Abstract: A device for eliminating Absolute Polarity inversion in a high-fidelity sound reproduction system, wherein the sound reproduction system includes a component for extracting, from a storage medium, an electrical signal coding audio frequencies, the sound reproduction system further including a component for amplifying the electrical signal. The device comprises a housing, an input terminal, a first output terminal and a second output terminal. The input terminal includes a first electrical input conductor or contact and a second electrical input conductor or contact both mounted to the housing. Similarly, the first output terminal includes a first electrical output conductor or contact and a second electrical output conductor or contact both mounted to the housing, while the second output terminal includes a third electrical output conductor or contact and a fourth electrical output conductor or contact both mounted to the housing.