Balanced Line Signal Cable

The two wires form a circuit carrying the audio signal one wire is in phase with respect to the source signal.

Balanced line signal cable.

Balanced cables and signals a balanced cable by contrast has three conductors in the connector and three wires in the cable. The chief advantage of the balanced line format is good rejection of external noise when fed to a differential amplifier. A balanced cable by contrast has three conductors in the connector and three wires in the cable. In telecommunications and professional audio a balanced line or balanced signal pair is a transmission line consisting of two conductors of the same type each of which have equal impedances along their lengths and equal impedances to ground and to other circuits.

As in the unbalanced cable the ground wire still surrounds the signal wires and is used as a shield against interference. Balanced cables vs unbalanced cables. One of the signal wires gets inverted which allows the cable to completely avoid picking up outside interference. As in the unbalanced cable the ground wire still surrounds the signal wires and is used as a shield against interference.

Two of those wires carry the signal while one carries the ground. Two signals wires plus a separate ground wire. Balanced cables have three conductors and three wires. The other wire is reversed in polarity.

But what makes a balanced cable special is the way the gear utilizes that extra signal wire.