@zolkis regarding this
post: the 7.5k peak on the green is really interesting in the measurements, why does it shift there?
It sounds quite benign in the treble. The mids are still hotter a bit. Also, one bigger (but insignificant) 9kHz ridge on the CSD is replaced with 3 smaller ones, you can see their center points on the FR. Sounds smoother and more extended anyway, with less midrange energy even though the mids FR is more linear! IMHO that is a big improvement. I only wish I could do this on the TH900...
BTW it's known that FR measured with dummy head/coupler above 4 kHz is just for general direction, as it is not exact, will depend on reflections, position etc. Some people do hybrid measurements with in-ear microphone and then combine the curves by using algorithms - I don't
. What is important for me there is to check that I don't induce big problems with mods, just to be sure (higher distortion, notches, ridges, etc).
About the topic of hearing - extended hearing range is one thing, but one needs ears trained in critical listening. The two sets can overlap fully or partially in many ways, of course the optimal is when the two overlap completely. Professional reviewers have that, and even they differ on personal judgement. So I don't take this argument very seriously, since anyway I need to check others' subjective experiences with my own. When I find people whose opinion matches mine in
n cases, I will likely trust them more on the
(n+1)th case. For the others, I need to sample those
n cases, i.e. I need to check myself.
The music samples I shared were meant to indicate which type of music might have issues. I didn't expect to be commented on about the sound quality of the provided samples, completely sidetracking the discussion. I assumed everyone commenting here about this level of equipment is listening to at least CD quality material
.