Nice cables! I just received the Earstudio today and have been listening all afternoon (after getting most recent firmware installed). Great little device. I don't have what anyone would consider to be an 'audiophile' collection of equipment, but it sounds fantastic on what I have tried. For IEM's I have some Shure SE215's, and a pair of ATH M50's for full sized. It drives both really well and has a nice balanced sound. I have been feeding both over LDAC with both FLAC and Spotify....just sounds stellar. My only other current listening interface is a RME Babyface Pro ....which really is a great piece of gear...and has a wonderful DSP based EQ that you can apply to the HP outs. There are differences between the two, but honestly, I think the Earstudio holds its own...which is really an amazing thing to accomplish considering the price difference between the two. Anyways...not really adding anything to the thread...just chiming in to say I really like what I am hearing so far.