SlickSnake
Diamond Member
- May 29, 2007
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Originally posted by: wetech
Originally posted by: SlickSnake
BTW, if you link an article in the future, try to link the first page of the article. I had to go back and look at the article linked again to find the washed out light blue links to the original Face off articles posted in 2003 or there abouts (since Face off 2 was in 2004).
You can't just pull a factor out of thin air, like weight, for trying to compare various types of wire, instead of lengths. I do not buy wire based on weight. You take the same lengths of wire and do a direct comparision of the results. The more they muck up a direct comparison, like rewinding/unwinding/seperating wires the more they mess with the test result outcomes. And then on top of that trying to calculate a stranded wire weight ratio into the formula, the more they mess up the true side by side test results.
The most interesting part of the various faceoffs was the part where they noted the corrosion on some of the wires due to reactions with the jacket and the possible effect on the abilty of the wire to perform properly. I can personally verify this negative effect.
What do you mean "pull a factor out of thin are, like weight"?
They are using the "weight" factor as the sum of all the other factors together to help make a confusing mishmass of figures they use in their graphs.
Speaker Face Off 2 previously conducted by Audioholics provided a lot of meaningful information, but no clear idea of which was best. While we are waiting on Gene to finish his cable analysis in Face Off II, I thought I would assign ranking based on his measurements using my linear interpolation method. So, here before you, I give you my opinion on which of these cable is the best. Granted, my opinion is worth is weight in copper (I would have said gold, but the resistance is too high, definitely not silver as it tarnished too easily). All of those ranking numbers contained in tables 2-5 are put to use right now. But first let us discuss weight factors. I have measured three electrical parameters of each of these cables (Resistance, Inductance, Capacitance), and know from first hand experience how much each cable cost me to make. So now we (in the royal sense) decided which factors are the most important based on an educated estimation their impacts may have on system stability and frequency response variation. Under different circumstances, each parameter measured may rise in importance. For very long cable runs all three may be of equal importance, but I think we should just consider normal runs of less then thirty feet (since the longest cable I measured was 26 feet). Based on this, we assigned rankings for each metric with a certain weight function based on perceived importance. Therefore, Resistance is weighted at 41%, Inductance is weighted at 32%, Capacitance is weighted at 27%. These technical factors are weighted at 60% and Cost is weighted at 40%.
I also could not see in any of the Faceoffs where they made any attempt to standardize the various lengths to get a performance per foot average, either. Cost per foot, yes. Specifications per foot, no.
The entire study could have been a lot more straightforward based on length than it was. Since we don't know the lengths of all the cables involved, we can't trust the results, either. The lengths should all be posted along with all the other results in the graphs, and not left to conjecture or having to wade through 3 different faceoffs to figure it out, when it's revealed at all.