Abstract: In low power audio and video applications, an audio/video signal converter converts balanced and unbalanced signals using a first converter which converts a balanced signal to an unbalanced signal and a second converter which converts an unbalanced signal to a balanced signal. The first and second converters may be selected (either separately or in any combination) based on any desired signal conversion. The input impedances, output impedances, and the gains, of each of the first and second converters, may be adjusted either manually or automatically, and either independently or jointly, for proper loading and termination of signals.