|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
207.62.246.184
According to Liang Chi Shen, a very energenic and peaceful fellow and his buddy Ju Au Kong, king in my opinion since there seems to be so much misinformation,one of my least favorite things in the world, in the book "Applied Electromagnetisn" 12awg solid wire losses about 1/10 of a db above 20k. Now in my old age and my new dogs old age we can live with that. Read it and weep, thin wire worshipers
Follow Ups:
The "skin effect" is a result of the conductivity of the conductor. Have a different conductor? Skin effect is different. And the better the conductor, the shallower that skin effect.
I am not sure an electromagnetic text would talk about losses, but it would likely take about the decay of fields as you go deeper in a conductor, and how many skin depths deep something is - since it is an exponential function, and not uniform in current density.
The likely biggest effect is the change in inductance since the electricity will have the majority of the charge gathering towards the surface as you get higher in frequency.
Incidentally, this is why Litz wire tends to have fairly uniform conductivity over frequency, and is the principle under which Audioquest and Kimber work (though they approach it differenlty).
It is also why silver conductors can be a little thinner than copper - silver has a higher conductivity than copper.
I'll leave it to the readers to figure out if it makes a sonic difference, but a single thick wire will have different inductance over frequency. A thinner one will have higher inductance, but likely will change less over the same frequency range from DC to whatever upper limit you care to measure. Litz wire, if selected carefully, will maintain pretty uniform conductance over a wider range which is why it was a popular conductor until they invented coaxial cables.
And coaxial cables use geometry to balance L and C over a very wide frequency range, and have a uniform propagation constant.
And nearly every "high end" cable maker draws from one aspect or approach surrounding this or others in order to make their cables.
So while your statements are somewhat simplistic, it's not that applicable in many cases. If it were simply resistive losses through cable it all would be a whole lot easier. And RF and Microwave frequency engineering would be tons easier ...
============================
Hey! I have a blog now: http://mancave-stereo.blogspot.com or "like" us at https://www.facebook.com/mancave.stereo
I was never making or trying to make the case that it's that simple. Jon stated in a previous post that the roll off was 6db per octive. A chart shows that 12awg starts rolling off at 4150hz. 6db plus more roll off from other factors is likely to be an important factor in thicker wire. at less than .3db(point) or so at 20k I couldn't care less. When I listen to thicker wire,up to 16awg in diy mag wire parallel interconnect I do not hear problematic phase shift or roll off. I hear fatter more natural timbers, smoothness, deeper richer bass, less annoying sibilance. If it were so easy to get a commercial interconnect that I can live with I wouldn't be doing this. Most use silver solder and or silver plated connectors, some stranded wire. None of these thing seem to suit me. Of course there is more to wire than skin effect! Tweaker
I do not mind folks quoting some source. Except quoting one source and then deciding that is Gospel is pretty lame.
If you woould have merely mentioned that source of info, and said it seems to contradict the others presented... No problem.
But your almost Kamakazi attack style is hilarious.
So thanks for the giggles.
Wire and dielectrics plus geometry far more important.
type of solder and connector.
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: