@abd1 Nice take on your Atalante 3s. I used to own the Clearwave Duet 6s as well but feel the Atalnate 3s to be a nice step up from them. I used to have Tonian Labs TL-D1s and their clarity and see thru is very hard to beat. Saying that, I found the Clearwaves to have a darker presentation, like there's too much smoke in the venue.
With the Atalantes, they have all the resolution and about 95% of the detail but just enough "smoke" to calm down the treble. Unlike your findings, I detect no abnormalities in the treble. No harshness, etch or anything that I would consider irritating, unless I turn the volume way up and then it's only SPL levels that get to me (being in a smallish room). It may all boil down to system synergy (I use a Technics SU-G700M2 and matching SACD player).
I completely agree with you on the balance of these speakers. You can tell they were designed by a person steeped in speaker design. They are the most unoffensive sounding speakers I've heard to date, and I mean that in a good way. Everything I play sounds good, to my ears, without the highlighting of certain qualities at the expense of others.
Let them break in for a good time (about a month or so) and you may find them even more enjoyable. I related to the dealer how impressed I was after a week and he said to call him back after a month and then tell him what I thought. He was right. 😄
All the best,
Nonoise