Manual Allen-Heath GLD Digital Audio Mixing System (page 30 of 32) (English)

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GLD User Guide 30 AP8561 iss.2

Specification

Inputs

XLRMic/LineInputs Balanced,(AllXLRonGLD‐80andAudi oRa cks)

Mic/LinePreamp Fullyreca l la bl e

I nputSensitivity ‐60to+15dBu

Analogue Gain +5to+60dB,1dBsteps

Pad ‐20dB

MaximumInputLevel +32dBu

I nputImpedanc e >4kΩ(Pa d out),>10kΩ(Pa d in)

Mic/LineChannelnoise 20‐20kHz,DirectOut@unbalancedout

MicEI N ‐127dBwith150Ωsource

Unitygain

(Padin) ‐90dBu

Lowgain(5dB,Padout)‐93dBu

Midgai n(30dB,Padout)‐89dBu

Mic/LineChannelTHD+N 20‐20kHz,DirectOut@unba lanc edout

Unitygain(Padin) 0.005%‐86dBu@1kHz,0dBuoutput

Lowgain(5dB,Padout) 0.003%‐89dBu@1kHz,0dBuoutput

Midgai n(30dB,Padout) 0.004%‐88dBu

@ 1kHz,0dBuoutput

RCALineInputs Unba lanced(GLD‐80)

I nputSensitivity ‐24to+24dBu,nomina l0dBu

Tri m +/‐24dB,reca l l a bl e

MaximumInputLevel  +18dBu

I nputImpedanc e >10kΩ

RCAcha nnelNoise ‐92dBu20‐20kHz

RCAcha nnelTHD+N 0.0035%‐90dBu@1kHz,0dBuoutput

Outputs

XLROutputs Balanced,Re layprotected

OutputImpedanc e <75Ω

NominalOutput +4dBu=0dBmeterreadi ng

MaximumOutputLevel  +22dBu

Resi dual OutputNoi se ‐91dBu(muted,20‐20kHz)

RCALineOutput s Balanced,Re layprotected

OutputImpedanc e <75Ω

NominalOutput 0dBu=0dBmeterreadi ng

MaximumOutputLevel +18dBu

Resi dual OutputNoi se ‐94dBu(muted,20‐20kHz)

DigitalOutputs 48kHzsamplingra te

SPDIF RCA,600mV,

coaxtermi na tedinput75Ω

AES32chXLRoutput XLR,2.5Vppbalanc edtermi nated110Ω

System

Measuredba lanc edXLRintoXLRout,20‐20kHz,mini mumGain,Padout

DynamicRange 112dB

SystemSi gnal toNoi s e ‐90dB

FrequencyResponse 0/‐0.25dB@20Hz,0/‐0.5dB@20kHz

SystempeaklevelTHD+N 0.0055%‐68dBu@+17dBuoutput,1kHz

SystemLine levelTHD+N 0.0022%,‐84dBu@+9dBuou tput,1kHz

Headroom +18dB

Internalopera ti ngLevel 0dBu

dBFSAlignment +18 dBu

=0dBFS(+22dBuatXLRoutput)

Met erCalibration 0dBmeter=‐18dBFS(+4dBuatXLRout)

Met erPeakindi cation ‐3dBFS(+19d BuatXLRout)

Met erType Fas t(peak)response

SamplingRate 48kHz+/‐100PPM

ADC 24‐bitDelta‐Sigma

DAC 24‐bitDelta‐Si gma

Late ncy 1.49ms (GLD‐80localXLRintoXLRout)

0.68ms(GLD‐80localXLRin

todigitalout)

USBPlaybac k 2channel,WAV,MP3,M4A,FLAC44.1/48kHz

USBRecord 2channel,48kHz/16bit‐WAV

I/OPort 64channelbi‐di recti o nal

Card Opti ons A&HACE,MADI,Dant e,ES,Wa ves,MMO

Operati ngTe mperatureRange 0degCto35degC(32degFto95degF)

MainsPower

GLD‐80 100‐240VAC,50/60Hz,95Wma x

GLD‐AR2412 100‐240VAC,50/60Hz,70Wmax

GLD‐AR84 100‐240VAC,50/60Hz,20Wmax

Control

Faders 100mmmotoris ed

FaderBanks 2I ndependentbanks ‐12,8faders

TouchScreen 8.4"TFT,800x600resol uti on

ControlStri ps 4LayersperBank=80xstrips

StripDisplay LCDperstrip,assignableba cklightcolours

SoftKeys 10assignable

MIDI MIDIInandOut

Network TCP/IPEthernet(for fu tur eapplication)

InputProcessing

48I nputProcess ingChannels Mono=1‐44,Stereo=45/46,47/48

Trim +/‐24dBdigita ltri m

Polarity Normal /Reverse

HighPassFilter  12dB/octave20Hz–2kHz

Insert Assigntoanysockets,In/Out,+4dBu/‐10dBVlevel

Delay Upto85ms

I nputglobal setti ng‐ms ,feet,meters ,samples

Gate

Sidechain Selfkey,In/Out,Sel'listen'

SidechainLo‐CutFi l ter 12dB/octave,Freq

20Hz–5kHz

SidechainHi‐CutFi l ter 12dB/octave,Freq120Hz–20kHz

Thre shol d ‐72dButo+12dBu

Depth 0to60dB

Atta ck 50us to300ms

Hol d 10msto5s

Releas e 10msto1s

PEQ

Type 4‐Bandfullypa rametric,+/‐15dB

FrequencyRa nge Globa lsettingforInputs=20‐20kHzor 'Analogue'

AnalogueRanges 20‐200Hz,35‐1kHz,500‐15kHz,2k‐20kHz

Band1 Sel ectabl e

LFShelving,Bell,Hi‐Pass

Band2Bell

Band3Bell

Band4 Sel ectabl eHFShelving,Bell,Lo‐Pass

BellWidth Non‐consta ntQ,var iable,1.5to1/9thoctave

Shel vingType ClassicBaxandall

Hi‐Pass,Lo‐PassFilter 12dB/octave

Compressor

Sidechain Selfkey,In/Out,Sel'listen'

SidechainLo‐CutFi l ter 12dB/octave,Freq20Hz–5kHz

SidechainHi‐CutFi l ter 12dB/octave,Freq120Hz–20kHz

Thre shol d

‐46dButo18dBu

Ratio 1:1toinfinity

Attack 300us–300ms

Releas e 100ms–2s

Knee Soft/Har d

ManualTypes PeakManual,RMSManual

AutoTypes Voca lA uto,OptoAuto,PunchBag

ChannelDirectOut Indivi dualTrim(perchannel)

Options Source,follo wFader,followMute(globalforall)

MixProcessing

20MixProcessi ngChannels Configureasmono/ste reoGroups,Aux,Mai n,Matrix

Mains=None,LR,LCR.LR+M(bus),LR+M(sum)

ExternalInput Assignablesource

Trim +/‐24dBdigitaltri m

Polarity Normal /Reverse

Insert Assigntoanysockets,In/Out,+4dBu/‐10dBVlevel

Delay Upto170ms

Mixglobal se tting‐ms ,feet,meters,samples

GEQ

Type Constant1/3octave,28bands31Hz‐16kHz

Gai n +/‐

12dB

GEQFaderFlipMode 2overlappingfrequencyba nks on stripfaders

layer1‐31‐1kHz+Mixma sterfader

layer2‐500‐16kHz+Mixmast erfader

SELkeyres etsfrequencyba nd to0dB

RTAfollowingPAFLisdispl ayedonstripmeters

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Allen-Heath GLD Digital Audio Mixing System Manual

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