Sonically I agree with Stanwall, but the connectino is better with XLR connectors due to the size variation in RCA connectors. Thus, I like to use pin 1, the gnd, and pin 2(+) and avoid pin 3 (-) and connect with XLR, and avoid the problems with RCA connectors, and get the benefits of an XLR. A hybrid of sorts with RCA sound and XLR connections....works for me. I use balanced for long runs if noise is an issue. JALLEN
