Most church sound guys that I know are dedicated to their main instrument: the mixing console. If they play a second, then the statistics suggest that their instrument - like mine - is a bass guitar. And many of us, when it comes to bass guitar skills, are best known as pretty good sound guys. Here's a tool that can help us!
David McLain is a bass guitar player in church, and a church sound and projection system consultant with CCI Solutions in Olympia, WA. He has been working with church AV systems since 1978. You may reach David at firstname.lastname@example.org. He is also co-podcaster of the Sound Theology Podcast.