"Rick Rubin was recording the Cult in Studio A and we [Platt and the studio engineers] stood in the airlock just outside the studio. A snatch of Highway to Hell would get played and then a snatch from Back in Black and then a snatch of Led Zeppelin, and we thought, "What the hell's going on there?" [A studio assistant] said, "Well, he's getting the guitar sounds from Back in Black, the drum sound from Highway to Hell and the voice sound from Led Zeppelin!" Literally, as he was mixing he was getting a guitar sound on the Cult and then comparing it directly with the guitar sound that he wanted to get from Back in Black. The same with all the other instruments"