Bob Heil the creator of the Heil Talk Box and PR40 microphone talked shop on this weeks TWIT show Home Theater Geeks.
“Bob Heil (October 5, 1940) is an American sound and radio engineer most well known for creating the template for modern rock sound systems. He founded the company Heil Sound in 1966, which went on to create unique touring sound systems for bands such as The Grateful Dead and The Who. He invented the Heil Talk Box in 1973, which was frequently used by musicians such as Peter Frampton, Joe Walsh and Richie Sambora, and is still in use today.
Heil has been an innovator in the field of amateur radio, manufacturing microphones and satellite dishes for broadcasters and live sound engineers. In the late 1980s Heil Sound became one of the first American companies to create and install Home Theaters, and Heil has lectured at major electronic conventions and taught classes at various institutions. He has won multiple awards and honors, and in 2007 he became the first manufacturer to be invited to exhibit at the Rock and Roll Hall of Fame.” – en.wikipedia.org/wiki/Bob_Heil