I'm curious to know how the SR-Omega compares to the SR-009. I've read plenty of SR-Omega vs. SR-007 impressions as well as plenty of SR-007 vs. SR-009 impressions, but very few direct comparisons of the two spoked/cartwheeled Omegas.
If we look at the whole sound, the SR-Omega may feel a bit more balanced in a way that is does not have a slightly "glossy" character like the SR009 exhibits, but not dark like the SR007 either. So in theory it sounds perfect, being in between the two, but also being a Stax with a big circular driver it is insanely resolving, beyond what the lesser models are capable of.
However, the midrange does not feel quite as well "corrected" as the SR009 there is a slightly dip somewhere which I found to be distracting with vocals.
I found the SR-Lambda to be better in that regard (not changing the tone, similar to SR009) Maybe it is amp dependent as well as I did not hear a T2 or BHSE which should probably be the weapon of choice for these.
Also the soundstage is absolutely huge but to the point where I felt being too wide with the imaging being a bit fuzzy compared to the SR009 and deep bass is not as well defined.
So I would say that the SR009 is better. The fit is similar between the two, but the SR-Omega is lighter (therefore looser) so probably the most comfortable headphone I tried.
Some people described it as a relative to the Orpheus but what I've been told is that the HE90 (and possibly even HE60) is still quite a bit better in the midrange tone (for me) not having this distraction.
Yes, the Omega really works wonders with many recordings but also causes a "hm" moment for me especially if I compare against my Lambda which is also bright (glaring?) to be point of being distracting and not that great in the bass, but I am able to adjust to it much better (for instance, even though the soundstage is much smaller than the SR-Omega, it feels more "believable" somehow)
Hope this helps.