Direct Current on an AC line will make toroidal transformers hum. Sometimes they rattle and hum. Oh well. There are several circuits out there that claim to eliminate the DC from AC lines. DC becomes a problem when it exceeds 1 volt. We have developed a Vesuvius power cord that includes a heat-sinked with DC blocking circuitry to help eliminate this troublesome artifact of poor power generation. What is even more interesting is that in listening tests, we found that the inclusion of this circuit actually increased dynamic “slam” and detail in the music. I believe it’s a result of the theory of unintended consequences, or the travels of the Three Princes of Serendip. This is not what we were looking for, but we’ll take it. Reducing DC and increasing dynamics. The Vesuvius dcB has a long and a short portion connecting to the heat-sinked box. One has the AC plug and one has the IEC connector. The short portion is 2 feet and is available with either the AC plug or the IEC connector. The long portion is 5 feet. Both portions connect to the box with Neutrik Powercon® 20-amp rated connectors. Our thought is that most folks will want to have the box on the floor beneath the AC receptacle. Some may prefer the opposite. Your choice.
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