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Definitive Technology

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Definitive Technology
IndustryConsumer electronics
Founded1990; 32 years ago (1990)
FoundersSandy Gross, Don Givogue, Ed Blaise
HeadquartersVista, California, U.S.
Key people
Kevin Duffy, CEO
ProductsHome audio, loudspeakers, soundbars, headphones, audio equipment
ParentDEI Holdings

Definitive Technology (sometimes referred to as Def Tech)[1] is an American privately held corporation, based in Vista, California, that designs, develops and sells home theater audio systems, soundbars and headphones. They are part of the Sound United division of electronics company DEI Holdings.


The company was founded in Owings Mills, Maryland[2] in 1990 by former Polk Audio founder Sandy Gross, along with Don Givogue and Ed Blaise.[3] Gross served as the company's first CEO and President.[4] The company's first products were monolithic bipolar speaker towers.[5]

In 2004, the company was acquired by Directed Electronics. Directed Electronics was founded by Congressman Darrel Issa and specialized in car alarms and radar detectors. [2] Sandy Gross became President of the company's newly formed audio division. Directed Electronics also bought Polk Audio, which Sandy Gross co-founded also. [6] In 2010, after Sandy Gross had left the company, he introduced a third company called Golden Ear Technology, which is completely separate from Sound United and DEI.

In 2008, Directed Electronics restructured itself as DEI Holdings.[7]

In April 2013, the company combined Polk, Definitive Technology and the Boom Movement brands into a new division called Sound United.[8]

In April 2015, the company released its W7 speaker with support for the Play-Fi wireless protocol for multi-room audio, produced by audio company DTS, Inc., now owned by holding company Xperi.[1] In May, Sound United parent announced a deal with Austrian electronics company Aqipa to distribute Definitive Technology and other Sound United brands in Germany, Austria and Switzerland.[citation needed]


The company's products include home audio systems,[9] floor speakers,[10] wireless home audio,[1] soundbars[11] and headphones.[12]


  1. ^ a b c "Def Tech's W7 multi-room speaker uses Play-Fi to play nice with others". 2015-04-06. Retrieved 2017-04-27.
  2. ^ a b "Directed Electronics buys home audio company". 2004-09-22. Retrieved 2017-04-27.
  3. ^ "Sandy Gross leaving Definitive Technology". 2009-03-11. Retrieved 2017-04-27.
  4. ^ "12 Questions For Sandy Gross, The Cofounder Of Three Legendary Audio Companies". 2014-03-12. Retrieved 2017-04-27.
  5. ^ "Definitive Technology BP9080x Speaker System Review". 2016-07-27. Retrieved 2017-06-03.
  6. ^ "DEI Holdings promotes officers". 2004-09-27. Retrieved 2017-04-06.
  7. ^ "Directed Electronics Buys Definitive Technology". 2011-10-27. Retrieved 2017-04-06.
  8. ^ "DEI Launches Sound United Division". 2013-04-04. Retrieved 2017-04-06.
  9. ^ "Definitive Technology ProCinema 600 review". 2008-04-10. Retrieved 2017-04-27.
  10. ^ "Audio Gets A Double Dose Of High". 2016-05-23. Retrieved 2017-04-27.
  11. ^ "The Best Soundbar You Can Buy (And 6 Alternatives)". 2016-05-23. Retrieved 2017-04-27.
  12. ^ "The best new wireless Bluetooth headphones at CES 2015". 2017-03-03. Retrieved 2017-04-27.
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Definitive Technology
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