Abstract: A low impedance stereo audio bus interface between multiple audio transmitters and a receiver. The bus has a core transmitter circuit associated with each output of the multiple audio transmitters and each core transmitter circuit generates a pair of balanced differentiated outputs. The pair of balanced differentiated outputs of the core transmitter circuits are connected in parallel to a core receiver circuit, which recombine the pair of balanced differentiated signals to reproduce the original stereo signals at the input to the receiver. The bus may contain optional circuits to perform functions not performed elsewhere in the transmitter or receiver.