It is official, the Fidelio X3s have dethroned my venerable NightHawks as my favorite and most pleasing sounding pair of headphones.
They are so allround excellent. True, they are brighter in their treble than neutral and occasionally they show their ugly side, but never with music tracks, always in Youtube commentary content and you could say they just try to give me a hint to stop listening to those babbling crappy Youtubers and instead listen to some fine music.
In resolution, detail delivery they are on par with my HD650s, NightHawks and just a tiny bit below the Avantone Planars. In clarity, soundstage, layering and imaging they beat the NightHawks and HD650s and I think they are on par with the Avantone Planars, but the X3s sound overall more immersive and engaging.
Their bass is the best, beating even the Denon D5000s in detail, texture and impact, but without sounding hard and boomy.
After the Sony MDR-Z7s, AudioQuest NightHawks yet another pair of universally disliked pair of headphones have become my favorites.