So is this just a terrible idea, or what? From what I understand, bass cabs are much like sound reinforcement cabs - they can handle whatever you run into them. I imagine the head is more geared towards low frequencies, so maybe that's problematic? I'm also wondering about the quality of sound with being muddy from both the voice and the bass. But, given that I might want to try it ... what do I need to do? I was thinking about getting boss line selector, on which I could adjust the input volume of both bass and vox mic. Would I need anything else? A mic question, too ... my trombone mic (a dynamic mic) does great with my amp. But I tried by buddy's Shure vocal mic, and it was incredibly quiet. What gives? Thanks.