Ok, I've had a chance to sit through these two tracks now to try and better understand what you're hearing. First up let me just say that while I have quite a bit of this type of music in my library, it's definitely not my main genre (I'd call this vocal trance, right?). Still, I do love listening to this (I have gigabytes' worth of female vocal trance collections), but to be honest, more on speakers (hi-fi and car) than on highly-revealing IEMs. And for the very reason that I find much of this material to be very compressed (for maximum loudness) with very little DR to help out the super high-energy parts of the tracks that need more room to
breathe. More notes below:
This track in particular has
extreme bright energy near the upper mids/lower treble. Nevve's vocals are also quite pitchy/compressed, but for good reason (to cut through the music). Still, I don't consider the opening part of the track too harsh or bright, at least not at my listening volume.
A quick note here: if you're a high-volume listener, EVO requires much LESS power than any other IEM I've used to get its woofers going. By comparison, when I listen to LX at vol 40 HG Turbo on my R8 (balanced), that's moderate volume, and the woofers just about kick in (but not always). 33 HGT with EVO is louder that that, and on this track, which is so compressed, I find I can turn it down to 30 and it's still plenty loud with the bass hitting just right. Now, when it comes to the drop (1:48), this song is mad-full of upper-mid/bright energy. I can just about handle it, but if I was to turn it up any more, it would be too much and my ears will ring for days. Now you could say it's an EVO issue, but...
With LX: Nevve's vocals are perhaps less edgy but she has more upper harmonic 'hardness'. Her vocals aren't nearly as resolved as with EVO, even though they're pushed a touch more forward on LX. when it comes to the drop, the 'harshness' which I heard in full high-res glory with EVO is simply lower-res harshness with LX. This makes it ever so slightly more forgiving, but even at Vol 40, the OG LX bass is not hitting anywhere near as hard or deep as EVO on 10 clicks less.
With IE 900: Neve's vocals are airier, a touch less intense, but so is the bass (which it usually isn't on IE 900, suggesting more of a midbass focus on this track). The drop is, just as before, quite harsh, without much bass countering the brightness. And this on an IEM with 'scooped' upper mids.
So what is this telling me? I'm of the opinion that if IEMs are weapons (appropriate in this case), music is the ammo, and its quite important to match the right ammo with the weapon. In this case you have a bright, compressed track with tons of upper-mid energy being played back on a highly-resolving (thus not very forgiving) IEM that has an upper-mid bump (which works great for simpler music and better recordings). And despite that, I enjoyed this track
more with EVO than I did the other two, even more than with the Sony XM4 wireless, which is my epitome of a warm, smooth, laid-back IEM. I have no idea how you're hearing it with Elysian X, but it must be doing some sort of voodoo crossover magic to avoid making this track sound anything elss than harsh in parts, especially at volume.
(And as an addendum, I was hearing far more harshness with EVO out the box with exacty this type of music, which is something that's settled very nicely now after burn-in and some tip/cable rolling. Out the box I dont think I would have enjoyed this track as much with EVO).
For his track all I'll say is that I'm hearting it much the same as above, except it's a much smoother and more forgiving track. The vocals push the limit, but then again, like I said above, the vocals are recorded compressed in an already-compressed production. That's just how I hear much of this type of music, which is why I said I usually prefer to listen to it on speakers where I don't have a microscope in my ears picking up every nanodetail of the compression and cheap plugins/samples they're using.
All that said, I like these tracks enough to go find more similar material where these came from, so thanks for the recs
@aaf evo.