U

 

Unbalanced
This is an audio connection that uses two wires. One wire carries the signal while the other wire is used as the return. This type of connection is particularly vulnerable to noise and interference, particularly with longer cable lengths.

As the two signal leads are not of equal potential difference from the reference ground signal they are considered to be ‘Unbalanced’ with respect to the ground signal.

Uni-directional
See Cardioid.

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The composer reveals the innermost being of the world and expresses the deepest wisdom in a language which his own reason does not understand; like a sleepwalker, who tells things of which he has no clear knowledge when he is awake.”
  Arthur Schopenhauer