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Bob Heil - Wikipedia
Bob Heil born October 5, 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 ,  which went on to create unique touring sound systems for bands such as The Grateful Dead and The Who. Heil has been an innovator in the field of amateur radio , manufacturing microphones and satellite dishes for broadcasters and live sound engineers. He has won multiple awards and honors, and in he was invited to exhibit at the Rock and Roll Hall of Fame.
Company founder Bob Heil understood very early in his career as a microphone designer that voice articulation is key to ham radio, both for emergency use as well as for the hobbyist. His ham radio products are a result of that level of concern for the voice. Bob is a legend in amateur radio, an author, and "in demand" speaker at ham events around the world. His weekly "Ham Nation" show can be seen on Twit.
Mobile Solar Sound System "Dares to go where no other sound system has been! Sound system is powered by sunlight with battery backup. High efficiency speakers are used and only 25 watts each is needed to reach volume levels of other speakers requiring watts or more. There are two systems, one that will operate at 25 watts per channel at 12 volts dc and one that will operate at 40 watts per channel at volts ac with included inverter.