Copper purity in normal cables and expensive audiophile cables?
 

What is the copper purity in normal cables and expensive audiophile cables?

I know Shunyata claims 99.99% pure copper, and Nordost claims 99.99999% pure copper. Seems like there is a wild of difference between purity here.

What does Audioquest have? How about the Blue Jeans cables like Canare and Belden?

???? I wouldn't call that a 'wild difference'

That's called creative advertising not a "wild difference."

Let's pretend for a second that this is drinking water. Percentage wise how much lead and arsenic will you tolerate out of the two percentages? Huge difference between 99.99 and 99.99999.

I don't know of any sonic difference between. 90%, 99%, 99.99, and 100%.

Shunyata advertises 99.99, yet belden has a cable that's 99.995 but it's hard to find.

In an air filter that tries to capture 100,000 dust particles: 99.99999 will release one dust particle whereas the 99.99 will release about a 1,000.

Care to contribute or shall we argue semantics instead?

Here is Shunyata's claim.
I'm not saying this is will sound bad, I actually have an order I'm waiting on from Shunyata that hasn't come in yet. But after reading around "4 nines" seems pretty common, but to justify that it's only the highest purity of copper available" I'm curious what's different about normal copper from any source.

What would you like us to contribute in these multiple "cable" threads other than to go back and forth about individual manufacturers advertising claims. That is why most of these threads end up closed.

If God himself gave you the “perfect” cable, you may not like it. It’s up to you to find one that you like. If they all sound the same to you, choose the cheapest one.

Agree

+1 on that!

There is no such thing as 99.99999% copper, this is just marketing-driven audio industry marketing hype. This specification is not used in the copper manufacturing materials industry because it doesn't exist.

The two meaningful purity specifications that are actually used in the copper manufacturing industry are CDA-101 copper and OFE Alloy 101 (or C10100), which is the highest grade of copper with a minimum 99.99% purity and a conductivity rating of 101% IACS.

Shunyata presently uses OFE Alloy 101 for a number of their products, as well as their Ar Ni alloy.

The reason Shunyata provides a specification of 99.99% purity is because they use OFE Alloy 101. They provide the 99.99% specification because they are a scientifically-based, data-driven company that doesn't subscribe to meaningless and non-existent specs hyped by the audio marketing industry.

Fun facts about copper (I feel like Sheldon Cooper)...

https://www.copper.org/education/c-f...cts-print.html