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Old 04-12-2019, 08:48 PM
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Join Date: Aug 2010
Location: East Bay, CA
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Very interesting video on a demo by Grant Samuelson on how a single power cable can significantly reduce AC line noise; filmed today at AXPONA.

https://youtu.be/KWxWbUm8wV8

From the Stereophile blog: "The device Samuelsen is using—the noise maker—takes broadband A/C noise and makes it audible. The noise you're hearing is coming out of the hotel's A/C receptacle. When Samuelson plugs a noise-absorbing power cord into a spare receptacle, the audible noise vanishes because that broadband electronic noise has been so dramatically reduced. (With its orange color, this power cord is intended for the medical industry, but the same cable in a different color—blue—is available for your hi-fi."
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