Neutrik makes some of the best connectors on the market. Many of them are used by high profile cable companies. I order mine from Full Compus. They should carry the item you are searching for.
Neutrik XLR to RCA Adapters
The quesiton of where to purchase XLR to RCA adpaters has popped up more than once on Audigon. The usual resposnes direct folks towards products from BAT, Rowlans, PAD, etc, which are good but expensive. Well (and perhaps news only to me), Neutrik makes these adapters as well! The catalog numbers for the more common XLR to female RCA jacks are NA2MPMF (male XLR) and NA2FPMF (femele XLT). The cost? Theoretically about $ 17 each *vs, e.g., $ 115 a pair for the PAD version). The catch? No one seems to stock them!. I found a website in Canada that had ONE femele to female, and being a bulk distributor required me to purchase a $ 50 "license" to buy anything from them - pretty useless! So..the question is ..Does anyone know who might carry these in the US????