Avenson Audio IsoDI Application Manual

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XLR Output P48 volt phantom power required
1
Switches the IsoOut/Parallel jack between a buffered transformer
2
isolated output and a parallel or mix input. Isolated is in.
Push the switch in to lift the Input ground from the XLR pin 1
3
Input to 10 MΩ FET buffer
4
Can be mix input / parallel output or the IsoOut based on switch
5
White LED phantom power indicator
6
Input Input
IsoOut IsoOut
Parallel Parallel
The IsoDI has a transformer isolated power supply to allow a ground lift while still
operating with phantom power. Pin 1 on the XLR is always connected to the
chassis, but can be connected to the Input ground with the XLR switch.
Parallel mode: the Input and the Parallel jacks are wired together so that they can
be used as two summed inputs or as an input and a loop out to an amplifier.
IsoOut mode: the IsoOut jack is a transformer isolated output. This isolation can
break ground loops, but also helps to reject noises from being injected into the
R
EFERENCE
1
3
Unity Gain Unity Gain
FET Buffer FET Buffer
Parallel Parallel
IsoOut IsoOut
Transformer
O
The IsoDI has two modes: Parallel and IsoOut.
input from the amplifier.
G
UIDE
DC to DC DC to DC
Isolated Isolated
Phantom Power Phantom Power
Instrument Instrument
Buffer Buffer
VERVIEW
4
6
XLR XLR
Output Output
Grounded Grounded
Lifted Lifted
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Austin, Texas
(512) 535-5353
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