Well, what can I say? I can connect to other very positive reviews me only: these headphones is really worth its price. I had (that I still have it) before a Beyerdynamic DT880 and found the already class. I only hear through headphones, as sources serve me either a FIIO X5 (stocked exclusively with FLAC files, connected to a FIIO E12 Montblanc) or my amp Cambridge 640A (V2) with the CD player Cambridge 640C. The T90 brings details to light that my long-serving DT880 has somehow embezzled. Reveals whether a recording is done well or if was sloppy or even fudged. So, bad shots are then actually exposed as bad, there is nothing, nothing glossed wirkich. The really good shots go but really over his ears to the heart - I do not know how to express it differently. The workmanship is very good, the feel is comfortable and airy, not suppressed. Enough now, I'm gonna go back listening to music :-)