Read this:
"Dynamic Filtering is the result of our studies. Virtual Dynamics uses applied science to displace unwanted mechanical frequencies from the path of your audio system."
1) which studies?
2) which science?
3) how?
"Dynamic Filtering is as important to the design of our cable as the electrical principles we have incorporated."
1) which principles?
"Our new Signature line of products differ from our Reference line due to further applications of Dynamic Filtering. The difference in the level of this mechanical application helps us to create a cable with improved sonic characteristics."
1) what type of applications?
2) define "further". Is "further" quantifiable?
3) define "level" . This must, by default, be quantifiable (besides the price tag, of course).
4) which sonic characteristics in particular?
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I am NOT against this product, for I have never auditioned it or heard comments on it before reading this thread.
However, I used to make my living as a QA officer for a regulatory agency and part of my job was dissecting text similar to the above (SOP's from private water chemistry labs submitting their protocols to us for approval). When a text like the above is dissected and questions posed the other's side credibility is at stake...
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Personally, I don't think power cords should perform double duty as filters. They're just, by definition, power cords...