I just purchased a DBX215, primarily to help with eliminating feedback. I have a Fender Passport 250 PA system for vocals and, a Peavy Ecoustic 112 for guitar. The plan was to use Channel 1 for vocals and Channel 2 for guitar. It is my hobby, so I don't have very much experience setting up my equipment in different venues, and zero experience with EQ. I have set up channel 1 by plugging in the mic to input on the DBX and running the DBX output to the PA input, turned it on, it works. Obviously, solved the problem of feedback, also killed all the \"character\" in my voice, it's now flat as a pancake! I have read the little book twice, okay three times, and it's greek to me. I would say I need \"front panel\" training, but basic training in the terminology of EQ is most probably what I need first. Is there anywhere on-line I could go that would be a good starting point? I don't know enough yet to ask an intelligent question.