I was wondering if anyone could help me understand the signal that is sent in both unbalanced and balanced cables. As I understand it, an unbalanced cable uses a two wires to send separate mono signals while using a common ground through the shielding as a return. But a balanced cable uses four wires to send the approriate left and right signals along with their inverted signals and can use a grounded shield. Single-ended is termed for the ground return path. But what is the return path for balanced? Any help is much appreciated.