Since we are on the subject, let me add to the "snake oil" side of the debate.
Just picked up a new power cord that was absolutely raved about in a couple of reviews. I bought it used, so the price was not as bad as buying new. I did this even though i have seen the insides of more than a few "commercial" built cords and about threw up after hearing the price. Well, this cord was no different. Even paying list price for everything, this cord has about $40 - $60 ( at the VERY most ) in raw parts. The only reason that it costs that much would be that fancy "snakeskin" sheathing and the hospital grade plug. Even though selling price of this cord is nearly half a grand, it uses standard "industrial grade" mass produced wiring in it.
This specific power cord is not any different than most of the other "tweaky" power cords that i've seen either. The reviewers might have found this out if they took it apart. Only problem is that the manufacturer GLUED, used shrink wrap and "potted" the insides of the connectors to hide their "top secret" design. Did they do this because they didn't want someone else to steal the design from them ? Or did they do it because they didn't want you to know that they were stealing from you ???
To answer your question, NO, i haven't tried it yet. Yes, it might sound different than another cord, but NO, it is not worth that kind of money. After all, ANYBODY can put "high grade" connectors on industrial grade $2 - $3 per foot power cabling and call it something fancy. The scariest thing is that this cord is considered to be a GREAT "bargain" amongst those that have reviewed and used it.
I will say that wires DO make a difference. With that in mind, there is next to nothing that a "wire company" can put together that you can't do yourself. That goes for selection of parts, ferrite's, impedance compensation networks, fancy geometries, "burning in", cryogenics, radiation treatments from plasma powered UFO's, etc... As such, i say long live "DIY" and those that are willing to learn and get their hands dirty. Death to "shysters" and those that aid them. They are the prime reason that high end is in the state that it currently is.
Why bother trying to achieve "high end results" when you can't even afford ONE cable ? Instead, the mass majority will purchase a complete system with half a dozen speakers for the cost of ONE cable. Now tell me which "components" ( one cable or an entire surround system with a dvd player, tuner, preamp, power amp, speakers, etc... ) took more research, development, parts, labor, tooling, machining, and marketing to produce ? Then ask yourself why you support "shysters" with shady business ethics ?
If you've got money to burn or throw away, that is your prerogative. Other than that, all i can say is "a fool and his money are soon parted". I've been that fool and i hope that i've learned a lesson ( again ). Most "reviewers" are nothing more than "false prophets" with most audiophiles worshiping a golden calf when it comes to wires. Sean
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PS... This is MY personal opinion and is not aimed at anyone in specific. I may not agree with you ( a LOT of you ), you may not agree with me. I'm sorry if you feel that i kicked you in the "nuts". You're more than welcome to kick me in the head and knock some sense into me with an intelligent rebuttal. With that in mind, I hope that we can still share different points of view and respect each other in the morning : )