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Allen-Heath iDR-8 Manual

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42 IDR-8 User Guide
Description
iDR-8 8 mic/line in 8 line out main processor
iDR-in 8 mic/line in audio expander
iDR-out 8 line out audio expander
iDR-switch 24 switch, 16 logic output expander
PL Range of wall plates and remote controllers
iDR-8 Operator Front Panel
Face plate fitted
2x16 character assignable backlit LCD display
16x installer assigned soft keys
2x scroll keys
32x installer assigned 3-colour soft LEDs
Headphones socket with recessed level trim
Key function label protected by window
iDR-8 Installer Front Panel
Face plate removed (4x 2mm hex screws)
Setup keys – menu, enter, esc, scroll up/down
Menu items – patch select, clock, day, unit name,
network setup, PPP setup, audio monitor, diagnostics
Status LEDs – slave, ext sync lock, 96kHz
RS232 – for connection to PC COM port
Front/rear RS232 port select switch
Code update mode switch
Ident strip – for installer fitted custom label
iDR-in, iDR-out Front Panels
Status LEDs – link, lock, power
8x installer assigned 3-colour soft LEDs
iDR-switch Front Panel
Status LEDs – link, power
DSP
2x Motorola 24bit processors, 56bit mix accumulator
Selectable 48kHz or 96kHz sample rate
Audio matrix (48kHz) 16x16
Audio matrix (96kHz) 8x8
Latency XLR in to XLR out with processing <2.3ms
A/D Converters
24bit resolution
Dynamic range 109dB A-weighted, 106dB unweighted
D/A Converters
24bit resolution
Dynamic range 115dB A-weighted, 112dB unweighted
Performance
Frequency response 20Hz-20kHz +0/-0.5dB
Crosstalk <-80dB @ 1kHz, 0dB gain
THD+noise <0.01% @ 1kHz, 0dBu
Residual output noise <-93dBu
Input to output noise @ 0dB gain <-87dBu
Input to output noise @ 50dB gain <-73dBu
Mic/Line Inputs x8 (x16 expanded)
Female 3pin XLR
Electronically balanced, pin 2 hot
Impedance 2k ohm (pad out), >10k ohm (pad in)
Gain range -15 to +50dB in 3dB steps
Pad -20dB
Sensitivity (pad out) -50 to -5dBu
Sensitivity (pad in) -30 to +15dBu
Maximum input level +33dBu
Pre converter soft limiter -4dBFS, switchable
Phantom power +48V DC switched
Line Outputs x8 (x16 expanded)
Male 3pin XLR
Electronically balanced, pin 2 hot
Impedance <75 ohms
Maximum output +18dBu
Expander Input Port
RJ45 connector
Proprietary 8 channel digital audio
From iDR-in audio expander
CAT5 STP cable up to 250 metres (825 feet)
Expander Output Port
RJ45 connector
Proprietary 8 channel digital audio
To iDR-out audio expander
CAT5 STP cable up to 250 metres (825 feet)
Stereo Monitor Inputs
Ripple through audio monitor
Can be assigned as extra channel inputs
Separate L and R TRS jacks
Electronically balanced, tip hot
Impedance >30k ohm
Sensitivity 0dBu
Maximum input +18dBu
Stereo Monitor Outputs
Line output from active monitor bus
Can be assigned as extra output channels
Separate L and R TRS jacks
Electronically balanced, tip hot
Impedance <75 ohms
Normal output 0dBu
Maximum output +18dBu
Headphones
Stereo output on TRS jack
Tip left, ring right
For headphones >30 ohms impedance
Front panel recessed level trim
Adjust with flat bladed screwdriver
… 42 …


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