perrymarshall

Built my first speakers at age 13. Got my first paying customer at 14; was selling my brand via dealer at 17. Got an Electrical Engineering degree from Nebraska. Moved to Chicago and spent 3 years working as an Acoustical Engineer at Jensen where I designed car speakers for Honda, Mazda, Chrysler, Ford and Acura. Occasional author in AudioXpress and Voice Coil. Now doing audio as a hobby. Personal website www.perrymarshall.info. Author of 10 books on business, technology and evolution.