How do those incredible rock bands achieve those massive on-stage sounds? The real answer, in most cases, may surprise you. Ages ago, one of my producers told me a story. Pete Townsend, performing in his usual high energy manner, was caught just offstage by an unusually perceptive fan. No one in the congested mob could hardly miss the intimidating wall of full stacks roaring behind the band, but one detail apparently escaped all of them, save one man.
