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Josef Anton Hofmann
Born (1924-07-22 ) July 22, 1924Died November 12, 2010(2010-11-12) (aged 86 ) Alma mater Harvard University (AB, MA, PhD)Occupation Audio engineer Years active 1954–1989 Known for Hofmann's Iron Law Spouse Trudi Takayama Children 3 Parent(s ) Josef Hofmann and Betty Short
A KLH Model Eight radio
Josef Anton Hofmann (July 22, 1924 – November 12, 2010)[1] [2] audio engineer and speaker-system designer. He is known for Hofmann's Iron Law, and was a son of pianist Josef Hofmann .[2]
Biography
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Hofmann was born in London in 1924, grew up in Philadelphia and Los Angeles , and graduated from Fairfax High School of Los Angeles in 1942.[3] California Institute of Technology and the University of Pennsylvania and worked on the Manhattan Project as a member of the United States Army .[3] Harvard University , ultimately earning a doctorate there in 1953.[3] Acoustic Research , KLH , and Advent Corporation , all in Cambridge, Massachusetts .[3] Henry Kloss and Malcolm S. Low.[4]
Hofmann and his wife, who were married in 1951, had three children. Hofmann died from lung cancer in 2010 in Waltham, Massachusetts .[3]
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Hofmann theorized that when woofers are mounted in speaker enclosures , the designer would have to accept that there are three trade-offs . Hofmann argued that the designer had "...three parameters that cannot all be had at the same time. They are low-bass reproduction, small (enclosure) size, and high (output) sensitivity." Hofmann stated that designers could pick two of these three parameters, but in doing so, it would compromise the third parameter.[5]
For example, a designer who wants good, deep low-frequency sound and high sensitivity can obtain these goals, but they will have to use a large speaker enclosure. Similarly, if a designer is forced by space constraints to use a very small cabinet, and they aim to get good, deep low-frequency sound, the sensitivity will be compromised (i.e., a small cabinet with deep bass would need a very powerful amplifier).
References
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^ a b c d e Ho, Vivian (11 January 2011). "J.A. Hofmann, 86, entrepreneur, Army researcher" . The Boston Globe . Retrieved 6 February 2022 – via newspapers.com.
^ "History" . klhaudio.com . Retrieved 6 February 2022 .
^ Perazella, Thomas (April 2015). "True Bass Rides Again (Part 1)" (PDF) . audioxpress . p. 45. Archived from the original (PDF) on 12 June 2017. Retrieved 12 January 2022 – via Wayback Machine .
Further reading
[ edit ] R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=Josef_Anton_Hofmann&oldid=1221299040 " C a t e g o r i e s : ● 1 9 2 4 b i r t h s ● 2 0 1 0 d e a t h s ● E n g i n e e r s f r o m L o n d o n ● F a i r f a x H i g h S c h o o l ( L o s A n g e l e s ) a l u m n i ● P e o p l e f r o m C a m b r i d g e , M a s s a c h u s e t t s ● A u d i o e l e c t r i c a l e n g i n e e r s ● A m e r i c a n e l e c t r i c a l e n g i n e e r s ● C a l i f o r n i a I n s t i t u t e o f T e c h n o l o g y a l u m n i ● U n i v e r s i t y o f P e n n s y l v a n i a a l u m n i ● H a r v a r d U n i v e r s i t y a l u m n i ● U n i t e d S t a t e s A r m y p e r s o n n e l o f W o r l d W a r I I ● M a n h a t t a n P r o j e c t p e o p l e ● D e a t h s f r o m l u n g c a n c e r i n M a s s a c h u s e t t s H i d d e n c a t e g o r i e s : ● A r t i c l e s w i t h s h o r t d e s c r i p t i o n ● S h o r t d e s c r i p t i o n i s d i f f e r e n t f r o m W i k i d a t a ● U s e d m y d a t e s f r o m A p r i l 2 0 2 2 ● P a g e s u s i n g i n f o b o x p e r s o n w i t h m u l t i p l e p a r e n t s ● A r t i c l e s w i t h h C a r d s
● T h i s p a g e w a s l a s t e d i t e d o n 2 9 A p r i l 2 0 2 4 , a t 0 2 : 2 7 ( U T C ) . ● T e x t i s a v a i l a b l e u n d e r t h e C r e a t i v e C o m m o n s A t t r i b u t i o n - S h a r e A l i k e L i c e n s e 4 . 0 ;
a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n . ● P r i v a c y p o l i c y ● A b o u t W i k i p e d i a ● D i s c l a i m e r s ● C o n t a c t W i k i p e d i a ● C o d e o f C o n d u c t ● D e v e l o p e r s ● S t a t i s t i c s ● C o o k i e s t a t e m e n t ● M o b i l e v i e w
