Q10U1A1D2R1A1P3H4O1N1Y4
29 points
QUADRAPHONY is validvalid
use of four transmission channels [n QUADRAPHONIES]
a system of sound transmission using four speakers, also QUADRAPHONICS, QUADRIPHONICS, QUADROPHONICS, QUADROPHONY [n QUADRAPHONIES]
use of four transmission channels [n QUADRAPHONIES]
a system of sound transmission using four speakers, also QUADRAPHONICS, QUADRIPHONICS, QUADROPHONICS, QUADROPHONY [n QUADRAPHONIES]