question on pwr cords

"Once you go beyond 1.5m...."

Nsgarch, Can you explain why that is so? Are there any studies supporting this or is is it an anecdotal thing?

What would the aural differences be between (lets for the sake of discussion say) 4 meter lengths of 14 gauge, 12 gauge and 10 gauge cable?

Got a question for the 'power cord' experts. Is perhaps the reason that I have not been able to hear a meaningful difference in different heavy guage PC's due to the adequacy of the power supplies in my amps, pre amps, etc or is that not an issue?

Tplavas,

I have to say that I'm amazed at your aural accuity! Just how does the difference that you can detect between a 1.5 and a 2 meter PC of ths same brand and construction manifest itself? What is it that you hear that is different? Do you think that this observation is universal, that is it applies to all amps, or just yours?

I'm facinated.

Tplavas, I wasn't being sarcastic, but I will comment on your last sentence.

It is not, or at least IMHO should not be, a matter of whether or not one 'believes' that PC's make a difference. A person should simply be able to clearly hear a difference if one exists. I've never been able to clearly hear a definable difference and I'm always interested in how folks who do hear a difference describe that difference.

That way, next time I try experimenting with PC's I know what to listen for. I know cables and IC's can sound different depending on design and usage, why not PC's. I just haven't heard it, yet.

Tvad, Thanks for the advise. I do just that but I think that the changes might be subtle enuf to be obscured by the 2d order harmonics of all those tubes in my systems. Besides its more fun to change tubes than PC's. :-)