In Reply to: Oxygen free Cables??? posted by John Kercheval on December 27, 2006 at 13:25:35:
...than the '3-nines*' tough-pitch copper that's used in things like home wiring. OF is often expressed as OFHC which means Oxygen-Free, High-purity Copper. There now are MANY-different kinds of higher (than tough-pitch)-purity copper including long-grain copper. Perhaps the best copper now available is OCC (Ohno-Continuous-Cast) copper, which is EXTREMELY-long-grain (as in single-crystal), extremely-high-purity (as in SEVEN-nines-pure) copper. Various cable compaines have their own names for this stuff; Audioquest calls theirs Perfect-Surface Copper; PS Audio PCOCC (Pure Copper by Ohno Continuous Casting). It's all better (and more expensive) than plain copper.
* The number of nines describes the purity expressed as a decimal, so 3-nines copper is 0.999-pure (= 99.9%) copper, AKA its impurities do not exceed 0.001 or 0.1 percent.
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Follow Ups
- 'Oxygen free' (sic) is merely one of many-different kinds of higher-quality copper... - jeffreybehr 17:20:29 12/27/06 (1)
- Re: 'Oxygen free' (sic) is merely one of many-different kinds of higher-quality copper... - Wayne Brady 21:03:47 12/29/06 (0)