Thank you for the chart.
I listened to both the Raven and Anni on separate occasions and the chart mirrors my impressions:
1. the Anni has a lot of treble energy and that sort of dwarfed over its bass
2. the Raven indeed is less bright and that allows its bass to shine through. In fact, I feel that the song/music is very well supported by the bass which seems to be an everflowing stream, probably the work of the DD and BCD
Personally, I wouldn't have thought the Raven and Anni shared the same tuning based on just listening alone. They have 2 different personality based on tonalities. To my ears, Anni is bright and Raven more balanced. Of the 2 I prefer the Raven's signature. The problem is, as some Coolers have already alluded to, the Raven despite being a very well executed and good IEM, it is just not outstanding enough to warrant a purchase for me. It is a good but yet "ordinary" IEM (please note the quotation marks). I prefer the Odin to the Raven. And if I could only own one out of the 2, Anni or Raven, I would choose the Anni. Throwing the Odin into the fray, it would be the one I'd pick up.
As usual YMMV.
Have you heard the Fei Wan by any chance? I love the Annihilator-- in particular the energy and articulation in the upper frequencies. The bass always wound up being a bit of a let down for me (though I know many don't have this issue...YMMV) but in Fei Wan I found an IEM that takes most of what I love about something like the Annihilator (but not everything), adds some of its own imaging secret sauce and most importantly a thoroughly satisfying bass response. I agree about the Raven. I heard it a few times in SoCal. I found it quite source picky (sounded super engaging and dynamic through one, but flat and dull through another) but on the whole nothing about it really grabbed me or stood out in my mind later. I'm looking forward to revisiting it in NYC.
I found that with music genres like oldies and orchestral soundtracks, there is really no IEM that can do it all perfectly. They are just so different.
As I mentioned earlier, with some of these busy soundtracks, I will want more upper mids and less lower mids, give the different instruments as much room as possible. These tracks often straddles the fine line to hit the balance that allows you to hear everything while utilising many instruments to create the atmosphere. A warm or dark sounding set of IEM can easily break this balance and end up sounding mediocre.
Violins are often used to carry the melody and convey emotions in a track. With dipped upper mids, you can’t provide enough energy for them, which can potentially kill half of the track. Similar applies to vocals.
I think with vocals it can go both ways. A number of my favorite IEMs have dipped upper mids but very satisfying vocals. That said I tend to fixate more on male vocals than female vocals, which I don't listen to as much on the whole. I tend to have the opposite issue with many IEMs-- my two biggest deal breakers (apart from bass quality) are not enough meat in the mid bass and too much energy in the upper mids. As others have said recently so much comes down to the sort of music we listen to and what we tend to focus on within that music.
This approach goes directly against oldies. Take the Carpenters - Only Yesterday for example. It has a rather intense upper mids energy, especially in the chorus. Those upper mids boost and lean lower mids that worked for soundtracks will make this song very shouty. Not a good time if you are sensitive to that region of sound.
CFA’s house sound on the other hand, is close to perfect for these. You get the warmer and larger sound that fills all the space, allows you to focus on the texture of the notes — something that the leaner reference sounding set simply cannot compete.
Probably why these IEMs are controversial.
I could see that...but I also think CFA tends to get a lot of unfair animus from sections of the audio community when really what they're doing is just playing to a different niche. Pound for pound they're my favorite brand. I've been from one side of the audio landscape to the other and I always find myself coming back to their IEMs. A lot of this admittedly has to do with library. I think I have a lot of similar music tastes to the folks who tune their IEMs which, as you allude here, includes (among other things) a lot of classic rock, pop and jazz. Thank-you for sharing your thoughtful impressions.