quadraphonics

/ kwɒdˈrɒfənɪ; ˌkwɒdrəˈfɒnɪks /

noun

1. functioning as singular a system of sound recording and reproduction that uses four independent loudspeakers to give directional sources of sound. The speakers are fed by four separate amplified signals

Derived Forms

• ˌquadraˈphonic, adjective
• quadraphony, noun