RCA to XLR adapters…

I apologize if this has been covered before – I did a couple of searches in the archives, but I didn’t find it. I recently acquired a balanced preamp (Audio Research) and, of course, my CDP (Rotel) is single-ended only. I currently have a pair of typical Chinese-made adapters, which I purchased locally. Since I am at least 10 months away from a CDP upgrade, I am thinking that it would be worthwhile to invest in a pair of better quality adapters. Therefore, I am looking for a pair ‘audiophile’ RCA (female) to XLR (male) adapters.

Thus far, the only ones that I have found are the items on the Cardas website. I was wondering if anyone knew of any other quality adapters that I might consider before making a purchase.

My other option would be to have someone like Signal Cable make me a custom RCA to XLR cable. Naturally, such a cable would have little resale value. In addition, it might be a step backwards when compared to my current Tara Labs RSC Air 3.

What do you think? Any suggestions would be appreciated.