Building a $1200 RCA Interconnect Cable


Last week I set out to build a $1200 RCA Interconnect cable using:
- WBT RCA (Copper) connectors
- Silver solder
- Solid core wire
- Shielded cable
- nylon cover
And of course the regular tools to get the job done.

As I was soldering the braid to the body of the connoctor, I noticed that it took forever for the solder to stick to the metal body; so I turned up the temperature on the solder station from 750 degrees F to 800 dagrees F. But it still took long to make the solder connection. I started to wonder why. The WBT connectors were advertised as copper connectors; and I know that scopper is soft and only second to silver in conductivity. I then took a knife and started to cut away at the body of the connector to see how hard it was. It was like cutting into steel, very hard. This is definately not copper. I then took the knife and cut away at the center pin in the connector, and sure enough that bit was much softer and easier to cut into, and also heated up quickly for soldering. I then went and got an expensive $1500 pair of cables with WBT RCA connectors and perform the same test. To my surprise it was the same result: it too had only the center pin made of a soft metal (copper I hope).

When I read description that say that the connectors are made of 100% copper, I take it to mean that the whole connector is made of copper not just the center pin. The question is: 
Is this a scam or is it common Industry Practice to use brass or other metal for the body of the RCA and other connectors and only use copper for the center pin? 

What are you thoughts.....???

almandog
What’s the indicator? 800 degrees F. That tells me you should leave soldering to the pros.
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I am curious:
What in the original post indicated that I don't know how to solder?

This is what I said:

"As I was soldering the braid to the body of the connoctor, I noticed that it took forever for the solder to stick to the metal body; so I turned up the temperature on the solder station from 750 degrees F to 800 dagrees F. But it still took long to make the solder connection."

This means that the metal casing does not conduct heat very well and takes longer to heat up, unlike copper. That's all. After applying more heat the silver solder flowed and I was able to get the job done.  And by the way, these cables are sounding great but still have a long way to go for burning in.
Comes down to how it sounds.   Cardas connectors (RCA &XLR) are not made of pure copper throughout, however they sound great.  Let your ears decide.  KLEI and Eichman plugs use a lot of plastic beyond the pure copper connecting pins and these low mass connectors also sound great. 
Where did you buy the WBT plugs from? 99.9% of all of them on the marketplace are fake. WBT has fairly soft copper alloy contacts. I never had problems soldering to any WBT plug ever and I’ve used them extensively for over 20 years now. I use professional Sn62 solder.
I have been soldering  for many years, and I definitely know how to do it. I did complete the soldering on the WBT RCA connectors for these cables with no issue. I just thought the entire  connector was made of copper.

 I also have expensive RCA cables with whole RCA connectors made of copper.

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From your description of attempted soldering, it doesn’t seem like you know what you’re doing. Leave it to those who know how.
I know this question was coming. 
Answer: It is cable, I can charge anything I like. Just look around here, everyone else is doing it.
Pure copper is never used when you need a strong or high tension metal, such as the ground shield on an RCA cable that needs to grip the RCA socket tightly.  It is just not strong/stiff enough.   Furutech actually specifies the type of metal used for the housing of the RCA connector (such as stainless steel or copper alloy).  In Furutech's GTX outlets, they do use pure copper for the internal contacts, but they also have a steel spring to help with the clamping strength when a plug is inserted into the socket.   Other manufacturers may not necessarily state the metal, but it's highly unlikely that any RCA housing is made from pure copper.