Crossword clue: designating the reproduction of sound using two or more independent audio channels

The most common answer is stereo (6 letters).

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

stereo 6 letters wn-def

reproducer in which two microphones feed two or more loudspeakers to give a three-dimensional effect to the sound

stereophonic 12 letters wn-def

designating the reproduction of sound using two or more independent audio channels