Egrady,
"Can the 3.7 resolve low level detail as well as the electrostatic like Wilson"
In short yes. The 3.7s are one of the most resolving box speakers I have ever heard. But I have never heard a box speaker get more details in the mids than a good electrostatic (wilsons are far from it too...). I also own a pair of CS2.4, while they are a good speaker the 3.7 is on another level.
I find it interesting you found the Wilson more revealing than thiel. Was it just in the highs or was it also in the mids and bass? I am not a stickler for highs and find most good speakers recreate the highs good enough for me because of my tastes I may not have noticed the CS2.4s short coming in the highs (if it exists). But I am very picky about the mids and bass. I like a LOT of midrange detail and smooth textured bass. In those two areas I feel Thiel hit a home run with the 3.7s.
"Can the 3.7 resolve low level detail as well as the electrostatic like Wilson"
In short yes. The 3.7s are one of the most resolving box speakers I have ever heard. But I have never heard a box speaker get more details in the mids than a good electrostatic (wilsons are far from it too...). I also own a pair of CS2.4, while they are a good speaker the 3.7 is on another level.
I find it interesting you found the Wilson more revealing than thiel. Was it just in the highs or was it also in the mids and bass? I am not a stickler for highs and find most good speakers recreate the highs good enough for me because of my tastes I may not have noticed the CS2.4s short coming in the highs (if it exists). But I am very picky about the mids and bass. I like a LOT of midrange detail and smooth textured bass. In those two areas I feel Thiel hit a home run with the 3.7s.