Sound 360

[1] The format employed the standard 35mm magnetic stereo soundtracks (left, center, right and surround) in a unique configuration.

The left and right channels were redirected to a pair of large full-range speakers mounted on either side of the auditorium.

The general effect was more enveloping (and often much louder) than a standard 35mm stereo presentation, and very similar to the Megasound process unveiled a few years later by Warner Bros. for the film Altered States.

In addition to Damnation Alley, the film Damien: Omen II was also released in the Sound 360 process.

The 2011 DVD and Blu-ray release of Damnation Alley did not feature a "Sound 360" audio option, as the original elements were not salvageable.