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In Reply to: RE: Gold toxic to silver? posted by rp1@surfnetusa.com on March 21, 2015 at 21:56:04
Who uses a gold-silver alloy? Many use a mixture of gold and silver strands, but very few use an alloy, IIRC. I know Bybee uses a gold silver alloy (18 K, IIRC), claiming that a specific mixture creates a crystalline structure which favors electron transfer ( not necessarily lower resistance as the total resistance is closer to gold)).
Gold became popular in the 70's because manufacturers were claiming that gold PLATING reduced surface tarnishing and corrosion and thus enhanced contact.
Also remember higher resistance may not necessarily be bad. A.J. VanDenhul uses carbon fiber conductors and check out the resistance of carbon fiber! This resistance is constant and thus a group delay is imposed on the entire signal, so in reality no real harm is done, at least not over short distances. Of course the couple thousand miles of transatlantic cable may be different and have different requirements. Most transatlantic cables do have booster amps embedded in their line however.
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Never seen a cable with a mix of pure gold strands and pure silver strands. All of these manufacturers - Siltech, Crystal, Mundorf - advertise a 1% gold 99% silver alloy, where the gold is "injected" in (obviously they are adding 1 gram of gold to every 99 grams of silver into a crucible, putting it into a furnace, then proceeding with casting and drawing). There are a few cables with pure gold wire and only gold (Pear Cable) but the silver/gold stuff is an alloy mixture.
Carbon cables baffle me. Sure, you can do it...but...why...
To be fair, I've never tried one.
Ahhh..haven't kept up with many of the manufacturers you list. I did try early Siltech which used a mixture of silver and gold strands however. Still have a couple of power cords.....
In their defense, I do not recall them ever claiming the gold lowered resistivity.
Most cable manufacturers check their cables for three parameters:
resistivity
inductance
capacitance
Of those three factors, I believe the last two are much more important sonically, and generally more due to wire configuration than to alloy composition. Since all wire contain a mixture of these three measurable parameters, often times the ratios of the mixture is the primary determinant of the end sound
Of course there are other factors, but that is another subject. Resistance is but one factor. The QSC amp manuals had a chart of the influence of resistance on power loss. It is surprisingly low unless you run very long distances ( OK, transatlantic cable runs certainly do qualify) or very small gauges
They don't put a lot on their websites. But there's been lots of reviews they've authorized saying that the use of gold alloy "enhanced conductivity."
Mundorf think that SilverGold alloys are pretty good and even exceptional... Supreme SilverGold capacitors, SilverGold cables.
It's worked pretty well for them. You can do anything you want as a business to reduce the electrical performance of a cable or part, then say that this modification increases the subjective benefits of the cable or part. The question is where does it end. The answer is putting photographs in your freezer to boost listening enjoyment.
Silver and Gold are friendly oxidizing metals and perhaps as a SilverGold alloy remain quite linear, maybe... or the skin effect is quite good, maybe... or the dielectric effect is less, maybe... or perhaps Gold is toxic to Silver but peoples ears seem to like the the combination, maybe :) Definitely costs more and how does SilverGold sound. Best you buy some and tell us about it! If you can't afford the asking price then don't worry about it, hopefully someone else will and tell us all about :)It is a bit like the resistor debate... carbon, tantalum, metal oxide, metal foil, bulk metal foil, nude, wire wound... which one to use and when!
Edits: 03/24/15 03/24/15 03/24/15
silver, then gold have higher electromotive force effects over copper. That is with increasingly larger atoms, and valence shell they can release more electrons.
I've experimented with simply hanging a gold, say, ring on an IC end and you can hear a difference. You shouldn't hear any change in reality
One problem with using gold-containing wire (or other gold parts) is that the gold can poison any solder joints and make them unreliable long term. I understand that NASA won't accept any gold or gold plated items that need soldering.
Also see this
http://journals.cambridge.org/action/displayFulltext?type=1&fid=326392&jid=MAM&volumeId=11&issueId=S02&aid=326391
Very interesting paper.
That's a great idea with the gold rings. Have a girl over, impress her with your tweaked out stereo, and she won't even know you're married.
Carbon cables - well they don't work as speaker or power cables (not surprisingly) but they can be very good for interconnects if implemented correctly. One thing is that carbon is immune from skin effect. Why? If you do the math you find that the skin depth for carbon is of the order of many inches (due to it's resistivity and permeability).
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