After having those for about a month here's my impressions. First of all build quality is stellar, I love how everything just goes well together and how solid it feels. It's very comfortable and I can wear it for hours without fatigue. Sound wise it's just what I need as my main headphone while at home, something that's quite dark and non fatiguing. This doesn't mean it has less detail, it's just smoother and not "pushed into my brain" as some other headphones. The planar bass is bliss. I'm tempted to bite the bullet and upgrade my S.M.S.L M6 to either R2R-11 or iFi iDSD Micro BL, anyone can chip in oh which one to pick/their experience with those two while using the LCD-2C?