About Dynamic Sounds Associates, LLC

Dynamic Sounds Associates, LLC (DSA) was formed for the sole purpose of designing and building the finest possible audio electronic equipment. Our design approach is one that permits no compromises when it comes to the reproduction of audio. The founder of DSA, Douglas H. Hurlburt, has been associated with the design and building of audio equipment for his own uses since his high school days. He established DSA so that he can bring to the discriminating audio consumer the lessons that he has learned over many years of designing and building audio electronic equipment.

Douglas Hurlburt obtained his undergraduate degree in mathematics and physics from Johns Hopkins University in 1962. He received his M.Sc. in Solid State physics in 1964 from McGill University, and a Ph.D. from McGill in Electrical Engineering in 1972. His professional career began at RCA Ltd. (Montreal) where he worked on the development of microwave integrated circuits and later on the design and development of surface acoustic wave (SAW) devices and systems. In 1976 he moved to MIT Lincoln Laboratory where he continued to work on advanced SAW devices until 1978. At that time he became involved in the analysis, design and development of ultra-wide band spread spectrum communications systems and airborne radar systems. During this time he both designed and fabricated critical systems components for advanced concept communications and radar systems.

From 1988-1990 he served as a Program Manager at the Defense Advanced Projects Agency (DARPA) where he managed multi-million dollar programs focused on developing advanced radar systems and related technologies. After leaving DARPA he stayed in the Washington, D.C. area and has continued to provide consulting services, radar system analyses, and program management assistance for the Department of Defense (DoD) and other Government agencies.

Audio has been a life long consuming interest and he has designed and built many of his own system components, including a pure Class-A 125W/channel, DC coupled power amplifier. The development of the Phono ONE came out of a desire to design the finest possible phono preamplifier without regard to the potential cost. It is a project that has been in development for over three years, and has been through many revisions to provide features and functionality that he considered critical for the discriminating audio listener. The current Phono ONE is the culmination of these efforts.