Prior to the release of 1969's Plays On, Jones left the group, prompting Holt to move to bass. In 1970 the Climax Chicago Blues Band moved to the Harvest label, at the same time shifting towards a more rock-oriented sound on the LP A Lot of Bottle. Around the release of 1971's Tightly Knit, Newsome was replaced by drummer John Holt; upon Wood's exit in the wake of 1972's Rich Man, the unit decided to continue on as a quartet, also dropping the "Chicago" portion of their name to avoid confusion with the American band of the same name.
In 1974 the Climax Blues Band issued FM Live, a document of a New York radio concert. 1975's Stamp was their commercial breakthrough, and 1976's Gold Plated fared even better, spurred on by the success of the hit "Couldn't Get It Right." However, the rise of punk effectively stopped the group in their tracks, although they continued recording prolifically well into the 1980s; after 1988's Drastic Steps, the Climax Blues Band was silent for a number of years, but resurfaced in 1994 with Blues From the Attic. ~ Jason Ankeny, All Music Guide