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Acoustic Research was a Cambridge, Massachusetts-based company that manufactured high-end audio equipment. The brand is now owned by VOXX.Acoustic Research was known for the AR-3 series of speaker systems, which used the 12 in (300 mm) acoustic suspension woofer of the AR-1 with newly designed dome mid-range speaker and high-frequency drivers.
Edgar Marion Villchur (28 May 1917 – 17 October 2011 [2]) was an American inventor, [2] educator, and writer widely known for his 1954 invention of the acoustic suspension loudspeaker which revolutionized the field of high-fidelity equipment.
Henry Kloss (February 21, 1929 – January 31, 2002) was a prominent American audio engineer and entrepreneur who helped advance high fidelity loudspeaker and radio receiver technology beginning in the 1950s. [1]
Academic and acoustic research career [ edit ] He held electrical engineering degrees from Oregon State and Stanford University , where he conducted his early work with such prominent engineers as Lee DeForest (inventor of the triode vacuum tube ) and Hewlett Packard founders William Hewlett and David Packard , [ 1 ] then taught at Oregon State ...
The two most common types of speaker enclosure are acoustic suspension (sometimes called pneumatic suspension) and bass reflex.In both cases, the tuning affects the lower end of the driver's response, but above a certain frequency, the driver itself becomes the dominant factor and the size of the enclosure and ports (if any) become irrelevant.
Kloss had founded or co-founded a number of earlier loudspeaker and consumer audio companies, including Acoustic Research, KLH and Advent Corporation. It was founded with the specific mission to design and manufacture well-priced, high quality, high performance loudspeakers and audio products to be marketed directly to the consumer. [1]
Hearing Australia is the current incarnation of the Acoustic Research Laboratory that was set up in 1942. Its initial purpose was the investigation of noise on behalf of the Australian Military during World War II. After the war it helped those children whose hearing was affected by earlier rubella outbreaks.
Direct-field acoustic testing, or DFAT®, is a technique used for acoustic testing of aerospace structures by subjecting them to sound waves created by an array of acoustic drivers. [1] The method uses electro-dynamic acoustic loudspeakers, arranged around the test article to provide a uniform, well-controlled, direct sound field at the surface ...
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