ALLEN & HEATH GL 2000 Manual de usuario

LIMITED ONE YEAR WARRANTY

ThisproducthasbeenmanufacturedintheUKbyALLEN&HEATHandiswarranted

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 the high level of performance and reliability for which this equipment has

been designed and manufactured please read this User Guide before use.

In the event of a failure notify and return the defective unit to ALLEN & HEATH 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 the 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 made by ALLEN & HEATH or its

authorised agent.

4. The defective unit is to be returned carriage prepaid to ALLEN & HEATH or its authorised agent

with proof of purchase.

5. Units to be returned should be packed to avoid transit damage.

These terms of warranty apply to UK sales. In other territories the terms may vary according to legal

requirements.

U.K. FACTORY:

ALLEN & HEATH.

Kernick Industrial Estate,

Penryn.

Cornwall. TR10 9LU.

A DIVISION OF HARMAN INTERNATIONAL INDUSTRIES Ltd.

ALLEN & HEATH AGENT:

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.

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PRECAUTIONS.

lAC POWER: Check the power unit for correct AC mains voltage setting before switching on. Allow

adequate space around the unit for ventilation.

lCONNECTIONS: Use audio connectors and cables only for their intended purpose. Do not connect any

source of AC or DC power to the console audio connectors. Do not connect the output

of power amplifiers directly to the console.

lCLEANING: Avoid the use of chemicals, abrasives and solvents. The control panel is best cleaned

with a soft brush and lint-free cloth. To remove stubborn marks (such as chinagraph

pencil) isopropyl alcohol may be used.

lLUBRICATION: The faders, switches and potentiometers are lubricated for life. The use of electrical

lubricants on these parts is not recommended.

lDIRT, DUST, SMOKE and MOISTURE: Prevent damage to the moving parts, such as faders and

potentiometers, and cosmetics by avoiding drinks spillage, tobacco ash and smoke,

and exposure to rain and condensation. Protect from excessive dirt, dust, heat and

vibration.

INTRODUCTION

The GL2000 continues ALLEN & HEATH’s commitment to provide high quality audio mixing consoles

engineered to meet the exacting requirements of today’s audio business. It brings you the latest in high performance

technology and offers the reassurance of over two decades of console manufacture and customer support.

This user guide presents a quick reference to the function, application and installation of the GL2000. For further

information on the basic principles of audio system engineering please refer to one of the specialist publications

available from bookshops and audio equipment dealers.

Whilst we believe the information in this guide to be reliable we do not assume responsibility for any inaccuracies.

We also reserve the right to make changes in the interest of further product development.

SERVICE AND TECHNICAL SUPPORT

Under normal conditions the GL2000 does not require user maintenance or internal calibration. Any service work

required should be carried out by qualified service personnel only.

We are able to offer further product support through our worldwide network of approved dealers and service agents.

To help us provide the most efficient service please keep a record of the console serial number, and date and place

of purchase to be quoted in any communication regarding this product.

Mainselectricityisdangerousandcankill.Mainsvoltageispresentwithin

theGL2000.Donotcarryoutanyworkwithintheconsolewhileitispowered.

The console mains voltage setting is indicated on the rear of the console.

Check your mains wiring and earthing before switching on.

DO NOT REMOVE THE MAINS EARTH CONNECTION!

Theconsolechassisisconnectedtomains earth to ensure your safety.

Audio 0V connects to the console chassis internally. Should problems be

encountered with ground loops, operate the audio ground lift switches on

connected equipment or disconnect the cable screens at one end. Refer to

the section on 'EARTHING' in this User Guide.

SAFETY WARNING !

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AC mains supply = 100 to 110 V.AC 100 T 1.6A 20mm fuse

AC mains supply = 110 to 125 V.AC 120 T 1.6A 20mm fuse

AC mains supply = 210 to 230 V.AC 230 T 630mA 20mm fuse

AC mains supply = 235 to 260 V.AC 240 T 630mA 20mm fuse

CONNECTING AC MAINS TO THE CONSOLE

Refer to the SAFETY WARNING on the first page of this User Guide.

Mains input to the GL2000 is via a standard 3 pin IEC mains input connector. A mains cable with moulded mains

plug suitable for the local supply is supplied.

Checkthatthevoltageindicatedinthefuseholder window is the same

as the mains supply in your area.

For best performance it is important that the earth system is solid, clean and noise-free. To prevent mains born

and external interference pickup from lighting equipment, motors and other mains powered equipment it is

recommended that a separate 'clean' mains distribution outlet is used for the audio system.

All signal cables should have their screens connected to earth at the connector. If earth (ground) loop problems

result in audible hum or buzz then disconnect the cable screen connection at one end, usually the destination end.

This may be done within the cable plug or by operating the 'ground lift' switch if available on the connected

equipment. Many DI boxes and power amplifiers include this facility.

EARTHING THE AUDIO SYSTEM

The console chassis is connected to mains earth via the power cable. Audio 0V is connected internally to the chassis

and therefore mains earth. In this way all signal returns and connector shields are connected to mains earth at the

console.

To ensure operator safety do not remove the earth connection from

the AC mains plug.

To avoid the risk of fire replace the fuse only with the correct type and

value as specified on the unit.

FIt is normal for the power unit to dissipate heat. Ensure adequate

ventilation around the unit. Do not cover the unit or position it on soft

furnishings during operation.

Always switch the unit off before connecting or disconnecting the

console power cable.

FThis unit contains no user serviceable parts. Do not remove the

cover. Refer servicing to qualified service personnel only.

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PLUGGING UP THE CABLES

Where possible use balanced connections to prevent noise and interference pickup especially on long microphone

cable runs. Avoid running audio cables next to AC mains, computer or lighting cables, near thyristor dimmer units

or power supplies etc. The use of low impedance sources such as good quality microphones of 200 ohms or less

significantly reduces interference pickup. Many problems can be avoided by taking time to check that all cables

are correctly wired (in-phase) with professional quality cable and carefully soldered connections. The following

wiring convention is used:

ADJUSTING THE LEVELS

For best performance it is important that the connected source signals are matched to the "normal operating level"

of the console. Similarly the console outputs should be correctly matched to the operating levels of the connected

amplifiers and destination equipment. If too high the signal peaks will be clipped resulting in a harsh distorted

sound, and if too low the signal-to-noise ratio is reduced resulting in excessive background hiss.

For best results operate the console with the meters averaging '0' or just below and allowing the loudest passages

and occassional peaks into the 'yellow'. Reduce the gain if the peak indicators flash (red). The GL2000 produces

a standard XLR output level of +4dBu for a meter reading of 0VU. It is advisable to adjust the power amplifier

input gain or fit an attenuator pad if normal console operation results in an output level too high for the connected

amplifier. Normal operation should result in fader levels around the '0' mark.

The GL2000 has an advanced PFL (pre-fade listen) / AFL (after-fader listen) and channel metering system to let

you listen to and check the level of signals at different points in the signal path without affecting the main outputs.

Use the channel PFLswitches to set up the input GAINcontrols to read an average '0' (yellow LED). Signal activity

isalwaysshownonthechannelmetersregardless of fader position. The green 'SIG'LED lights at -20dBu to indicate

signal presence, the green '0' LED indicates normal level, and the red 'PEAK' LED warns of potential overload 5dB

before clipping.

Deselect input channel +48V when inputs are connected to

non-phantom powered, mic, line or unbalanced sources.

XLR pin 1 = 0V earth shield 1/4" jack tip = + / hot / signal / left / send

pin 2 = + / hot (in phase signal) ring = - / cold / 0V / right / return

pin 3 = - / cold (out of phase signal) sleeve = 0V earth shield

To connect an unbalanced source to a balanced console input, link the cold input (XLR pin 3 or jack ring) to 0V

earth (pin 1 or jack sleeve) at the console. To connect a balanced console output to an unbalanced destination link

the cold output to 0V earth at the console.

BALANCED

UNBALANCED

OUTPUT

INPUT

3-PIN XLR FEMALE PLUG

3-PIN XLR MALE PLUG

3-PIN XLR FEMALE PLUG

3-PIN XLR MALE PLUG

TWIN SCREENED CABLE

¼" 3-POLE (STEREO) JACK PLUG

Tip

Sleeve

Ring

Tip

Sleeve

Tip

SINGLE SCREENED CABLE

Tip

SINGLE SCREENED CABLE

Sleeve

Ring

Tip

¼" 3-POLE (STEREO) JACK PLUG

RCA PHONO PLUG

Ring

Sleeve

Ring

Sleeve

OUTPUT

INPUT

CONSOLE

CONNECTIONS

CONSOLE

CONNECTIONS

CONSOLE

CONNECTIONS

link

Screen not connected at destination

¼" 2-POLE (MONO) JACK PLUG

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The ALLEN & HEATHGL2000 represents a breakthrough in price versus performance and functionality. It offers

the professional user a new level of versatility to quickly adapt to the exacting demands of live sound engineering

today. The GL2000 is developed from the very successful GL3 console which first introduced the innovative 'mode

switching' that quickly converts the console from Front-of-House to On-stage Monitor operation. Apart from

continuing the development of this unique feature the GL2000 packs in more features and performance at the same

price point of the mixer it supercedes. We now offer you 4 subgroups, 6 independent aux sends, stereo mic/line

channels and lots more ...

FEATURES

üEasy to use intuitive layout.

ü12, 16, 24 and 32 channel models with 20, 24 32 and 40 inputs to the mix respectively.

üInternal power supply unit.

üSYS-LINK buss expander option.

ü2 stereo mic/line channels as standard.

üL R outputs on balanced XLR with inserts.

üMono sum output on jack output.

ü4 groups with outputs available on balanced XLR with inserts.

üSubgrouping to L R with pan control and switch for each group.

ü6 independent aux sends on jack outputs.

ü2 stereo returns on faders with Eq and routing.

üMode switching to convert console to on-stage monitor with 6 sends on balanced XLR with inserts.

üMode switching converts mono output to monitor engineers 'listen' wedge.

ü2-track record and replay with level controls.

üTalkback to all aux sends selected in pairs.

üAdvanced channel features including +48V, phase switch, lo-cut filter, meter and insert.

ü4 band 2 sweep EQ with wide ranging frequency sweep and +/-15dB boost/cut.

üPre-post aux switching with additional internal link options.

üHigh performance circuitry used for low noise and sonic purity.

üHigh quality, proven reliable parts used throughout.

üRear mounted connectors, comfortable soft armrest, wide write-on strips.

üRugged metal construction for on-the-road rigidity, easily flightcased and transported.

üRemoveable steel base for easy access to individual circuit assemblies.

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12, 16, 24 and 32 channel models.

GL2000-412 10 mono, 2 stereo, 4 groups, 6 aux, 2 stereo returns, L,R, Mono sum

GL2000-416 14 mono, 2 stereo, 4 groups, 6 aux, 2 stereo returns, L,R, Mono sum

GL2000-424 22 mono, 2 stereo, 4 groups, 6 aux, 2 stereo returns, L,R, Mono sum

GL2000-432 30 mono, 2 stereo, 4 groups, 6 aux, 2 stereo returns, L,R, Mono sum

Optional SYS-LINK buss expander system

GL2000-SL1 One kit required per console. User to source interconnecting cables.

SPECIFICATION

INTERNALOPERATINGLEVEL:.-2 dBu

INTERNALHEADROOM: ............+21dBchannels,+23dBmixtooutput.

MAXOUTPUTS:...............balanced+27dBu 600ohmmaxload

unbalanced +21dBu 2kohm max load

METERS:........ L, R .....................peakreading12segmentLED

Groups1-4 ..........peakreading4segmentLED

Channels.............peakreading4segmentLED

PEAKLEDs: ................................Turnon5dBbeforeclipping

POWERSUPPLY: .......................internal

ACMainsinput: ............................range100V to 240V AC @ 50/60Hz

Setwith4positionselector

Powerconsumption ......................60Wmax

MainsFuserating: ........................100-120V AC use T1.6A 20mm

220-240VACuse T0.63A20mm

0 dBu = 0.775 Volts RMS 0 dBV = 1 Volt RMS

FREQUENCY RESPONSE: 20Hz to 50kHz +0/-1dB

DISTORTION:.THD + Noise at +14dBu 1kHz

Mic in to LR out at +40dB gain ...........................0.010%

Line in to LR out at 0dB gain ..............................0.008%

CROSSTALK: .Referredto driven channel at 1kHz

Adjacentchannel...............................................<-94dB

Fadershutoff ................................................<-90dB

Muteshutoff ................................................<-90dB

Panpotshutoff ................................................<-80dB

NOISE: ........... MeasuredRMS 22Hz to22kHz bandwidth

Micinput EIN referred to 150 ohm source ..........<-128dB

Lineinputpre-ampat 0dBgain ..........................<-90dBu

LRoutputresidualnoise ....................................<-94dBu 98dB S/N

LRfaders'0' no channels routed ........................<-90dBu 94dBS/N

LRmix noise with 16 channels routed ................<-84dBu 88dB S/N

Groupfaders'0'nochannelsrouted...................<-91dBu 95dBS/N

Groupmix noisewith 16channels routed ...........<-84dBu 88dBS/N

THE RANGE

GL2000 CONSOLE

GL2000-412...........................width 548mm

GL2000-416 ...........................width 668mm

GL2000-424 ...........................width 920mm

GL2000-432 ...........................width 1160mm

DIMENSIONS

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