Audio Connections; Input Connections; Using Unbalanced Connections - Martin Audio U-Hub User Manual

U‐Hub
Audio Connections
Input Connections
For each audio input there is a female XLR connector for analogue or AES signals.
The HOT, + or 'in phase' connection should be made to pin 2 of the XLR connector.
The COLD, ‐ or 'out of phase' connection should be made to pin 3 of the XLR connector.
Pin 1 of the XLR connectors is internally connected to the chassis. The shield of the input cable should always be connected Pin
1 of the XLR to ensure that EMC performance and regulations are met.
Using unbalanced connections
Please note that the use of unbalanced connections is not recommended, however when connecting the U‐Hub to an unbalanced
audio source, the signal conductor should be connected to XLR pin2. The 'Cold' conductor or cable screen should be connected
to XLR pin 1 with a short connection made between pin 1 and pin 3.
U‐Hub User Guide V1.0
USER GUIDE
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