ster·e·o·phon·ic 
(stĕr′ē-ə-fŏnĭk, stîr′-)
(stĕr′ē-ə-fŏnĭk, stîr′-)adj.
Of or used in a sound-reproduction system that uses two or more separate channels to give a more natural distribution of sound.
ster′e·o·phoni·cal·ly adv.
ster′e·ophon·y (-ē-ŏfə-nē) n.