From its humble beginnings in 1947, Crown International has grown to become one of the world's largest and most respected manufacturers of power amplifiers and microphones for professional audio markets. Crown’s history traces back to 1947 and an Elkhart, Indiana minister named Clarence C. Moore (1904-1979). Moore, a longtime radio enthusiast, had spent the early part of the ’40s in Quito, Ecuador working for HCJB, a non-profit Christian broadcasting and engineering group. Following his return to the United States, he felt the desire to supply Christian broadcasters like HCJB with quality electronic products. As a result, Moore founded International Radio and Electronics Corporation (IREC) in 1947 and converted a former chicken coop into the budding manufacturer’s first production facility. The company’s early reputation was built on a family of rugged and compact open-reel tape recorders designed to operate reliably when used by missionaries in remote, often-primitive regions of the world. After modifying and distributing several existing models (Magnecord, Recordio, Pentron and Crestwood) for the first couple of years, Moore obtained a patent in 1949 for a groundbreaking invention: the world’s first tape recorder with a built-in power amplifier (15 watts). Eventually, Moore’s wife and co-founder, Ruby (deceased 2002), suggested that ‘International Radio and Electronics Corporation’ was too long a name for the company. Since IREC had by this point produced vacuum tube tape recorders branded ‘Royal’ and ‘Imperial’, in addition to the fact that the emblem on those products was a fancy crown, she felt that the company should simply be called Crown. Her husband agreed, and, in the ’60s, the company’s name was changed to ‘Crown International, a division of International Radio and Electronics Corporation’. Finally, in 1975, the stockholders voted to change the name of the corporation to Crown International, Inc. In the 1960s, the introduction of the DC300 high-powered, solid-state amplifier offering 150 watts per channel at eight ohms and AB+B circuitry moved Crown into a leadership position in worldwide power amplifier markets. Well over 30 years later, many DC300s are still being used in professional audio applications. In the 1970s, Crown launched the PSA-2 Power Amplifier with a built-in computer to maximize performance of its output transistors. Product diversification began with the introduction of the still-popular line of Pressure Zone Microphones (PZM) and TEF audio analyzer. With the implementation of Grounded Bridge circuitry in the ’80s, Crown offered an innovation providing lower distortion, less thermal stress, higher acoustic output, greater reliability, superior power density and audio quality, Grounded Bridge circuitry was integral to the engineering of the Macro-Tech and Micro-Tech amplifier lines.