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.

For more information, check out the Dynaco Wikipedia page and this unofficial fan page.