酸性摇滚（Acid Rock）是幻觉摇滚的一种激烈、大声的变奏。它吸取了盛期已过的Cream和Jimi Hendrix即席演奏的精华。酸性乐队依赖变奏的吉它、迷幻的歌词和长时间的即兴表演。酸性摇滚存在的时间并不长——在迷幻摇滚的生命期限里，它不断的发展并形成一个中心——最后没有解散的乐队演变成了重金属乐队。
Acid Rock was the heaviest, loudest variation of psychedelic rock. Drawing from the overblown blues improvisations of Cream and Jimi Hendrix, acid rock bands relied on distorted guitars, trippy lyrics, and long jams. Acid rock didn't last too long -- it evolved and imploded within the life span of psychedelia -- and the bands that didn't break up became heavy metal bands.
