Sad to hear about Henry. He was one of the founders at Acoustic Research and he was the "K" in KLH, and was also the founder of Advent and Cambridge Audio. Along with the Original Advent and small Advent loudspeakers, Advent went on to make several other breakthrough products. One was the Advent Cassette Deck which introduced hi fidelity sound to the cassette medium. This deck paved the way for the Nakamichi's, which would come later. I also remember the Advent Videobeam TV projector, also a pioneering product in its day. At the age of 19, I bought a pair of large Advents in the summer of 1971, the first audiophile purchase I ever made, and kept those speakers a good 15 years. When I sold them, they played as well as the day that I bought them. Advent Corporation was one of the first companies that I ran across that gave value for the dollar. A true pioneer in the history of Audio, Henry Kloss will be missed.
