Next weekend we have a gig in a gymnasium. We are a three-piece combo (guitar, bass, drums) and we play mostly oldies and classic rock. I will be bringing my Markbass CMD121P combo and playing my Fender Deluxe Active Jazz. The guitar player will probably be using his Fender Ultimate Chorus amp. As for the drummer I'm not sure yet whether he will be playing real drums or his electronic kit. Anyhow I know this is going to be a boomy situation with lousy acoustics. How can we make the best of it and what tips do you have for getting the bass to sit well in the mix?