“November 24, 1980 Issue Viewer.” Vault, https://www.si.com/vault/issue/70915/15. Accessed 18 Sept. 2019. In 1980, Koss Corporation put an ad in a Sports Illustrated Magazine with Mona Lisa wearing headphones and captioned, “Ever wonder why she’s smiling?”. They were advertising their new Stereophones. Koss claimed that it was a fraction of the […]
Daily Archives: September 13, 2019
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