RCA to RCA versus RCA to XLR

I was planning to order a new interconnect cable and considered having this made with one end terminated with RCA connectors and the other end terminated with a XLR connection. The RCA end would go into my Scott tuner and the XLR end would go into my ARC pre-amp. My question is whether or not there would be any significant sonic advantage to doing this, as opposed to simply ordering an IC with a RCA termination on both ends.