by NekoAudio on Wed Jan 11, 2012 1:35 am
Hi, Chris. There is no sound difference between a unit with XLR or RCA outputs. The internal circuitry and wiring is the same up until the output jack. Using an XLR unit with an XLR->RCA cable creates the same circuit as an RCA unit, except for a difference in wire lengths and the connection to ground happening outside of the box versus inside of the box.
Wes Miaw, Neko Audio LLC