Better XLR/RCA adapters


I know, I know, that's not audiophile way, but I might have to temporarily use them. I heard that Purist Audio is considered the best by some but they are $500 pair, and I don't want to spend $1k on adapters.
So what should I get? Cardas ? Specifically, I would use XLR cables and the current equipment is all RCA.
inna
I am using Cardas on a SACD player from XLR to RCA. It sounds OK. I am not using it on my best source though.
https://www.parts-express.com/search?keywords=rca%20to%20xlt%20adapter

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I paid 10.00 usd for copper, the above are nickel or rhodium. 4.50 each LOL 500.00 got to be kidding me..

I can get a package from China in under 10 days, NOW and the New Year is going full blast.. Faster than normal to tell the truth.
I ordered gold oil RCAs (34.00 a pair) an a 2 meter silver ribbon speaker IC, 69.00 and got them in 6 days.

Look around. you can get silver plated over copper, if you order overseas for under 20 bucks I bet.. 500.00 each. I don't think so..
South America has some good product if you get the homie hook up too.
A LOT of silver products in the Americas.

Regards
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The Cardas adaptors are on sale now from Partsconnexion and at $90, while more expensive than the (similar) $4 model from Parts Express, the Cardas version would probably pass the "audiophile approved" test without spending $500, which just seems to be a silly price for something that will likely be plugged into a typical Neutrik connector or similar.  The SMc adaptors discussed by tvad below would also be a good choice as I believe they were made to work with Steve McCormack's $20K VRE-1c preamp.