Voraratc, The "S" not only does not stand for "steel", it also does not stand for "Silver". Most of the silver-wired FR64Ss with which I am familiar have a decal on the arm tube that says "Silver inside", or similar words. (Mine does.) Other than that, Dertonearm has told us the difference between an FR64 and a 64S, see above. Dertonearm is probably the most expert in the Western world on FR64 and 66 tonearms.
When I first saw this thread a year or more ago, I wondered whether the black FR64 could have been an FR64fx. All of those were black, or all that I have ever seen. The fx is made of black anodized aluminum (I think) for a lower effective mass compared to 64S and 66S. They are readily available, if one has patience to shop. Apparently, it's not an fx.
When I first saw this thread a year or more ago, I wondered whether the black FR64 could have been an FR64fx. All of those were black, or all that I have ever seen. The fx is made of black anodized aluminum (I think) for a lower effective mass compared to 64S and 66S. They are readily available, if one has patience to shop. Apparently, it's not an fx.