Turn of all equipment off.
You may choose to use ¼ phone or XLR jacks for your connections
depending on the requirement.
Connect the female side of your XLR jack to the main out put
of your console or mixer
Connect the male XLR L and R to the input of the compressor
The compressor can either be connected to the equalizer or
effect.
I suggest that you use common sense and experience with
different set ups to see which one provides best of results