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IsoTek, a company based in Hampshire, England, near Winchester Cathedral, has been in business for over a decade. It has tried to live up to its Gothic neighbor’s imposing reputation by producing what the British like to call “serious kit,” principally by focusing on the foundation of any system—the quality of the power entering your home. As anyone worth his or her audiophile salt knows, there are oodles of companies seeking to purvey products that will allegedly boost the performance of your stereo by conditioning, regenerating, or some other “-ing” the electricity powering it. Some are flapdoodle. Others aren’t.

IsoTek belongs to the latter camp. After Kevin Wolff of VANA Ltd. visited me to pick up the Vienna Acoustics loudspeakers I reviewed for TAS, he also dropped off a box containing an IsoTek EVO3 Sigmas power conditioner. Having used many such devices in the past—ranging from PS Audio to Equitech, not to mention dozens of different power cords—it wasn’t a hard sell to get me to listen to one more. I wasn’t skeptical so much as agnostic, particularly since I’ve gone to some lengths to arrange for the optimal grounding of my stereo.....continue reading here

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March 27, 2018 — Michael Babb