Martin Lange Jr., the engineer who developed the prototype for the first Koss Stereophone, inspired by John C. Koss Sr.'s idea for personal stereo headphones, died this week in Glendale, Wis., at the age of 82.
Read this article from the Milwaukee Journal Sentinel newspaper to learn about the life of this fascinating engineer:
http://www.jsonline.com/news/obituaries/39890217.html
