These high-end, professional recording microphones were used in a recording studio in Sydney, Australia in the 1960s. The music recording industry in Australia in the 1960s was heavily influenced by overseas industries, particularly the UK. Because of the distance between Australia and the UK, Europe and the US, where recording equipment was designed and manufactured, studio set-ups were expensive, and often dated compared to those in the northern hemisphere. Despite this, both artists and recording engineers persevered, and Australia has been recognised domestically and internationally as a nation with a very high percentage of musical talent. These AKG microphones were part of an ambitious movement which eventually established a recording industry in Australia.
These AKG models were used throughout the 1960s and 1970s in recording studios around the world and were highly regarded by recording professionals. The D19C in particular is famous for having been used at Abby Road Studios to record Ringo Star's (the Beatles drummer) drum kit in the 1960s.