Thus, about SQ, you prefer Deva because it has a bit more bass than Sundara -- are there other elements of sound that you regard as more pleasant in Deva as compared to Sundara?

@MalinYamato Most of it. I prefer the DEVAs mid which are a bit more full and the treble which is somewhat more mellow. In the past I would have preferred the Sundara, but my tastes have shifted in the last year or so to a warmer, bassier, less fatiguing sound. I still think the Sundara is technically the better headphone, I just prefer the tuning of the DEVA.