In the early 1950s he became a staff engineer at Radio Recorders at 6000 Santa Monica Blvd, Hollywood.
At International Sound, Kulka recorded artists including Herb Alpert, Nat King Cole, Sam Cooke, Frank Sinatra, Sonny Bono and Little Richard.
CRA is thought to be the first American school to provide unified business and technical education for the recording industry.
Having attracted students from the North America, Asia and Latin America.,[5] some graduates of the school became successful engineers, producers and studio owners.
Kulka was the founder of the San Francisco Chapter of the National Academy of Recording Arts and Sciences (NARAS) and served as chairman for three terms.
As a member of the Audio Engineering Society since 1959, he first served in Los Angeles, and then as chairman of the San Francisco Section for multiple terms.
The Neumann disk mastering room at Golden State was Kulka's pride and joy.