ODP: copper cable

[Martin Czech]

> >Advisor that has cables for prices as high as $12,000 (that's 12
> >thousand US dollars for a speaker cable that reaches across the
> >room). 
> 
> I tried to stay out of this.. but, I've seen a MAINS CABLE of
> oxygen-free copper with 'hospital grade plug' for $700 ;-)
> 
> paul 'zip cord' perry in cold wet melbourne Australia
> 

So far I heard only jokes.

I also think that there is a lot of weird stuff going on, just making $
from the ignorant.

But my original mail was no joke, I just wanted to know what physics
says about crystals, grains and impurities in conductive material.

I do not think that there are audible effects, but are there any
measurable effects?

Skin effect: I have to check back at home, how deep is the conducting
"skin" at 20kHz. I'm not shure if the decrease in conductor area is
neglegible, but I think this would not be audible.

If those people who buy "audio" cables for 10k $ and more could 
see that the power transistors of the amplifier are bonded with 30-50
um gold wire....

m.c.