Sound That Is Broadcast From at Least Two Speakers

Puzzle 10 of Radio Station Medium Pack

Question is: Sound That Is Broadcast From at Least Two Speakers

and the answer is: STEREO

Word Meaning:

STEREO — A system of recording or reproducing sound that uses two or more channels, each playing a portion of the original sound at different locations in order to simulate the separation of sources along at least one spatial dimension.

Definitions from Wiktionary.

Sound that is broadcast from at least two speakers Radio Station Answers | CodyCross Solutions