Quote:
Originally Posted by
Solude 
Normal, as in the same as everything else on the planet.
OK, the standard 3-pin XLR pinouts are pin 1 - ground, pin 2 - positive (hot), and pin 3 - negative (cold). However, American companies used to (probably still) use pin 3 "hot" and pin 2 "cold". On some devices, there is a phase inverter, for example on your PerfectWave DAC II (don't know the exact pinouts it uses).
In a speaker system, you just swap the +/- on speaker side or the amp side to correct the mismatch between the source and the amp. I guess it's a bit harder in a headphone system.
Edited by dan_can - 11/13/12 at 4:35pm