Playback Distribution at SouthWest Audio Fest 2026
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Bandwidth Audio at SouthWest Audio Fest 2026
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MSB Technology at High End Vienna 2026
Dutch & Dutch at High End Vienna 2026

LATEST ADDITIONS

Copyright Office Lists New Exceptions to the DMCA

On November 22, the Librarian of Congress issued a&mdash;take a deep breath&mdash; <A HREF="http://www.copyright.gov/1201/">declaration of exemption</A> from the prohibition against circumvention of technological measures that control access to copyrighted works. In other words, the LOC decreed that six classes of "non-infringing rights" were exempt from the Digital Millennium Copyright Act (DMCA), which criminalized "production and dissemination of technology whose primary purpose is to circumvent measures taken to protect copyright."

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Hot Stuff: Loudspeaker Voice-Coil Temperatures

As Hans Christian Oersted, the Danish physicist and founder of electrodynamics, discovered in 1819, an electric current passed through a wire generates a magnetic field. Place that wire close to a permanent magnet and the interaction of the two fields will generate a force. That, in two sentences, summarizes the operating principle of the motor that energizes every moving-coil drive-unit in millions of loudspeakers worldwide. It sounds simple, but&mdash;like everything in audio&mdash;it isn't.

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