For commercial sound reinforcement, Bozak introduced a biamped columnar loudspeaker in 1962. In 1963, the newly established commercial loudspeaker division was employing about 60 people dedicated to manufacturing the columnar model which was proving a great success. At 18 years of age Bob Betts was hired as Rudy's lab technician, but was soon put in charge of the Acoustics Lab, in 1965. Betts became chief engineer in 1968 after returning from the Vietnam war. Rudy Bozak and Betts traveled extensively on company business and Bozak often tutored Betts with his college work.