How do I properly set up my PA system?
That's a very broad question, so let's break it down into smaller chunks...
To get started, the Yorkville PA Primer is an amazing booklet on the basics of all PA and sound system operation. We HIGHLY suggest you read it all the way through.
After you've read that, you may want to check out these videos:
Overview of a Pro Sound Mixer
Gain Structure - VERY Important when using a TC-H device that pre-amplifies the signal before the pre-amps on your mixer!