Our church has a pretty decent sound board but for the life of me, the name of it has slipped my mind, but regardless, I want to learn how to set it up and run it properly. Whenever they play a video, the bass is to deep, causing the speakers to hum, and it drowns out what you're trying to hear. The vocals are not balanced and some of the instruments used are more powerful than the others, making our service sound like, for a lack of a better term, an amplified transistor radio. The board itself has 16 channels so its not like I need to learn to become a recording engineer, but at least learn the basics of mic setup, sound levels, turning off / muting unused mic's when someone is speaking to prevent feedback etc.

Any ideas?

Thanks!!