That is quite a glowing review, great stuff. I agree that it has some incredible qualities that make me wonder why I bother with other headphones sometimes, but I have to say that my LCD-2 is the only thing that makes them fall behind. I really recommend that you try out a planar magnetic headphone at some point, especially the LCD-2 and maybe the LCD-X if you don't want as much bass and a more clinical sound. I absolutely love my K550 for travel, though.
Audeze is well beyond what I'm willing to spend on headfi. I have recently heard the HIFIMAN HE-400i, which is the absolute max of what would spend. I really liked the planar magnetic sound. There was something very right about the bass and the mids has a bit more weight to it compared to the K550. For violin/cello solos and vocal jazz like Diana Krall etc. I would choose the HIFIMAN. But the HIFIMAN has a more grainy sound compared to the K550 and the soundstage and instrument separation is really bad compared to the K550. The more I get used to the velvety completely grain free sound of the K550, the more I crave it and the more I dislike grainy sound.
I would like to hear a more refined planar magnetic, like the LCD-2, but I'm afraid that would lead me down the dark and evil path of audiopfilia again ;-)
Yeah, I love my K550s and K545s too. They are something special, the both of them.
BOTH are HOT, and I wouldn't complain about either. The K545 brings that extra BASS & portability, but the K550 just brings that little bit "extra" where it counts to the table... MAKES you stand up and take notice.
I know exactly what you mean :-)