I'm not sure either is accurate. I don't hear any sibliance. But I wouldn't call them warm either. Smooth sounds right. I have only listened over the bluemini so far but they lean toward bright but not harsh in any way.
I'll say that I personally found the highs harsh and ended up returning the Deva. I do have pretty sensitive ears, but even on the lowest possible volume a 30 minute listening session would leave me with ear discomfort. Ended up getting the Audio Technica R70X and paired with the same DAC/Amp I'm able to listen all day without discomfort.
Well alright then
I guess you said it yourself: it’s strange how we all perceive sound. Yet it can also be very helpful to figure out whom your tastes line up with, because, judging by the above, it seems we differ and go for different signatures.
I happen to think of the HD600 and R70x as the two most natural sounding headphones I’ve listened to, which is why I own both.