I've found a discussion thread of a german HIFI Forum.
Some guys there claim that the Fireface would produce a better / more stable signal output with an alternative more powerfull power supply: the Peaktech 6080.

see http://www.aktives-hoeren.de/viewtopic. … amp;t=1785

Setup of the guy:

http://www.aktives-hoeren.de/viewtopic. … p;start=15

Is this voodoo or could it be true ?