stereophonic

adj

Etymology: From stereo- + -phonic, by analogy with stereoscopic.

1. Of or pertaining to sound reproduction using two or sometimes more channels played at different locations to simulate the separation of sources along at least one spatial dimension.

   “[…] this 1953 Hansel und Gretel is a classic example of how a well produced mono recording can seem more stereophonic than many of its later stereophonic rivals.”