The Transoniq Hacker was a monthly newsletter for Ensoniq synthesizer enthusiasts. The magazine was originally subtitled The Independent Ensoniq Mirage User's Newsletter and was obviously intended as a means for exchanging information related to the Ensoniq Mirage within the Ensoniq user community.
Each issue of the Transoniq Hacker featured various columns related to various synthesizer-related topics, usually on advanced subjects. Over the life of the newsletter Ensoniq released additional synthesizers, and the newsletter increased its scope accordingly.
The first issue of the Transoniq Hacker was released on July 1985, and the last issue (172/173) on Oct/Nov 1999.
References
Transoniq Hacker Wikipedia(Text) CC BY-SA