Agree with Irvrobinson. The "balanced" format is what is used exclusively in the pro/studio world-for good reasons mentioned here many times. The XLR is 110 ohms vs the RCA 75 ohm format so they are not directly interchangeable, you can easily mix and match.
RCA or XLR Between Digital Separates?
Hi I'm awaiting Antelope Zodiac basic DAC and wonder if there are any advantages/disadvantages between RCA and XLR digital cables used.