# Sound 360

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**Sound 360** was the name of a [motion picture](/source/Film) sound system used by [20th Century-Fox](/source/20th_Century-Fox) to enhance the premiere engagements of their 1977 feature *[Damnation Alley](/source/Damnation_Alley_(film))*.[1][2][3][4]

The format employed the standard [35mm](/source/35mm_movie_film) magnetic stereo soundtracks (left, [center](/source/Center_channel), right and [surround](/source/Surround_channels)) in a unique configuration. The [center channel](/source/Center_channel) was directed to the usual behind-the-screen loudspeaker. The left and right channels were redirected to a pair of large full-range speakers mounted on either side of the auditorium. The surround channel was reproduced by a single full-range speaker mounted in the back.[5] The general effect was more enveloping (and often much louder) than a standard 35mm stereo presentation, and very similar to the [Megasound](/source/Megasound) process unveiled a few years later by [Warner Bros.](/source/Warner_Bros.) for the film *[Altered States](/source/Altered_States)*. In addition to *Damnation Alley*, the film *[Damien: Omen II](/source/Damien:_Omen_II)* was also released in the Sound 360 process.

## See also

- [Sensurround](/source/Sensurround)
- [Megasound](/source/Megasound)

## References

1. Barratt, Adam (2004). ["Movie Sound Chronology"](https://web.archive.org/web/20050311043636/http://www.spannerworks.net/reference/10_3a.asp). *SpannerWorks DVD and Home Theatre*. Archived from [the original](http://spannerworks.net/reference/10_3a.asp) on March 11, 2005.

1. ["Damnation Alley"](https://catalog.afi.com/Catalog/moviedetails/55428). *AFI Catalog*. 2024. Retrieved 2025-06-20.

1. Koll, Leonard (December 1977). ["The 20th Century-Fox "SOUND 360" System"](https://archive.org/details/sim_american-cinematographer_1977-12_58_12/page/1220/mode/2up). *American Cinematographer*. Vol. 58, no. 12. p. 1257.

1. ["Sensurround: A Startling New Multi-Dimensional Film Experience!"](https://us.kef.com/blogs/news/sensurround-a-startling-new-multi-dimensional-film-experience). *KEF US*. 2019-09-18. Retrieved 2026-04-07.

1. McGee, Marty (2010). [*Encyclopedia of Motion Picture Sound*](https://books.google.com/books?id=H7zeCQAAQBAJ&dq=%22Sound+360%22+%2220th+Century-Fox%22+-wikipedia&pg=PA228). McFarland. p. 228. ISBN 978-0-7864-4916-3.

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Adapted from the Wikipedia article [Sound 360](https://en.wikipedia.org/wiki/Sound_360) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Sound_360?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.