Dynaco was founded in 1955, and is best known for their famous and best-selling Stereo 70 amplifier introduced in 1959.
The Dynaco ST-70 also spawned many offshoots and modified versions of its design, including the Electronic Industries ST-70 C2/C3 which laid the foundation for the company that became Audio Research. Today, collectors continue to pursue vintage ST-70s.
Later in its history, Dynaco made many other products including CD players, matrix surround devices, tuners and loudspeakers.
Dynaco made a brief but not sustained comeback in the early 1990's.
Read Ken Kessler's review of the Dynaco Stereo 70 Tube Amp on HomeTheaterReview.com.