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Definitive Technology
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<p>Definitive Technology (sometimes referred to as Def Tech) is an American unit based in <a href="/facts/Vista%2c_California/l3PlIn92">Vista, California</a>, of the Sound United division of electronics company <a href="/facts/DEI_Holdings/0hdjfJp4">DEI Holdings</a>, that designs, develops and sells home theater audio systems, soundbars and headphones. </p>