Greg Carttar of 3rd St. R&D Production Services joins me for a deep dive into the early days of live sound, regional sound companies, and the era when people were still building, modifying, and figuring out the tools of the trade in real time. Greg talks about getting his start in electronics, building amplifiers and mixers, and learning from Stanel Sound, where theory, field experience, and the Don Davis book all became part of his education. From there, we get into early country shows w...