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Eichman RCA's - what makes them so good?

I've just installed a set of these on a silver interconnect I have and the difference in details was very noticeable. The image has become very focussed with more depth and the micro details have also improved consideraby.

I realize the silver is probably responsible for the improved resolution, so is the design responsible for the improved imaging? Will the copper give me the same image improvements?

Has anyone out there tried both the silver and the copper (or gold plated copper)
- if so what difference did you notice?

Alternately - if you have only used copper
- what were you using previously?
- what differences did you notice?

I am using these on my analogue stage, which I thought was pretty good - until yesterday.

I'm thinking of trying the gold plated copper on the digital side - or should I just opt for the silver - the curious side of me wants the copper, just to see what the differences are, but the pragmatic side is saying that if I'm not happy - I'll need to replace them with the silver :-)

If it's the design of the rca that's more responsible for the improvements' then going for the copper would be more cost effective

Any feedback appreciated - thanks
williewonka
Post removed 
zd542
5,339 posts
 
Williewonka,

I used to have the same amp. Back in one of your early posts, you said that you converted a pair of rca IC's to din. I was told you couldn't do that by the dealer because the din cables that Naim uses has more conductors. I believe he said there were 4. The only cable that they knew of that would work was the Nordost flat line cables because you can divide the conductors up however you need to. It made sense to me at the time, but you've obviously proved them wrong. If there were 4 conductors needed, how were you able to make the cable work properly?
williewonka OP
3,110 posts
 
Zd542 - I was using Stager Silver Solids - each IC is a twisted pair (signal + neutral) - it has no screen. The wires are very thin so it was easy to put two cables (for L and R channels) into the DIN and have the RCA at the other

Using a conventional screened cable would have been very difficult - unless you use a cable with two identical internal conductors and then strip the sleeve and shield back about 2-3 inches and just connect the internal conductors.

Another approach would be to use the high quality conductors from cat5/6 network cable. They are small enough for the DIN plug. Simply braid them in order to reject any RFI.

Hope that clarifies things
zd542
5,339 posts
 
Thanks for the info. The only question I still have is how many conductors do you need to make the Naim/din style cable? Is it 4 like the dealer told me, or is it 2-3 like a regular cable?
williewonka OP
3,110 posts
 
ZD542 - if you are going DIN to DIN you only need 3 conductors i.e. L signal, R signal and a neutral

If you are going DIN to RCA like I did then you need 4 i.e. signal + neutral for both L and R channels

The NAIM pin diagram can be found in the manual...
- ch1 is left
- ch2 is right

Hope that helps
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