line +20dBu Maximum output level XLR +26dBu Jack +20dBu Internal headroom Channels +20dB M i x + 2 2 d B Meters 3 colour, quasi peak response Sensitivity 0VU = +4dBu at XLR output Master meters 12 segment -30 to +16dB Channel meters 4 seg[…]

• Page 35: Allen & Heath GL2800

  GL2800 User Guide 35 Connections Mono channel XLR balanced pin 2 hot Sensitivity -60 t o +14dBu TRS balanced, tip hot Sensitivity -40 to +14dBu Total gain range 74dB P a d o u t ( M I C ) 2 k o h m Pad in (MIC or LINE) >10k ohm, -20dB attenuation Max input level +34dBu XLR phantom power +48V, on/off Stereo channel Mic in Same as mono channel Ste[…]

• Page 36: Allen & Heath GL2800

  36 GL2800 User Guide System Block Diagram IMPE DANCE BALANCE D R L MONITOR OUT R L MONITOR MONITO R RING = RIGHT TIP = L EFT PHONES OUT 3 2 FROM P/AFL MIX MTX4 MTX3 MTX2 MTX1 2TRK L-R 1 AUX MUTE GRP 3 GRP 2 FROM G RP 1-8 GRP 5 GRP 6 MATRIX MI X GRP 7 GRP 4 GROUPS / AUX 1 -8 FADER +10dB b oost MATRIX 1 -4 LEVEL +6dB boost GL2800 PRE -IN SER T, P RE-[…]

• Page 37: Allen & Heath GL2800

  GL2800 User Guide 37 User Options The GL2800 has a versatile architecture which should satisfy most applications you may encounter without modificatio n. However, the following internal options provide alternative settin gs for those applications that ma y demand them. Access is required to the int ernal assemblies. For use r convenience, pluggable[…]

• Page 38: Allen & Heath GL2800

  38 GL2800 User Guide Aux pre/post EQ For convenience, this option is a recessed front panel switch per channel. No internal access is required. The up positio n is post- EQ, pressed is pre-insert and pre-EQ. Note that this setting affects all pre-fade sends from the channel , including auxes and direct output. Direct output source F a c t o r y d e[…]

• Page 39: Allen & Heath GL2800

  GL2800 User Guide 39 Output bal ance options The aux and matrix outputs are impedance balanced as standard operating at nominal -2dBu and with +20dB u maximum drive. They prov ide similar interference rejection to electronically balanced outpu ts when connected to balanced equipment inp uts. An electronically balanced op tion is available if yo u r[…]

• Page 40: Allen & Heath GL2800

  40 GL2800 User Guide Cue Sheet 1 of 3 GL2800 Copy and use this page to rec ord your console settings. M LISTEN R L AUX9-10 GRP8 AUX8 GRP7 AUX7 GRP6 AUX6 GRP5 AUX5 GRP4 AUX4 GRP3 AUX3 GRP2 AUX2 AUX1 GRP1 AFL AFL AFL AFL AFL AFL AFL AFL M R L 8 7 6 5 4 3 2 1 10 10 20 30 5 5 0 00 10 10 20 30 5 5 0 00 10 10 20 30 5 5 0 00 0 0 0 5 5 30 20 10 10 0 0 0 5 […]

• Page 41: Allen & Heath GL2800

  GL2800 User Guide 41 Cue Sheet 2 of 3 GL2800 Copy and use this page to rec ord your console settings. P F LP F LP F LP F LP F LP F L P F L PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 […]

• Page 42: Allen & Heath GL2800

  42 GL2800 User Guide Cue Sheet 3 of 3 GL2800 Copy and use this page to rec ord your console settings. PFL PFL PFL PFL PFL PFL PFL PFL PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5[…]

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• Allen & Heath GL2800 — page 1

  ALLEN & HEATH USER GUIDE Publication AP6095 GL2800 …

• Allen & Heath GL2800 — page 2

  2 GL2800 User Guide This product complies with the European Electromagnetic Compatibi lity 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 EN55 103 Parts 1 & 2 1996 for use in Environments E1, E2, E3, and E4 to demonstrate compliance with the protection re …

• Allen & Heath GL2800 — page 3

  GL2800 User Guide 3 Important Safety Instructio ns WARNINGS — Read the following before proceeding : ATTENTION: RISQUE DE CH OC ELECTRIQUE – NE PA S OUVRIR Read instructions: Read and retain these s afety and operating instructions for future reference. Adhere to all warnings printed here a nd on the console. Follow the operating instructions pri …

• Allen & Heath GL2800 — page 4

  4 GL2800 User Guide General Precautions Damage To prevent damage to the controls and cosmetics avoid placing heavy objects on the control surface, scratching the surface with sharp objects, or rough handling a nd vibration. Environment Protect from excessive dirt, dust, heat and vibration when operating and storing. Avoid tobacco ash, smoke, drinks …

• Allen & Heath GL2800 — page 5

  GL2800 User Guide 5 Introduction Welcome to the Allen & Heath GL2800 , the latest generation of the popular GL series of dual function live sound mixing consoles. We have tried to keep this user guide brief and to the point. Please read it fully before starting. Included is information on installi ng, connecting and operating the console, panel …

• Allen & Heath GL2800 — page 6

  6 GL2800 User Guide PFL PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 10 5 0 5 10 20 30 00 PFL PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 10 5 0 5 10 20 30 00 SIG 0 +6 PK! PFL M4 M3 M2 M1 7-8 5-6 3-4 1-2 L-R M 10 5 0 5 10 20 30 00 SIG 0 +6 PK! PFL M4 M3 M2 M1 7-8 5-6 3-4 1-2 L-R M 10 5 0 5 10 20 30 00 GRP8 AUX8 GRP7 AUX7 GRP6 AUX6 GRP5 AUX5 GR …

• Allen & Heath GL2800 — page 7

  GL2800 User Guide 7 The Range: GL2800-24 22 mono mic/line, 2 mic/ ster eo line, 2 dual stereo returns GL2800-32 30 mono mic/line, 2 mic/ ster eo line, 2 dual stereo returns GL2800-40 38 mono mic/line, 2 mic/ ster eo line, 2 dual stereo returns GL2800-48 46 mono mic/line, 2 mic/ ster eo line, 2 dual stereo returns GL2800-56 54 mono mic/line, 2 mic/ …

• Allen & Heath GL2800 — page 8

  8 GL2800 User Guide Introducing the Allen & Heath GL2800 The GL2800 is an 8-bus dual function analogue mixing console desi gned for professional audio applicatio ns. Whether mixing FOH, monitors or both, recording live or in the studio, installed in a busy venue, out on the road touri ng, or earning its keep in rental stock, the GL2800 provides …

• Allen & Heath GL2800 — page 9

  GL2800 User Guide 9 Here are just a few key points we considered when specifying the GL2800 : Affordability We understand your need to work within a realistic budget and know you w a n t t o g e t t h e v e r y b e s t r e t u r n f o r y o u r i n v e s t m e n t . W e k n o w t o o t h a t e v e n t h e l o w e s t budget shows put the same tough …

• Allen & Heath GL2800 — page 10

  10 GL2800 User Guide MONO INPUTS x 8 MONO I/P x 6 ST I/P x 2 MASTER SECTION MONO INPUTS x 8 MONO INPU TS x 8 MONO INPUTS x 8 MONO INPUTS x 8 MONO INPU TS x 8 GL 28 00- 840 = 1398 GL 28 00- 848 = 1625 GL 28 00- 856 = 1852 GL 28 00- 832 = 1171 GL 28 00- 824 = 944 650 640 6 3 4 5 168 9 19 62 58 Inst alling the Console The GL2800 has a sp ace saving, c …

• Allen & Heath GL2800 — page 11

  GL2800 User Guide 11 Connecting Power Read and understand the Important Safety Instructions printed at the start of this guide, and the warnings printed on the rear of t he co nsole. Check that your l ocal mains supply voltage is the same as that marked on the rear of the RPS11 power unit. Check that the correct mains lead with moulded plug has bee …

• Allen & Heath GL2800 — page 12

  12 GL2800 User Guide 1=ground 2=hot + 3=cold — BALANCED Female XLR plug UNBALANC ED link Ring to Sleev e Sleeve=ground Ring=cold — Tip=h ot + UNBALANC ED BALANCED Sleeve=ground Ring=RIGHT Tip=LE FT HEADPHONES TRS jack plug TS jack plug XLR male plug XLR female plug RCA phono jack s 2 3 1 1 3 2 Tip Sleeve Ring Tip Sleeve INPUT OUTPUT 1 2 3 XLR male …

• Allen & Heath GL2800 — page 13

  GL2800 User Guide 13 Audio Connections The GL2800 uses professional grade 3 pin XLR and 1/4″ TRS (3 pole) jack sock ets. To ensure best performance, we recommend that you use high quality audio cables and connectors, and take time to check for reliab le and accurate cable assembly. It is well known that most audio syste m problems are due to f …

• Allen & Heath GL2800 — page 14

  14 GL2800 User Guide The Console Connectors MONO CHANNEL MIC / LINE IN The LI NE (PAD) switch selects either the MIC XLR or the LINE TRS ja ck as the input source. The XLR is normalled through the TRS jack so that it can be used for microphone or line level sign als when nothing is plugged into the jack socket . This gives the channel preamp a mass …

• Allen & Heath GL2800 — page 15

  GL2800 User Guide 15 GROUP, L, R, M OUT The main console mix outputs are on electronically balanced XLR. Thes e produce the professional standard +4dBu when the meters read ‘0’, and provid e up to a maximum +26dBu. The L, R and M outputs typically feed the house PA system in live sound mixing, or 2-track and mono recorders in studio mixing . In …

• Allen & Heath GL2800 — page 16

  16 GL2800 User Guide The MONO Input Channel +48V Switches +48VDC to the ch annel input XLR for powering microphones or DI boxes that need phantom power. The power is current limited through 6k8 ohm resistors t o pins 2 and 3. WARNING: Do not connect unbal anced sources or cables to inputs with phantom power selected. To avoid loud clicks always mut …

• Allen & Heath GL2800 — page 17

  GL2800 User Guide 17 AUX SENDS T h e s e r o t a r y c o n t r o l s a d j u s t h o w m u c h c h a n n e l signal is mixed to each of the aux outp uts. They adjusts fr om fully off to +6dB boost. Unity gain 0d B is marked at 3 o’clock positi on. AUX SENDS 1-8 Mono aux sends with independent control. AUX SENDS 9-10 A dedicated stereo aux send wi …

• Allen & Heath GL2800 — page 18

  18 GL2800 User Guide The STEREO Input Channel Each GL2800 stereo channel features a mono microphone pream p as well as a st ereo line input. These sources can be mixed together into the channel or split using the mic break point, so providing a unique flexibility. For example, you could patch the mic stage as an independent preamp for an ambience m …

• Allen & Heath GL2800 — page 19

  GL2800 User Guide 19 The STEREO Return Channel Two additional dual stereo return chan nels are provided. Each has two stereo line inputs wh ich can be mixed together or used separately. ST1 and ST3 can be routed directly to LR instead of the return channels. This gives you the flexibility of mixing in four more stereo sources in a small panel space …

• Allen & Heath GL2800 — page 20

  20 GL2800 User Guide The GROUP / AUX Masters AUX 1-8 MASTERS Each aux mix has a master level control that adjusts the output level to match external equipment, or trims the monitor, effect or other send without affecting the mix balance. Up to +10dB boost is available above the normal 0dB position. Note that this becomes the group master in monitor …

• Allen & Heath GL2800 — page 21

  GL2800 User Guide 21 The MUTE, AUX 9-10 and L-R-M Masters MUTE MASTERS 1-4 Press to mu te all the inpu t channe ls assigned to the mute group. An y combination of masters may be active at any time. The red LED indicate s that the master is active. AUX 9-10 MASTER Cont rols t he mas ter lev el of s tereo Aux 9- 10. Up to +10dB boost is available abo …

• Allen & Heath GL2800 — page 22

  22 GL2800 User Guide 12×4 MA TRIX The matrix adds to the powerful multi-tasking capability of the GL2800 . It provides a se t of 4 additional console outputs. It is a ‘mixer within a mixer’ creating its output fro m any combination of the groups, main LR mix and external i nputs. It can be used to provi de duplicate main outputs or to create ne …

• Allen & Heath GL2800 — page 23

  GL2800 User Guide 23 2-TRACK REPLA Y and CONSOLE MONIT O R 2TRK REPLAY A stereo source such as a recording playback or walk-in CD can be routed directly to the main LR mix. Adjust its level from fully off to +10dB gain using the rota ry control. You can check the source on the meters and in the headphones before bringing it into the mix by selectin …

• Allen & Heath GL2800 — page 24

  24 GL2800 User Guide T ALKBACK and SIGNAL GENERA TOR TALKBACK Individually assignable ta lk back is available to all the main outputs. Plug in a suit able cable or gooseneck microphone. A good quality dynamic or condenser vocal microphone is recommended. Note that +48V phantom power is avail able at the XLR as standard. If you prefer, this can be d …

• Allen & Heath GL2800 — page 25

  GL2800 User Guide 25 GL2800 Applications and Operating Tip s The following is a collection of brief descriptions , application notes, hints and tips to help the operator underst and some of the technical terms referred to, and to get the most out of the uniq uely capable GL2800 live sound mixing console. The y are written as a concise reference to …

• Allen & Heath GL2800 — page 26

  26 GL2800 User Guide Using the Oscillator / Noise Gene rator T h e GL2800 includes a useful sig nal generator able to pr oduce a pure 1kHz sin e wave tone, or a pink noise test source. This is invaluable in testing the system components and setting up correct gain structure. The generator can be routed independently to the various console outputs. …

• Allen & Heath GL2800 — page 27

  GL2800 User Guide 27 Using PFL / AFL Allen & Heath are renowned for b ringing you the most comprehensive engineer’s monitoring system i n consoles at this price point. We recognise the importance of correct gain structure and signal handling. The GL2800 includes LED meters for every input channel and main output, as well as a pair of high res …

• Allen & Heath GL2800 — page 28

  28 GL2800 User Guide Polarity R e f e r s t o t h e p o s i t i v e ( + ) a n d n e g a t i v e ( — ) w i r e s o f a loudspeaker or balanced audio connection. The console input channels include POLARITY switches which reverse the + and – input connections. Some applications include correcting for reverse wired cables, correcting for microphone p …

• Allen & Heath GL2800 — page 29

  GL2800 User Guide 29 Dual Functionality Now an industry standard, Allen & He ath pioneered thi s feature with the introduction of the first GL consoles in the ‘90s. In the past it wa s necessary to stock two different types of li ve sound console, one for mixing FO H (front-of-house), the other designed for mixing o n-stage monitors. With the …

• Allen & Heath GL2800 — page 30

  30 GL2800 User Guide Applications for the Matrix The matrix is a ‘mixer within a mixer’, a versatile toolbox of output s you can use t o satisfy a host of applications. Each of the 4 output s is mixed from any combination of the groups, L, R, M and an external input as dialled up on the 12 source rotaries (hence a ‘12×4’ matrix). Its master …

• Allen & Heath GL2800 — page 31

  GL2800 User Guide 31 Create IEM Mixes with Ambience I n M o n i t o r mode the matrix continues to be fed with the 8 groups, L, R and M mixes. You can use these to create additional, ind ependent monitor mixes. Together with the auxes these give you as many as 14 mixes. Create mono or stereo in-ear monitor feeds u sing single or paired matrices, fo …

• Allen & Heath GL2800 — page 32

  32 GL2800 User Guide Mix and Aux-Fed Subs Driving the PA system sub bass speakers with their own mix has t wo main advantages. First, the mi x is much cleaner because only sources that generate the low frequencies, for example kick drum, bass guitar, keyboards and sound effects are sent to the subs. Low fr equency bleed from these sources into open …

• Allen & Heath GL2800 — page 33

  GL2800 User Guide 33 Using the Stereo Channe ls The two full feature stereo channels and the two dual stereo retu rns p resent a unique flexibility. The channels each include a patch able mic input and a stereo line input. The returns each include two stereo inputs which c an be mixed together or used separately. The mic preamp has a TRS jack MIC O …

• Allen & Heath GL2800 — page 34

  34 GL2800 User Guide S pecifications Performanc e Maximum input level Mic +34dBu (inc pad) CH Line +34dBu Other Line +20dBu Maximum output level XLR +26dBu Jack +20dBu Internal headroom Channels +20dB M i x + 2 2 d B Meters 3 colour, quasi peak response Sensitivity 0VU = +4dBu at XLR output Master meters 12 segment -30 to +16dB Channel meters 4 seg …

• Allen & Heath GL2800 — page 35

  GL2800 User Guide 35 Connections Mono channel XLR balanced pin 2 hot Sensitivity -60 t o +14dBu TRS balanced, tip hot Sensitivity -40 to +14dBu Total gain range 74dB P a d o u t ( M I C ) 2 k o h m Pad in (MIC or LINE) >10k ohm, -20dB attenuation Max input level +34dBu XLR phantom power +48V, on/off Stereo channel Mic in Same as mono channel Ste …

• Allen & Heath GL2800 — page 36

  36 GL2800 User Guide System Block Diagram IMPE DANCE BALANCE D R L MONITOR OUT R L MONITOR MONITO R RING = RIGHT TIP = L EFT PHONES OUT 3 2 FROM P/AFL MIX MTX4 MTX3 MTX2 MTX1 2TRK L-R 1 AUX MUTE GRP 3 GRP 2 FROM G RP 1-8 GRP 5 GRP 6 MATRIX MI X GRP 7 GRP 4 GROUPS / AUX 1 -8 FADER +10dB b oost MATRIX 1 -4 LEVEL +6dB boost GL2800 PRE -IN SER T, P RE- …

• Allen & Heath GL2800 — page 37

  GL2800 User Guide 37 User Options The GL2800 has a versatile architecture which should satisfy most applications you may encounter without modificatio n. However, the following internal options provide alternative settin gs for those applications that ma y demand them. Access is required to the int ernal assemblies. For use r convenience, pluggable …

• Allen & Heath GL2800 — page 38

  38 GL2800 User Guide Aux pre/post EQ For convenience, this option is a recessed front panel switch per channel. No internal access is required. The up positio n is post- EQ, pressed is pre-insert and pre-EQ. Note that this setting affects all pre-fade sends from the channel , including auxes and direct output. Direct output source F a c t o r y d e …

• Allen & Heath GL2800 — page 39

  GL2800 User Guide 39 Output bal ance options The aux and matrix outputs are impedance balanced as standard operating at nominal -2dBu and with +20dB u maximum drive. They prov ide similar interference rejection to electronically balanced outpu ts when connected to balanced equipment inp uts. An electronically balanced op tion is available if yo u r …

• Allen & Heath GL2800 — page 40

  40 GL2800 User Guide Cue Sheet 1 of 3 GL2800 Copy and use this page to rec ord your console settings. M LISTEN R L AUX9-10 GRP8 AUX8 GRP7 AUX7 GRP6 AUX6 GRP5 AUX5 GRP4 AUX4 GRP3 AUX3 GRP2 AUX2 AUX1 GRP1 AFL AFL AFL AFL AFL AFL AFL AFL M R L 8 7 6 5 4 3 2 1 10 10 20 30 5 5 0 00 10 10 20 30 5 5 0 00 10 10 20 30 5 5 0 00 0 0 0 5 5 30 20 10 10 0 0 0 5 …

• Allen & Heath GL2800 — page 41

  GL2800 User Guide 41 Cue Sheet 2 of 3 GL2800 Copy and use this page to rec ord your console settings. P F LP F LP F LP F LP F LP F L P F L PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 …

• Allen & Heath GL2800 — page 42

  42 GL2800 User Guide Cue Sheet 3 of 3 GL2800 Copy and use this page to rec ord your console settings. PFL PFL PFL PFL PFL PFL PFL PFL PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5-6 7-8 M1 M2 M3 M4 PK! +6 0 SIG M L-R 1-2 3-4 5 …

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