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All items tagged with THOR (2)
Frequency Delay Dispersion
March 21, 2017 by Dennis Colin

Frequency Delay Dispersion

The phase nonlinearity of most second- and higher-order speaker crossovers is illustrated with the step response of cascaded all-pass networks. Audibility issues are discussed. The audibility threshold depends on many factors; reports vary from about 100μS to 2mS. A sufficient amount, though, is certainly audible. This article was originally published in audioXpress, November 2007.
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THOR: A D’Appolito Transmission Line
July 23, 2016 by Joe D'Appolito

THOR: A D’Appolito Transmission Line

One of the most important speaker building projects published by audioXpress, THOR was designed by Joseph (Joe) D'Appolito, who is world-renowned for his pioneering work on MTM-based (mid-tweeter-mid) loudspeaker configurations. The original THOR transmission-line design was published in May 2002. For this online publication, audioXpress kept the original article unchanged, which has since been updated with availability of the original Madisound/SEAS kit and the publication of a complete kit project on the SEAS website. Read the complete article here.
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