1. relating to or using a sound reproduction system with four separate channels
Usage: audio technology

Examples

• The quadriphonic sound system created an immersive listening experience.
• He collected vintage quadriphonic albums from the 1970s.
• The concert hall was equipped with quadriphonic speakers positioned around the audience.
• Quadriphonic recordings were popular briefly in the early 1970s.
• The audio engineer mixed the track for quadriphonic playback.
• Many quadriphonic systems required special equipment to decode the four channels.