As David explained then, “In my short time at Wisdom working with Tom and the engineering team, I have seen and been part of some dramatic technological advancements in transducers for high quality audio reproduction systems and I quickly became excited to jump in with both feet. In 2006, David Graebener, joined Tom Bohlender and Ed Jaeger in their new company, Wisdom Audio, continuing to work on planar magnetic transducer development. He also won many awards from both CEDIA and CES for his designs. David was always sought after as a consultant for transducer development, was involved in many patents related to planar-magnetic transducer design and is associated with the development of more than 130 electro-acoustic designs. Graebener also worked with American Technology Corporation, Eastern Asia Technology Company, consulted for GCInnovations, and was owner of David Graebener Consulting and partner in Tyee Group.
He was owner of Advanced Transducer Engineering and co-founder of Solution Matrix, where clients included Boeing Commercial Airplane Company, Pacific Car and Foundry, NCT, Onkyo, and Carver/Toshiba. From the late 1970s through the 80s, Graebener was vice president, research & development of Speakerlab. In addition, they produced two product lines using their planar magnetic drivers, a line of floor-standing speakers and another of in-wall speakers.ĭavid Graebener continued to be involved with the design and development of transducers and systems for the rest of his career and is rightfully considered an authority on planar-magnetic design.
Bg radia drivers#
The company manufactured drivers under OEM contracts for several prestigious loudspeaker firms. During those years, the technology was developed to the level where it could be manufactured in a repeatable and consistent manner, in various forms and sizes, using a variety of materials suited for specific performance requirements. They gathered a group of sophisticated private investors and formed the Bohlender Graebener corporation for the purpose of further developing and marketing this unique technology. In 1994 David, Tom Bohlender, and Warren Kocmond concluded that this type of speaker technology had some serious potential in today’s marketplace. We therefore must thank David for more than just producing his line of planar magnetic transducers. According to Ed Dell, the founder of audioXpress, David’s earlier involvement with SpeakerLab - one of the first employee-owned, mail-order speaker kit companies - was also the inspiration for Ed to start Speaker Builder. At that time, David Graebener began developing the transducer and, ten years after, he set out on his own, completed the development of this technology, and marketed these speakers under the company name of Applied Technology Engineering. In the late 70’s, David Graebener and four other speaker enthusiasts started a company called SpeakerLab in the Seattle area. Bohlender Graebener (BG) was a company located in Carson City, Nevada, that produced high-quality planar magnetic audio transducers.
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