I'm not a real audiophile; I just enjoy music in a more analytical approach. I love to separate, and hear every note to understand/feel what a composer tries to achieve, and how he/she does it. I do listen for relaxation from time to time, though. I currently use an Aune X1S as DAC and vorzuge pure II+ as amp. I know it's a wierd setup, but I work with what I have. I'm finally getting a used Mojo though, and hopefully I get a good mobile setup that improves overall experience a bit.
I was originally looking for a pair of natural and comfortable closed cans that perform at least on par with, or better than, my old and trusted HD 600 (the AC noise in my room completely ruined the experience, which would have been great otherwise) and was recommended by a friend to get the ether CX.
These are quite well-built with great material choices. Many have mentioned this, so I'll start from a different perspective. I was dumb and didn't get used to the longer cable (with that heavy balanced connector I haven't been able to fully utilize this entire time) they came with than the one I have on my HD600, so I tripped over it twice, and the CX fell off the table onto cold hard ground, both times. Fortunately, although the gimbals deformed, I was able to bend them back to the original shapes with little effort and the sound didn't change. No paint or coating chipped off. I'm sure that I'm keeping these cans till the end of time. (lol)
These cans feel extremely comfortable despite weighing slightly more than the HD600 (a legend in terms of comfort), but the sound performance is extremely seal-dependant. I have to shave more often to mainatain a consistent listening experience because they're that sensitive to leaks. I often spend a lot of time fiddling with the positions of the pads and notice significant differences in image placement and shape of soundstage. That said, when I have a good seal and pads properly positioned, I get an extremely detailed, solid, non-fatiguing sound, without the annoying AC noise. Bach's art of fugue and many other polyphonic works never sound so straightforward and organized to me. I lose a bit of soundstage compared to what I got with HD600, but that's ok to me. In the end, they are closed cans. Vocals also seem more engaging and lively, and that has helped me to appreciate more genres. Dynamics don't stand out, but I know I don't need more either (my ears don't handle much), so YMMV.
I didn't do the first 150 hours of burn-in myself on the pair I have. My friend told me the bass got slightly better, but it was still a bit lacking to me. I decided to take them off my head and gambled by turning the volume knob on my amp all the way up to play some bass-heavy tracks. I suspected that large displacements would relax the drivers more effectively. I felt like I noticed improvement but I have no tools to measure or back up my claims. They perform better as mini desktop speakers than HD 600 with significantly more detail and greater volume (lol). Note that I do this only for short periods to avoid permanent damage (although these should take up to 3W just fine, way above what my little amp can do). Still, I use EQ to boost the sub-bass by about 3 dB, and they respond extremely well. These cans seem to shine at high rather than low volumes; not the best for me, but fine.
It took me quite some time to get through most of the little quirks of these cans, and I don't think they're for everyone. I just feel very lucky to be able to enjoy these way more than my HD 600. With overall great satisfaction, I decided to share my photo and now this delayed impression writeup. (the first time for me) I hope you enjoyed them.