ALLEN & HEATH GLD

GLD User Guide 32 AP8561 iss.3
Specification
Inputs
XLRMic/LineInputs Balanced,(AllXLRonGLD‐80andAudioRac ks)
Mic/LinePreamp Fullyrecallable
I nputSensitivity ‐60to+15dBu
Anal ogueGain +5to+60dB,1dBsteps
Pad ‐20dB
MaximumInputLevel +32dBu
I nputImpeda nce >4kΩ(Padout),>10kΩ(Padin)
Mic/LineChannelnoise 20‐20kHz,DirectOut@unbalanc edout
MicEIN ‐127dBwith150Ωsource
Unitygain
(Padin) ‐90dBu
Lowgain(5 dB,Padout)‐93dBu
Midgai n(30dB,Pa dout)‐89dBu
Mic/LineChannelTHD+N 20‐20kHz,DirectOut@unbalancedout
Unitygain(Padin) 0.005%‐86dBu@1kHz,0dBuoutput
Lowgain(5 dB,Padout) 0.003%‐89dBu@1kHz,0dBuoutput
Midgai n(30dB,Pa dout) 0.004%‐88dBu
@1kHz,0dBuoutput
RCALineInputs Unbalanc ed(GLD‐80)
I nputSensitivity ‐24to+24dBu,nominal0dBu
Tri m +/‐24dB,recallable
MaximumInputLevel  +18dBu
I nputImpeda nce >10kΩ
RCAcha nnelNoi s e ‐92dBu20‐20kHz
RCAcha nnelTHD+N 0.0035%‐90dBu@1kHz,0dBuoutput
Outputs
XLROutputs Balanced,Re layprotected
OutputI mpedance <75 Ω
Nomina l Output +4dBu=0dBmeterrea ding
MaximumOutputLevel  +22dBu
Res idualOutputNoi s e‐91dBu(muted,20‐20kHz)
RCALineOutputs Balanced,Re layprotected
OutputI mpedance <75 Ω
Nomina l Output 0dBu=0dBmeterreadi ng
MaximumOutputLevel +18dBu
Res idualOutputNoi s e‐94dBu(muted,20‐20kHz)
DigitalOutputs 48kHzsamplingra te
SPDIF RCA,600mV,
coaxtermina tedinput75Ω
AES32chXLRoutput XLR,2.5Vppbalan cedtermi nated110Ω
System
Measuredbalanc edXLRintoXLRout,20‐20kHz,minimumGai n,Pa dout
DynamicRange 112dB
SystemSignaltoNoi s e ‐90dB
FrequencyResponse 0/‐0.25dB@20Hz,0/‐0.5dB@20kHz
Systempea klevelTHD+N 0.0055%‐68dBu@+17dBuoutput,1kHz
SystemLinelevelTHD+N 0.0022%,‐84dBu@+9dBuoutput,1kHz
Head r oom +18dB
Internalopera tingLevel 0dBu
dBFSAlignment +18dBu
=0dBFS(+22dBuatXLRoutput)
MeterCalibration 0dBmete r=‐18dBFS(+4dBuatXLRout)
MeterPeakindica tion ‐3dBFS(+19dBuatXLRout)
MeterType Fa st(peak)response
SamplingRate 48kHz+/‐100PPM
ADC 24‐bitDelta‐Sigma
DAC 24‐bitDelta‐Sigma 
Latency 1.49ms(GLD‐80localXLRintoXLRout)
0.68ms(GLD‐80localXLRin
todigita lout)
USBPlayba ck 2c hannel ,WAV,FLAC44.1/48kHz
USBRecord 2channel,48kHz/16bi t‐WAV
I/OPort 64c hannel bi‐dir ectional
Car dOptions A&HACE,MADI,Dante,ES,Wa ves,MMO
Operati ngTemperature 0degCto35degC(3 2degFto95degF)
Control
TouchScreen 8.4"TFT,800x600resoluti on
Faders 100mmmotoris ed
GLD‐80FaderStrips 2Banks(12,8),4La yers=80xstrips
GLD‐112FaderStrips 3Banks(12,8,8),4La yers=112xstrips
StripDisplay LCDperstrip,assignablebac kli ghtcol ours
SoftKeys 10assignable
MIDI MIDIInandOut
Network TCP/IPEthernet
FXProcessing
InternalFX 8xRackFXengi ne
Types Reverbs,Delays,Modulators,Sub‐ha rmonics,
Pi tchShift,RotarySpea ker,De‐Esser
Mode Send>Return,Inserted,DaisyChainFX
FX'Short'ReturnChannels
8Stereodedi c atedreturns Addstoinputs fo rupto56sourcestothemi x
Controls Fader,Pan,Mute,RoutingtoGrp,Aux,FX,Mai n
FXReturnPEQ SameasInputChannel
PEQ
InputProcessing
48ProcessingChannel s Mono=1‐44,Stereo=45/46,47/48
Trim +/‐24dBdi gital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 ,Bypassswi tch
I nputglobal setting‐ms,feet,meters ,sampl es
Gate
Sidechain Selfkey,In/Out,Sel'listen'
SidechainLo‐CutFilter 12dB/octave,
Freq20Hz–5kHz
SidechainHi‐CutFilter 12dB/octave,Freq120Hz–20kHz
Threshol d ‐72dButo+12dBu
Depth 0to60dB
Attack 50us to300ms
Hol d 10msto5s
Rel ease 10msto1s
PEQ
Type 4‐Bandfullyparametric,+/‐15dB
Frequenc yRa nge Globalsetti ngfo rInputs=20‐20kHzor'Analogue'
Anal ogue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‐constantQ,var iab le,1.5to1/9thoctave
ShelvingType ClassicBaxandal l
Hi‐Pass,Lo‐Pa ssFilter 12dB/octave
Compre ssor
Sidechain Selfkey,In/Out,Sel'listen'
SidechainLo‐CutFilter 12dB/octave,Freq20Hz–5kHz
SidechainHi‐CutFilter 12dB/octave,Freq120Hz–
20kHz
Threshol d ‐46dButo18dBu
Ratio 1:1toinfinity
Attack 300us –300ms
Rel ease 100ms–2s
Knee Soft/Hard
ManualTypes PeakMa nual,RMSManual
AutoTypes Vocal Auto,OptoAuto,PunchBa g
ChannelDirec tOut I ndivi dualTri m(perchannel)
Opti ons Source,followFader,followMute(globalforall)