John, when you say you got it working at home, what did you do? If the sub outs worked at home, why wouldn't they work on a gig? Yes, I have a self powered sub too along with my stand speakers, but sometimes I'd like to cut or boost the bass and drums by running them into extra channels on my mixer. Looking through the options for sub outs, the only one that seems to apply in this case is the "1 to 16" parts options. But this option applies to everything except R1 and R2 which is a bit useless. So I'm really keen to hear how you did it.