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Buddha
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Needing a chemistry lesson. What's 25K gold?

Aloha,

Been reading through the July issue and came across Mike Fremer's mention of 25K gold coils on the Clearaudio cartridge.

Is that, like, similar to "Six 9's" copper or something?

I always thought 24K was "pure," so when did the upgrade package take effect?

*Hoping that this is not some new Hi-Fi designation, otherwise we will soon have 27K Machina Dynamica gold.

Monty
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Re: Needing a chemistry lesson. What's 25K gold?

25K gold is audiophile approved 24K gold. You get to charge more over spot for it.

I think you are probably right about the six nines copper kinda thing.

Jeff Wong
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Re: Needing a chemistry lesson. What's 25K gold?
gkc
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Re: Needing a chemistry lesson. What's 25K gold?

Yes. "Spot" is "cash" or "good delivery." "Three nines fine." It is the delivery specification for the futures contract at the Comex (100 oz bars) or London (400 oz bars).
24K is a jewelry spec and is less fine than three nines fine. 24K is undeliverable on any major exchange in the world. 25K could be 6 nines, a figure of speech that simply means "purer than 24K." Or it could be 3 nines. Gold is easily alloyed with Rhodium, Platinum, Copper, or silver, so I guess the key point is not whether it is 99.999 or 99.999999, but what elements are alloyed with it beyond those last 3-6 decimal places. Anybody out there know? Mikey?

ampnut
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Re: Needing a chemistry lesson. What's 25K gold?

Shouldn't Mike Fremer be answering this ?

Buddha
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Re: Needing a chemistry lesson. What's 25K gold?

OK, question answered.

Typo.

Either that, or Clearaudio completely ignores the quality of gold Clifton tells us about and uses crappy old 24K gold in their 8,000 dollar "Goldfinger" cartridge.

Goldfinger cartridge

I'm betting typo for Mr. Fremer's review of their 2,000 dollar Concerto.

That 25K had me going there for a minute, though!

mjalazard
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Re: Needing a chemistry lesson. What's 25K gold?

I wonder if Ian Fleming's estate receives any royalties from Clearaudio for every Goldfinger cartridge sold?

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