quadrisonic
/ˌkwɑdrəˈsɑnɪk/
adjective
- Relating to or using four channels for sound reproduction, creating a surround-sound effect.
- The museum displayed a vintage quadrisonic system from the 1970s.
- Some audiophiles still prefer quadrisonic recordings for their immersive sound.
- The old quadrisonic record player had four speakers placed in the corners of the room.