Well, Fulla 2 + Magni 2 for me. Compared to the DACport Slim the Magni 2 sounds a bit more "filled out" on my HD 6XX. Subbass and other bass regions are either more apparent or sound tighter/less sloppy. Soundstage seems a tad bit wider. Honestly, the DACport Slim sounds good. The Fulla 2 + Magni 2 sound a little bit better and are great. What I really like about the Fulla 2 + Magni 2 setup is that I no longer have an audible noise floor.