Enjoy. I’ve had mine for nearly 4 years now and for good reason.
Definitely nothing to dislike about them. They are not even super bassy to the point it overwhelms everything. It is "exciting" and "fun" without altering the original song/piece much. Just enhances it, if anything. Yes it is a "big" sound, but very tastefully done. And again, the treble is quite amazing.
Of course other IEMs of mine have excellent mids that make violins/vocals quite special, but at least with the Atlas these do not disappear in a huge frequency response valley, so you can turn up the volume as needed, and the bass/treble still won't hurt at all. That is why classical still is excellent with the Atlas. Pop music vocals in general do not get lost, even if not on the forefront, unless it was badly mastered in that way. Definitely a worthwhile "flagship" back then, and great IEMs to keep for all time-I have nothing that do what the Atlas does, and as such an enjoyable level.
Not "analytical", but respects the source material.
Easy to drive if that is a concern.
Easy fit in my experience-I wear them cable down, they never leave my ears (maybe the Crystal eartips are also very solid in that way.) I also have the Final Heaven V-cable down IEMs-and though lighter, those at times move a bit (not much, and do not fall, but can ocassionally shift position.)
Still cannot find the mythical "drive flex" always cited as a con. Either I am an idiot and cannot pinpoint it, or it really has never happened to me. No problems with the Atlas so far-no cutouts/loss of volume? Perhaps it only happens with deep insertion and other silicon tips, and the Crystal tips do not have that issue? It just feels so odd "everyone agrees" there is a problem with the Atlas design, and I cannot understand it.
Maybe not universal IEMs, but true keepers. Cannot find a con other than the initial retail price, and that because they were out of my reach economically, not because I think they were overpriced.
Sometimes you hear a song, and it moves you to tears with how great it makes old classics sounds. Can make many badly mastered tracks shine, either by adding fullness or making cymbals (and other usually veiled details) reappear. Same with a classical violin concerto recording I have by a great violinist-I feel as-is, the hall wasn't ideal, and it didn't make her playing justice (it is not the violinist's problem-sounds fine elsewhere and live)-the Atlas "renewed" the recording so it sounds actually great. Very impressive indeed. Love these Atlas IEMs-if it isn't obvious enough.