For 45 years ESS® Laboratories… has been an industry leader since the mid-1970s and is proud to announce the introduction of its enhanced ESS-Heil™ Air Motion TransformerTM. The original air motion transformer was created by the noted German physicist, Oskar Heil, and his patent was licensed exclusively to ESS® Laboratories for production in the United States.
The Heil Air Motion TransformerTM uses revolutionary, and unique, technology that remains unsurpassed and is state-of-the art. The key to the system is the design of its patented, double-sided diaphragm and its magnetic components that concentrate the sound unknown in conventional transducers. The sound signal moves fi ve times faster than the air-motion of a conventional cone driver.