The OP is talking about a "live situation", i.e. - through a PA. What sort of PA? A Bose system, SOS's, or a full-blown pro system? Any given mix will sound decidedly different on each of these systems. I have three PA systems. They all sound very different.


There is no plug-in that will substitute for your ears in this situation. The best method I have found is to adjust the gain of each mix to a baseline (-4 dB in my case), play the tracks over the PA at performance levels, and adjust volumes accordingly. It's time consuming, but it works much better than the one button approach.



Regards,

Bob