I apologize in advance for my criminal ignorance.... Ok, so I do FOH at my church. I mix very well, but am admittedly deficient at most things related to that rack of processors behind a tinted glass door. I guess I get intimidated by all those knobs with tiny writing around them and mesmerized by the blinking lights. So last weekend (someone else doing FOH) we had a challenging vocalist leading, and the usual BL singing backup. For some inexplicable reason, they had the sub leader use the BL's mic (and channel), and put the usual BL on a different mic. I'd have perhaps done this differently. Anyway, *everything* changed. This weekend the BL is back on his usual channel. I fixed the gain, fixed the fx, fixed the EQ... and have a compression nightmare. They tweaked it heavily for the sub, and it absolutely doesn't work for the BL. In fact, it sounds like he's singing from underneath a sofa. I don't know what I'm doing here, so I thought fast and copied over the settings from the compressor on the channel where he was last weekend. Didn't work. Still under the sofa. Then I gained down some and hit the magic button called "bypass." This sounded much better than under the sofa, but leads to its own problems. By the time rehearsal was over, I had achieved, through random and ignorant knob turning, something sorta ok, but it was very prone to feedback. So my choices are: 1) Under the sofa, but no chance of feedback 2) Out from under the sofa and sounds sorta ok, but high feedback potential 3) Bypass 4) Get a brilliant suggestion from one of you. Yes, I could break out my big Yamaha book, but I'm too stupid to understand it and it makes my head hurt. Everything's analog. The compressor is some old dbx unit that has four knobs and three buttons and two sets of lights. I'd like to be more specific.... Thanks.