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Michael Chang, engineer and stereophile, designed the Lightspeed Powerline Filters after being disappointed with the powerline filters available on the market. Mr. Chang's design eliminates AC contamination without the use of lag/noise inducing transformers or coils. Pleased with the results of his design, Mr. Chang decided to offer his new filter design to the public.

Chang Audio Corporation, located in Sylvania, Ohio, began manufacturing powerline filters during the late summer of 1991. A small staff of technicians hand assembles and tests each unit from quality parts before it is shipped out. The combination of this care in craftsmanship, with the effectiveness of filtration and the units' low cost, has won Chang Lightspeed Powerline Filters acclaim and buyers worldwide.


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