Longman Dictionary of Contemporary English
surround-sound
noun
EXAMPLES FROM CORPUS
▪ Dolby Digital, the next generation in surround-sound, is coming to the mass market.
▪ The Auri is home theater seemingly gone mad, promising a full surround-sound experience through an ordinary pair of headphones.
▪ The big snag for listeners is that the equipment for receiving the surround-sound is not yet on sale.
Wiktionary
surround-sound
n. (alternative spelling of surround sound English)
Usage examples of "surround-sound".
Who wants to explore Mars and find their every move second-guessed by couch potatoes -- all watching the 21st Century on their 3D TVs in well-warmed, surround-sound cocoons a hundred million miles away?