KLH is an audio company founded in 1957 as KLH Research and Development Corporation in Cambridge, Massachusetts, United States, by Henry Kloss, Malcolm S. Low, and Josef Anton Hofmann originally to produce loudspeakers. KLH also introduced some of the best selling loudspeakers in the world over the course of many years, most notably, the Model Five, Model Six, and Model Seventeen, featuring the acoustic suspension loudspeaker design originally developed by Edgar Villchur and our founder Henry Kloss.