Sennheiser Electronic Corporation (SEC) is the U.S. wholly-owned subsidiary, with headquarters in Old Lyme, Connecticut. SEC represents all Sennheiser products in the United States. It distributes a variety of other pro audio lines, including Neumann, K+H, and HHB. Our commitment to the world of audio is simple: we offer products that provide the finest combination of performance and value available anywhere, and back them up with superlative service.