Stage amplifiers were owned by Unicord who was the same company that owned Univox. More than likely, Univox built these amplifiers and Unicord put a Stage logo on them. These amps were of solid-state design, and they came in a variety of configurations. Any further information on Stage amplifiers can be submitted directly to Blue Book Publications.
Amplifiers previously produced in the U.S. during the mid-1970s. Distributed by Unicord, Inc. in Westbury, NY.