germanium
Headphoneus Supremus
Truth is after some more reading on the subject we are both right. Both wires in a b alanced input do not have to be hot as in driven by an amp to be balanced however that is the most (only actually in my case that I have seen but now i see the others does in fact exist) common configuration I have seen. The other uses a single ended source with the ground I.E. signal return facing a matching impedance as well some times called quasi-balanced but is in fact fully balanced. . This characteristic is a must in order to have common mode interferance rejection.
Balanced audio - Wikipedia, the free encyclopedia
Balanced audio - Wikipedia, the free encyclopedia