quadraphonic
/ˌkwɑdrəˈfɑnɪk/
adjective
- Relating to a sound system that uses four separate channels to create a more immersive audio experience, with speakers placed around the listener.
- The concert was recorded in quadraphonic sound to make listeners feel like they were in the audience.
- Quadraphonic systems were popular for a short time but never replaced stereo.
- My dad still has his old quadraphonic record player from the 1970s.