Any speaker with a forward upper range will sound more detailed, think of turning up a treble control and you noticed more detail. A hot tweeter is very reveling but not correct. Many cables push the highs also making you think they are detailed but in the end, you tire of them, like speakers that are hot in the top when you have to start trying to find recordings to play that you can sit and enjoy that tells you something is not right, the balance is off somewhere. The room plays a big part in any system, but electrostatic speakers have no crossovers at all, sound natural, and makes music listening enjoyable while having the best details and vocals along with instruments having propper size, tone, and color. Of course, you cannot play them at ear bleed levels, but like we all should know any recordings has the right level where it sounds right and higher and you lose the magic.
I've heard many speakers in the 15K range that sounded just so unlike real music compared to Quads. All detail nothing else done right. Dealers want to sell only because anyone hearing what they said was great would know they have no idea what they were talking about. Not like the old days when dealers were hobbyists also, and really knew the gear they would and could put together components that would work for your tastes.