ALLEN & HEATH GL3800 User Manual

ALLEN & HEATH GL3800 User Manual

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ALLEN&HEATH
GL3800

USER GUIDE

Publication AP6157

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Summary of Contents for ALLEN & HEATH GL3800

  • Page 1: User Guide

    ALLEN&HEATH GL3800 USER GUIDE Publication AP6157...
  • Page 2: Warranty

    Allen & Heath could void the compliance of the console and therefore the user’s authority to operate it. GL3800 User Guide AP6157 Issue 1 Copyright © 2005 Allen & Heath Limited. All rights reserved Manufactured in the United Kingdom by 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. GL3800 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. GL3800 User Guide...
  • Page 5: Table Of Contents

    Introduction Welcome to the Allen & Heath GL3800, 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

    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 LISTEN WEDGE GL3800 User Guide...
  • Page 7 INSERT LINE IN LINE IN LINE IN 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 (option) SYS-LINK V2 INPUT GL3800 User Guide...
  • Page 8: Introducing The Gl3800

    Introducing the Allen & Heath GL3800 The GL3800 is a large format 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 GL3800 provides the perfect solution.
  • Page 9 Our goal has been to provide a truly professional range of consoles to satisfy your mixing needs, whatever the application. The GL3800 is not only available in 4 different frame sizes, but also 4 different mono/stereo channel combinations for each size…...
  • Page 10: Installing The Console

    Installing the Console The GL3800 has a robust, all metal chassis design. It is convenient both for fixed installation and flight casing. The control surface has a 10 degree slope for optimum visibility during operation. The rear connector panel is recessed and angled for ease of plugging and unplugging the connectors.
  • Page 11: Connecting Power

    One will automatically take over should the other be switched off or stop working. The recommended backup supply for the GL3800 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 GL3800 User Guide...
  • Page 13: Audio Connections

    Audio Connections The GL3800 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. GL3800 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 GL3800 Sys-Link V2 (version 2) input/output option kit is available from Allen & Heath. Refer to OPTIONS later in this guide. GL3800 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. GL3800 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. GL3800 User Guide...
  • Page 18: Stereo Input Channel

    The STEREO Input Channel (if fitted) +48V Each GL3800 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. GL3800 User Guide...
  • Page 20: Group/Aux Masters

    A 100mm dual rail 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. GL3800 User Guide...
  • Page 21: Mute, Aux 9-10 And L-R-M Masters

    Together with the group/aux REV function, the GL3800 can be configured as a compact yet fully featured monitor console. GL3800 User Guide...
  • Page 22: 12X4 Matrix

    12x4 MATRIX The matrix adds to the powerful multi-tasking capability of the GL3800. 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 GL3800 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

    PFL or AFL signal. The red indicator lights when PAFL is active. The meters are LED illuminated for long life. A built-in red PEAK indicator lights when the signal is within 5dB of clipping. GL3800 User Guide...
  • Page 25: Gain Structure

    GL3800 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 GL3800 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 GL3800 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! GL3800 User Guide...
  • Page 29: Dual Functionality

    The GL3800 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. GL3800 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 GL3800 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 GL3800 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. Depending on format, The GL3800 provides between 4 and 12 stereo inputs in a compact format. Together with the mics the stereos provide for a host of space saving applications: Standard Mono Microphone Channels Mono mic input through the stereo channel with 4band EQ, auxes and full routing.
  • Page 34: Specifications

    Peak/dip +/-15dB, 250Hz, Q=1.8 Shelving +/-15dB, 80Hz Power supply External RPS11 IEC input External Input for optional RPS11 backup supply Mechanical Width 1026mm (40.4”) 1281mm (50.4”) 1536mm (60.4”) 1791mm(70.5”) Depth 691mm (27.2”) Height 275mm (10.8”) Weight 33kg(72.6lbs) 42kg(92.4lbs) 51kg(112.2lbs) 60kg(132lbs) GL3800 User Guide...
  • Page 35 Talkback/osc out TRS impedance balanced <75 ohm, +20dBu max Lamp 4-pin XLR max 12V 5W lamp GL3800 Series Part Numbers 24 channel, 2 dual stereo return, 8 group console GL3800-824m/v 32 channel, 2 dual stereo return, 8 group console GL3800-832m/v...
  • 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 GL3800 User Guide...
  • Page 37: User Options

    User Options The GL3800 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. GL3800 User Guide...
  • Page 39 37way D connectors for linking to other Allen & Heath consoles already fitted with Sys-Link V2. The GL3800 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 MODE P/AFL 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 GL3800 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 GL3800 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 GL3800 User Guide...
  • Page 43 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 GL3800 User Guide...
  • Page 44 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 GL3800 User Guide...

Table of Contents