Not to defend idiot boy or anything, but if you reverse the wires on an unbalanced cord, the signal would be inverted, or 180 out of phase with what it started out. Its the same effect if you revers the wires going to your stereo speakers. In theory anyway. How this would matter to anybody if, say, the signal from thier drum machine was inverted, is beyond me. If the devices connected this way shared a case ground, like being in the same rack, it would short the signal out, so I seriously doubt that the patchbay in question has this problem, because people would be bitching all over the web and I did a search and theres nothing. Sounds like BS to me, but an unbalanced signal is still AC signal and it still has a phase, and if you reverse the two wires, the phase is reversed.