quadraphonic(redirected from quadrophonically)
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quad·ra·phon·icalso quad·ri·phon·ic (kwŏd′rə-fŏn′ĭk)
Of or for a four-channel sound system in which speakers are positioned at all four corners of the listening space, reproducing signals that are independent of each other.
qua·draph′o·ny (kwŏ-drăf′ə-nē) n.
or quad•ri•phon•ic(ˌkwɒd rəˈfɒn ɪk)
of or pertaining to the recording, reproduction, or transmission of sound by means of four channels instead of two; four-channel.