Dr. Joseph D'Appolito is a world-renown authority in audio and acoustics, specializing in loudspeaker system design. Dr. D'Appolito holds BEE, SMEE, EE and Ph.D. degrees from RPI, MIT and the University of Massachusetts. As a member of the Audio Engineering Society, Dr. D'Appolito has published over 30 journal and conference papers. His most popular and influential brain child, however, has to be the MTM loudspeaker configuration, commonly known as the "D'Appolito Configuration," which is now used by dozens of manufacturers throughout the world.