I own a Ressonessence Invicta and a pair of Focal Utopias and am wanting to upgrade the headphone component of this setup. The idea of adding a power amp and utilising the Invicta volume control is really appealing as no redundant pots etc will be introduced into the signal path. I have considered various headphone amps but used power amps seem to represent far better value and are far more readily available, as a result I am wanting to at least explore this avenue before splashing the cash. So, given that waffle could anyone give an opinion of how suitable a Passlabs J2 would be in powering the Utopias. If not alternate suggestions would be great fully received.