The Collaborative International Dictionary of English v.0.48:
audio system \audio system\, audio-system \audio-system\n. 1. a system of electronic equipment for recording or reproducing sound. Syn: sound system. [WordNet 1.5]WordNet (r) 3.0 (2006):
audio system n 1: a system of electronic equipment for recording or reproducing sound [syn: audio system, sound system]