Audio: circuit that uses a single conductor and a shield for connection. Unbalanced lines are more susceptible to line noise and interference. Compare to Balanced Line. Electronics: circuit with a single branch.
An electrical circuit in which the two legs of the circuit are not balanced with respect to ground. Usually, one leg will be held at ground potential. Unbalanced circuit connections require only two conductors (signal "hot" and ground). Unbalanced audio circuitry is less expensive to build but under certain circumstances is more susceptible to noise pickup.
Unbalanced microphones and cables are not recommended for areas where there is likely to be electrical interference or where microphone cable needs to be run a long distance. The reason for this caution is because, unlike balanced output, unbalanced output carries a signal on one conductor only, and unbalanced input recognizes any signal on that conductor. As a result, the final sound signal contains any noise or hum that the cable has accumulated.
In audio, a signal passed on two conductors, one of which is usually kept at ground. Noise induced into the line is not cancelled as it is in the case of a balanced circuit. Unbalanced signals are better kept to short runs. See also, "Balanced".
an audio circuit whose two conductors are unequal at ground, usually because one conductor operates as ground. An unbalanced audio circuit is more susceptible to noise problems than balanced circuits. Noise can be combated by keeping lines as short as possible
This does not refer to the person who came up with all these wine descriptions like cat's pee. It really means the wine has an excess of one or more of its elements, such as fruit, alcohol, acid, tannin or oak.