How and Why are compressors used for vocals or in a sound reinforcement system at all? I'm trying to find this info for our Band on whether to incorporate them into our PA system. We're looking for the optimum clairity that can be acheived with eletronic gear. If such a thing is possible. I've heard some pretty awesome live sound in the 25 plus yrs. performing but until recently I've never payed too much attention to what the engineers were doing to get crisp voices and distinct acoustic sound during live performances. Help!! An inquiring dimwit needs to know!!