Radiomercato.com

Bob Heil, K9EID - "the man who defined the sound of live rock 'n' roll music and brought audio engineering principles into mainstream amateur radio use" - passed away on 28 February at the age of 83. He founded Heil Sound in 1966, and designed sound systems for legendary musicians such as The Grateful Dead, The Who, Joe Walsh, and Peter Frampton. "Parallel to his commercial and artistic success in live music, was his passion for amateur radio. He was active in ham radio from a young age and merged his expertise in audio engineering with his love for radio. Heil Ham Radio was founded to produce microphones, headsets, and other gear for radio amateurs with an emphasis on high-quality audio" [TNX ARRL]