Michael: I see no problems with bringing other manufacturers into question in terms of UL type acceptance, etc... BUT naming names can be a touchy situation.
I've seen some cords that would have NO problems being UL approved and i've seen others that are fire hazards waiting to happen. The funny thing is that, many of the cords that would easily meet UL spec's do so because they are nothing more than "standard" power cords wrapped in "snakeskin" with good quality connectors on them. I guess that the manufacturers include a quantity of "snake oil" along with the "snakeskin" at the prices that they charge : )
Other than that, i agree with your comments about the "quality" of AC being more important than the "quantity" in most cases. Obviously, the one major exception would be high powered amps, especially when coupled with low impedance, low sensitivity speakers. In such a case, a "current funnel" would work best : )
Given the "rebuttal" that you've provided, i would suggest amending your website info to state something to the effect of "Our Carbon Source cord is optimized for use with devices drawing lower quantities of current i.e. sources ( as the name implies ), preamps, etc... These devices are typically more sensitive to the quality of power being delivered to them than other devices that require greater quantities of current that vary on a dynamic basis. As such, that is why we make another cord that is designed to deal with the heavier, dynamic loads that an amplifier consumes." I think that you get the idea.
Other than that, I think that you and Corona should go into business together. You guys are great at giving nothing away in terms of intellectual properties or actual design criteria : ) Sean
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