Hey guys, I was just playing around with my old SWR workingpro 12 amp, and I REALLY love the sound the head puts out, but I'm not too crazy about the speaker. I was wondering if any of you have experience putting Combo Heads into a custom rack. I would love to do this so I can push my Carvin speakers with it. There are two wired connecting the head to the enclosure. One is the cord for the speaker, but I'm not sure what the other one is...anyone know?