speaker cable myths and facts

Status
Not open for further replies.
I am unsure where G*d comes into this...
Because the word has no definition. A royal way for believers.(refer to Wavebourn"s answer.)
If any, like 'God is infinite' ( no limit), you can argue of his non existence, as the only thing witch makes us able to tell something exists is to can see and measure the limits witch separate this something from everything else around.
Or the contrary, because 'infinite' has no common sens.
It is in connection with this thread, our attitudes with science (measurements), feelings (memory), sound (The moral part, good or bad).
As far i'm concerned, i prefer to lie on things i can share (measurements) and explain (accordance to physical known laws) than on master chief's cooking expertise (feelings ) witch can produce Monday a fantastic dinner and Tuesday a bad one.
May be i will fell my wires will, hum, " sound better" after i immersed them in hot pea soup, i will never try.
Life is soooo short and so many different sort of liquids.
 
Last edited:
cryo-stuff

That's sorta different than the cryotreatments I was talking about (which are claimed to alter and improve all sorts of things), but nonetheless interesting.

yeah... I know.... hence all the emoticons included...😉😉

guess the believers never heard of the Arrhenius equation r = A exp (-QA/kT)
or what it's implications are, eh?

John L.
 
I've mentioned it a few times to no effect. But there's certainly the possibility of non-Arrhenius processes, especially macroscopic mechanical ones, not dissimilar to your example. In many areas (not just audio), claims are made, data is implied, but when it's time to put up what ya got, all we get is the sound of crickets.
 
Speaking of crickets:
The other day I was doing some testing by high pass filtering white noise. High pass at 12Khz, 13KHz, 14Khz and up. What does white noise HP filtered at 12Khz sound like? Crickets! Very homogeneous crickets-yeah, but a lot like insect noises.

Super OT, I know. But fun. 😀
 
My S&L measuring machine has as one of it's signal modes "chirp". Built in cricket :cubehead:. Very good signal for "measurements by ear", seriously, and real crickets may be even better. I can only give a subjective opinion about this, but dry, raspy sounds are the best to identify time smearing. It is the sort of thing I can hear, but not measure.
 
Here is white nose HP filtered at 12Khz, 4th order. This MP3 is not quite as good as the uncompressed file, but it's much smaller.

Be careful! This contains a lot of HF energy. Your tweeters may not be happy if you play it loud. RMS is -16dBFS
 
Hi,

I merely pointed out my consternation at the lack of rigor involved with respect to actual testing and reporting of the electrical characteristics of the wires being compared.

The equipment at the university was quite good, so if "within experimental error" this would be the error of the bridge. Do you really think that people who make the effort to get time on an Electron Microscope (which really is not an easy job) are going to measure LCR with $5 Radio Shack multimeter?

The whole experiment goes back to first few reviews of "cryo treated" cables in the UK Press. I was still at the University with my studies for my 2nd degree then.

It is also worth noting that what some vendors fashionably refer to as "Cryo" treatment is in fact temperature cycling that involves various cycles of heating and cooling and quite possibly not as low temperatures as the experiment I mentioned did. So results may be different.

For all I can tell and all I know about metallurgy (which is not a lot) copper has a crystal structure, as has silver and the crystal structure can be altered by various temperature treatments. If this makes an audible difference and if the results are preferable or not would have to be established.

Ciao T
 
Here is white nose HP filtered at 12Khz, 4th order. This MP3 is not quite as good as the uncompressed file, but it's much smaller.

Be careful! This contains a lot of HF energy. Your tweeters may not be happy if you play it loud. RMS is -16dBFS

Where?

Looks like you forgott to attach the file.

I have a Windows computer, I will try with Audacity software as soon as recover it from the recent Trojan Horse Squad attack.
 
Hi,



It is also worth noting that what some vendors fashionably refer to as "Cryo" treatment is in fact temperature cycling that involves various cycles of heating and cooling and quite possibly not as low temperatures as the experiment I mentioned did. So results may be different.

For all I can tell and all I know about metallurgy (which is not a lot) copper has a crystal structure, as has silver and the crystal structure can be altered by various temperature treatments. If this makes an audible difference and if the results are preferable or not would have to be established.

Ciao T

This is nonsensical wrt stating the obvious...

guess you're not interested in reality of what Mr. Arrhenius would have to say, then... ever here of exponential dependency??

John L.
 
The equipment at the university was quite good, so if "within experimental error" this would be the error of the bridge. Do you really think that people who make the effort to get time on an Electron Microscope (which really is not an easy job) are going to measure LCR with $5 Radio Shack multimeter?

As one of those "people," sure, why not? SEMs aren't very good at measuring LCR.

If the LCR are within the range of the meter, that's appropriate. I use something slightly better, but still cheap. It gets me accurate results as long as I'm not trying to measure ridiculously small values, in which case the measurements aren't relevant to audio.
 
http://www.pearcable.com/files/PearCable_FrequencyResponseComparison.pdf
This graph shows how (and why) this cable is, indeed, very "danceable". The other ones have a -6db loss at 20 000hz of "Significant musical signals".
To measure-it, you need to DIY your "Significant musical signals meter".
as long as I'm not trying to measure ridiculously small values
Did-you notice that measuring ridiculous small values need ridiculous expensive equipment ?
 
Last edited:
A CCS providing switched (and accurately calibrated) outputs can be built up from stock parts costing just a $1 or so.
The voltmeter becomes the two extra points for the 4point measurement.

Passing that accurate current through the DUT gives a very good estimate of the resistance using Ohm's law.

Was there an earlier post where a Member suggeted this technique?
 
Status
Not open for further replies.