Many people are confused by mixers because they are complex devices.
In this article I’ll attempt to answer some beginners’ questions on mixer operation:
How do I hook up a mixer to the rest of the system? What jacks are best to use?
How do I use graphic equalizers?
What are compressors used for?
How do I use groups?
How do I set up monitor mixes?
How do I set up the mixer to add effects?
What’s a good resource for understanding mixers?
What jacks should I use to connect the mixer to my sound system?

Figure 1. Mixer connections.
Connect each mic to the stage box (snake).
Connect each snake XLR connector to each mic input XLR connector.
Connect the mixer master or main output to your graphic equalizer input, and connect the graphic output to your house power-amp input. If you are not using a graphic equalizer for the house speakers, connect the mixer master outputs to the inputs of the power amp that drives the house speakers.
If you are recording a board mix of the service or show, connect the mixer REC OUT or TAPE OUT connectors to the recorder line inputs.
Later in this article we’ll cover connections for compressors, the monitor system and effects devices.