BryanKIt has to be Rev. B. As far as I know, Fiio took back all the Rev. A left stock. I am receiving mine from mp4nation tomorrow morning, couldn´t wait for massdrop. I suppose I'll end up sending one of them back.
AshadeI think so as well. I just wanted a written confirmation (in the form of a comment) from a massdrop rep to make it 'official'. I hope these ship out soon!