Simgot EA500 LM

Technicalities depend entirely on what you want to hear. What you think makes the sound "technical", what some people find "technical" other people may find harsh, or overly clinical and sterile, lacking musical nuance. Sound Stage on IEMs is very tricky, and equally as subjective. "Sound stage" is a byproduct of your ears anatomy, and your brains interpretation of sound. When sound hits your outer ear, certain shapes and features of the ear will cause all kinds of delays, cancellations, and reflections to a sound wave, before it ever reaches your inner ear. And then the shape of your inner ear dictates even more wave functions, before the sound wave his your ear drum, and eventually acts on your auditory nerve, which your brain then interprets, over time and by trial and error as your brain is developing, what those sound delays and nulls mean to pinpoint where a sound is coming from in 3D Space. As you look at a graph of an IEM, you will find many graphs start to do a lot of really weird things north of 5k. Everyone one of those dips or peaks, is going to interact with your inner ear canals various modalities, and your brain will "perceive" depth, height, width, etc. from that sound energy. Now, much of this can be imparted by a sound engineer mixing things a certain way, so called "paychoacoustics", like reverb and delay, and cross mixing, etc. The mechanical presentation of the IEM will impart the rest, and for some people, this works great, for others, it does not. Some people hear great things, others will hear nothing. A prime example of this, is the EW300, there is something about that IEM that makes some peoples ears hear less detail, less treble, and less sound stage. While others say it's fantastic. So, soundstage is not a "meme" as some reviewers like to call it, and biological differences in peoples ears make a huge difference in perception, because the outer ear that is so critical for shaping and focusing our perception of sound, is taken completely out of the equation with IEMs. This doesn't mean it's a "meme" because there is no science that definitively says "this is sound stage", it's that there are too many variables that it is purely subjective, and while a majority may hear one thing, there will be a not insignificant number of outliers on either end of that bell curve that hear the exact opposite, or nothing at all. This also ties in to why tip selection and tip rolling on IEMs is so important, and makes such a massive difference in the way sound interacts with your ear. And, sadly, most people sleep on it, because big reviewers would rather call it a "meme", and be pedantic about being right, than saying there is no right answer, and your mileage may vary. IEMs are a journey, best of luck.

Its really bright. Great for detecting sibilance, not so much for tonality. The more neutral the IEM, the better is is for mixing. Think, Sivga Que, or Tanchjim Bunny or Fission. Something with a IEF target, and low bass and treble gain.