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Old 20th Jun 2021, 11:30 am   #7
Robert Gribnau
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Join Date: May 2017
Location: Konongo, Ghana
Posts: 510
Default Re: Curved v. Straight Sided Speaker Cones

Some Philips research from 1955 which supports what Duncan wrote in post #3 (see page 241): https://worldradiohistory.com/Archiv...eview-1954.pdf
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