I just acquired this thing and don't know how to hook it up. I've read about the B.A.S.E. technology and seen pics in the past but this looks a little different. More like a non professional iteration. It's got 3 sets of RCAs close together and 1 set at the far right on the back panel. No XLRs like the one I'm familiar with. Nothing is labeled. I've contacted Bedini but no response. Anybody?