MLA System USER GUIDE
MLA System User Guide V2.1 98
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.
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