Propeller Head Plaza

Technical and scientific discussion of amps, cables and other topics.

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May I suggest you read more than talk empty ???? (long)

Posted by cheap-Jack on April 12, 2006 at 09:36:32:
Hi.
One should learn more about cable before deafly denouncing its sonic difference.
(1) Conductivity of the cable conductor:
It depends on what metal used to build the cable conductors. Copper of commercial or industrial normally goes up to 98% & silver 99%.
But for audiophile use, some cable makers managed to purify the copper purity to 99.9999% (which is what I am using for my speakers)
Believe or not, one hi-teck cable maker announces its pattented low-cost copper refining technology capable to achieving incredibly 99.99997%.
(2) Impurities:-
oxygen is a PITA when existed too much in the copper metal, which will oxidies the metal to form non-conductive copper oxides.
Also, other metal impurties, like iron, lead, antimony, arsenic, sulphur, & aluminum. etc. These impurities will cause electron
path diversion or speed slow-down.
Ideally, all these impurities should be removed so that only pure copper there to provide a homogenous flow path for the signal electrons.
(3) Modular structure:
Theoretically, less crystals formed inside the conductor metal less crystal molecular boundaries or skins for the signal electronics to go through, faster the music signals pass through the conductor.
Less time lag, less phase distortion, therefore closer the music sound to its original.
But standard industrial drawing of the copper wires is to force the molten metal flow through a COLD die. Too much stress on the molten metal going through the cold die will form many crytal structures inside the drawn wire.
Industrial grade copper, like those lamp cords & many off-the-shelf power cords availabel cheaply from the stores, got thousands of metal crytals inside the cable. More molecular boundaries to slow down the electronic flow, worse will be the sound.
A hi-teck cable maker claims to be cable to drawn the copper wire into one very very long crystal with its patented wire casting process. The average crytal length is up to 125 metres vs 0.02 meter length of a 99.99% oxygen-free high conductivity (OFHC) pure copper.
Electronic mcirographs show the different molecular structures.
Of ocurse, the choice of insulation compound of lowest dielectric contants, e.g. Teflon & foamed PE, is a crucial factor.
Effective geoemtric ways of winding the group of stands of conductor wires should be used to reduce the inductance & capacitance of the cable to mininum.
All these contribute to the sonic difference of a cable. If one claims there is no sonic dfference among different way of building a cable, so be it amen!
c-J