Paul Spencer Posted July 16, 2010 Author Posted July 16, 2010 I'd guess because they don't want to be compared just on the numbers. They want to make them more appealing than the specs would indicate.
Zaphod Beeblebrox Posted July 16, 2010 Posted July 16, 2010 (edited) http://www.simphys.com/New%20Images/prod_PDF/SP_LIT_argentofluctusHCLR_012010.pdfcan someone please comment on these? It's difficult to know where to start with nonsense like that. Gold is NOT a superior conductor to either copper or silver. Skin effect is an extremely complex topic and cannot easily be discussed in a simple web page. That said, skin effect, over a few Metres, with normal 8 Ohm speaker loads is simply not an issue. There's more, but I'd suggest that this web page has been published by some seriously ignorant people. That said, they did get one thing right: Shorter speaker cables are better than longer ones. Edited July 16, 2010 by Zaphod Beeblebrox Brain fart
humble Posted July 16, 2010 Posted July 16, 2010 how does one take measurements on ones cables? ive got several pairs and planning on making some i am happy to take measurements and publish results here
Zaphod Beeblebrox Posted July 16, 2010 Posted July 16, 2010 how does one take measurements on ones cables? ive got several pairs and planning on making somei am happy to take measurements and publish results here The usual methods are employed. You can: * Use a simple multimeter for resistance measurements, though a proper '4-wire' method will provide superior results. * A capacitance meter for capacitance. * An inductance meter for inductance. * There are also several computerised measurement systems (I use LMS) which can provide all these measurements very quickly and easily, albeit expensively. Clio, MLSSA and others can also provide useful and accurate results. All are more expensive than simple test equipment.
humble Posted July 17, 2010 Posted July 17, 2010 have you donr these on your cables? I can only do the first of the measurements you mention so I will...
Paul Spencer Posted July 17, 2010 Author Posted July 17, 2010 If I'm not mistaken, DMMs tend to not be very accurate for low values of R, the kind we are talking about here.
Zaphod Beeblebrox Posted July 17, 2010 Posted July 17, 2010 If I'm not mistaken, DMMs tend to not be very accurate for low values of R, the kind we are talking about here. Depends on the meter and the techniques. For instance: * Many high quality meters have a comparative measurement system, which allows the user to 'zero out' the lead resistance. * Using a Voltage drop system, one can measure very low resistances easily. IOW: Pass a large current through the cable and measure the Voltage drop. Using Ohm's Law, the resistance can be calculated. * Some VERY high meters have 4 wire measurement capability. That said, I would not suggest a multimeter be used for AC measurements (L & C).
Paul Spencer Posted July 17, 2010 Author Posted July 17, 2010 What about a cheapie that allows you to calibrate the leads to zero R? Are you saying that then it might actually be accurate?
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