Ok, I'm in a rock band that just got our first gig, whee... Anyway, the venue is quite small and we are going to use a small PA for vocals. I have a 2x10 carvin red eye combo to use with a 4 or 5 string bass. So here are the questions. Should I add: A 1x15 cab A 1x18 cab A 4x10 cab OR nothing and just mix in with the PA? I also have the option of adding a cab AND mixing in the PA. *NOTE* I have to compete with two guitars that are loud and a drumset. So if y'all could help a guy out, I would appreciate it a bunch!