Originally posted by ff123 What did Citay distinguish in his volume tests?
Originally posted by ff123 There is an incredibly long thread on rec.audio.high-end concerning the audibility of speaker cable differences and an article which appeared almost 20 years ago in Stereo Review. I was finally prompted to go digging around in my garage to find the original article, from the August 1983 issue of Stereo Review.The article, by Laurence Greenhill, compares "New Monster Cable" against 16-gauge lamp cord and 24-gauge cable using double-blind methods (a hardware version of Arny Krueger's PC-ABX comparator).Three individuals (out of 11 total) were able to hear a difference (with a confidence > 95%) between the Monster cable and 16-gauge wire, probably by distinguishing a volume difference on the order of 0.16 dB (!) in pink noise. Nobody was able to repeat this feat, though, using choral music.http://ff123.net/export/cables.zipI probably won't keep it there forever, though.What did Citay distinguish in his volume tests?ff123
Originally posted by Frank Klemm What is gauge? How to transform gauge into mm²?
Originally posted by ff123 Well, I ran some simulations, and the probability that at least one person out of an 11-listener panel would get 12 or more correct out of 15 trials is 0.17. So really only one person (who score 13 correct) heard a difference with 95% experiment-wise confidence on the Monster-cable vs. 16-gauge pink noise test.However...If all the trials are combined from all listeners, that yields a score of 108 correct out of 165 total, which is highly significant (p<0.001).So, there was a difference as shown by the aggregate score, but any particular individual would be hard-pressed to show this with high confidence. That's an interesting result.ff12396% scaling is 0.35 dB
Originally posted by CiTay http://gd.tuwien.ac.at/hw-related/hwb/ta_AWG.html
Originally posted by Frank Klemm 2. When using thick cables I found that the inductivity is more important than the resistivity.It is important to hold both cores very close together to reduce inductivity. Especially fat cableshave huge inductivities because the core distance can be larger than 12...14 mm.
Originally posted by CiTay So what are your thoughts on using CAT5 patch cable (twisted pair) as speaker cable?
Originally posted by Frank Klemm Too thin. May be telephone cable: 16 x 0.25 mm² or larger.Highender should use telephone cable for their US$ xx.xxx loud speakers.
Originally posted by CiTay In theory, the thicker the cable, the higher the internal resistance, the thinner the bass will sound.
Originally posted by Frank Klemm How to compute it?I'm sure I will never learn such a table.
Originally posted by layer3maniac What in the WORLD??? This "theory" makes NO sense to me... Do you have a reference for that? My experience is JUST THE OPPOSITE!
The Maxwell Effect works at the other end of the Spectrum (bass) and isa bit harder to explain. I will not even try. Read the Paper Prof. Malcom Hawkesford submitted to AES (AudioEngineering Society) if you feel like doing a bit of seriousmathematical self abuse. The Upshot is that a thin conductor will also IMPROVE the LOW-ENDperformance. Hence the Conductor providing the widest bandwidth(measured and subjective) all else being equal is the thinner one. A thin conductor introduces a lot of resistance, giving us problems withthe Series Resistance in our Cable. So we to use for example flat, thin and wide Foil Conductors to get theresistance down to a sensible level for Speaker-Connections asimplemented for example by Goertz Cable, Sonolith and Magnan Cables.