If there's that big a difference in the levels of the vocals & the rest of the band, you'll just have to set it for the vocals to not go over & try to work with it.
Definitely try out Brian's suggestion to try different spots in the venue, that can have a huge effect in many rooms.
And for those of you who've hit me with at least 5 -Ts in the last day, if momule & I can't have a civil disagreement on something without you getting up in arms about it, then that's a shame on a board where so much information is subjective (as always will be regarding what you hear, etc.). More than one person agreed with me, yet those that didn't obviously have hit me with -Ts. If that makes you feel better, go ahead. I think momule has his opinion, & knows what he's doing, I just happen to disagree that it's the only "right" method. And I didn't appreciate the veiled insult in reference to my suggestion.