I have a couple of microphones around our reh. space and I want to hook them all into a mixer to get a good mix that I can put into my computer for recordings. The only problem right now is that I don't have a sound out from my pa for the vocals. My question is... is it better to mic the pa speaker or figure out how to do a sound out from the pa. AND, how do I get sound out from the PA? Can I use the effects out? THanks.