Did you compare Eclipse with Macbeth Ti?
Definitely. Of the earphones I own, those two are always within arm's reach.
Like the Eclipse, the Macbeth Ti is small, has a titanium shell, and is very comfortable. I use the same combination of eartips (JVC Spiral Dot++) for both since the nozzle size is practically the same.
For my personal tastes, I'd describe the Macbeth Ti as perfectly tuned, I'm pretty sure the frequency measurement will overlay almost exactly with the 64 Nio, Technics TZ700, and even the Eclipse! They sound great, clear, open, airy, a huge soundstage with no noticeable peaks or recesses in the frequency range. It has a bass emphasis with some deep bass extension yet it manages to remain clear and un-muddied, unlike the Nio.
I'd use a lot of boring adjectives like reference and uncolored to describe the the Macbeth Ti because it has that TZ700 nature of being a bit too clinical sounding. It doesn't really add anything to the sound and comes away a bit lifeless. It's like sitting alone in an empty white room while eating your favorite meal. You have this clash of two strong emotional responses that this earphone is excellent but also a bit boring.
A weakness of the Macbeth Ti is the BA driver which can have occasional graininess in some tracks.
It's a brilliant earphone to have in my small collection but maybe not the one I would use as my main.
Funnily enough, the Eclipse is pretty similar. I'd say the frequency response is largely the same, though the Eclipse has a small peak near 5k that is occasionally noticed, but never bothersome. I'd say the detail remains, but it's not as light or airy as the Macbeth Ti. I wouldn't call it dark or heavy, but there is some weight in the upper regions that the Ti does not have. With the right eartips the Eclipse opens up to become almost speaker-like in sound stage (JVC is tops for me, wasn't a fan of AZLA). Bass extension is almost exactly the same, though the Eclipse does edge it by going that tiny bit deeper. Somehow, the Eclipse's one active driver has zero issues in the control and speed department. That's new for me because single DD driver earphones I've owned usually fall apart when things get too hectic and extension, on either end, is called for. I guess that's where the beauty of the passive driver comes in.
On paper, the two are largely the same. Again, if you were to overlay the frequency measurements of the two, they'd have more similarities than differences. Yet, the Eclipse has this warm analog sound that is enriching. It's one of those sounds that adds to the music, for better or worse depending on personal preference. I listen to a lot of electronic music and that warmth can really aid in what is typically computer generated sound. I find the Eclipse to be relaxing and cozy to listen to. It's not the earphone you reach for if your after a heightened listening experience. But it's one I prefer after a stressful day. It's engaging to listen to and so natural sounding. Voices sound so real.
If anything it's a great lesson in the larger issue of placing all your trust in a frequency measurement graph. Personally, I have to rely on it because there's no where near me to try these things out. It'll give me an idea of what something might sound like and any problem areas to look out for. Yet it will never tell the whole story. On paper, the Nio, TZ700, Macbeth Ti, and the Eclipse should all sound more or less the same. Of course they don't and the hard part for me is attempting to describe these tuning differences.
I hope this ramble helps.