Starting in 1966 Bob Heil came back to his home town of Marissa, Illinois and opened Ye Olde Music Shop, one of the country's first pro audio stores where he also sold Hammond organs. He would also fix the organs on stage before a performance for the musicians. Noticing that some PA systems were small, and some did not produce full range sound and some could not project into a large crowd, Bob Heil started creating very large PA systems. Heil Sound began managing the sound in several venues around St. Louis, from auditoriums to bowling alleys. The company experienced its first breakthrough on February 2, 1970, when Bob Heil and his sound team successfully created a new and innovative sound system for The Grateful Dead at the Fox Theater in St. Louis after the Dead's former sound engineer Augustus Owsley Stanley III was incarcerated. Heil Sound then accompanied the band on tour, later accompanying The Who, The James Gang, Jeff Beck, ZZ Top, Humble Pie, Seals and Crofts, Bachman-Turner Overdrive, Leslie West, J. Geils, Ike and Tina Turner, and Chuck Berry.
In 1973 Bob Heil invented the Heil Talk Box, which was the very first high-powered Talk Box to be placed on the market. Heil Sound created the first one to be used on Joe Walsh’s Barnstorm Tour. The product became a signature sound for Joe Walsh, Peter Frampton and Richie Sambora. Heil Sound later sold the rights to Dunlop Manufacturing, Inc., where it continues to be a popular product.
Amateur radio
Around 1980 many of the large acts Heil Sound was working with were no longer touring. According to Heil, "Punk rock was the direction that music was going, and there was no challenge for me in that, so I quit ." Heil began listening again to ham radio, and after feeling that the sound quality was still "mushy with no articulation", began working on microphones. Heil Sound entered the amateur radio market, ostensibly working to fix what he perceived as problems in the industry involving poorly transmitted and received audio. Bob Heil developed lines of radio headsets and components. In 1982 Heil Sound introduced their HC Series elements, specifically the HC-4 and HC-5, which allowed the non-DSP transmitters of the time to produce different sounding audio by changing microphone elements. The most recent is the HC-6, which is used in many of their current microphone models. Heil Sound was also an early installer of large satellite dishes for radio. On May 24, 2011 Bob Heil became host of a new netcast show on Leo Laporte’s TwiT.tv network called “HamNation”. The show focuses on subject matter for the ham radio enthusiast. Bob's first guest was rock star, friend and avid amateur radio operator, Joe Walsh, who also wrote the theme music.
Home theaters
In the late 1980s, Heil Sound entered the home theater movement then becoming popular in the United States.
Microphones
Heil Sound mics are different from others in the amateur radio industry by using large diaphragms.
