Speakers with the most detailed midrange? (non-ESL/planar)

I currently own KEF105/2 Reference speakers, B&W 801Matrix Series 2 with the crossover mods they used in the series 3's, the series 2 crossovers had transformers that induced signals into each other, and all electrolytic capacitors have n ml been bypassed with Audyn True Copper Max capacitors, and any resistors in the audio path replaced with Mills non-inductive wire wound resistors. I also have Thiel CS-7s, untouched crossovers as shortly after I bought Audio Nirvana AN15 ALINCO drivers and haven't looked back. As for Vandersteens, unless they have drastically changed their speakers, the mids are lovely, bass too, but the highs sound like someone tossed a towel over the tweeters. I couldn't believe everything David, the owner of Audio Nirvana, said. Frankly I was sure that I would be returning the speakers under his 30 day return guarantee, but the instant I first heard them, the immediacy of the vocals mesmerized me. Don't get me wrong, just about everything else about the speaker sucked, but I knew that they needed a good 100 hours break in. Once they were broken in, I realized how badly crossovers, even with V-Caps and Mundorf Silver Golds, as in my KEFs, effected and muffled the sound. Thiels are famous for detail, the AN15's spanked them. You'll either have to have a local custom kitchen cabinet maker, a friend, you yourself build cabinets, but you won't be disappointed, shocked, but not disappointed. They will force you to upgrade if you have anything upstream that is less than adequate.

Harbeth 
any model

I’m surprised why Salk doesn’t get recommended much here. It’s SS 8 with Accuton midrange, RAAL tweeter and crossover designed for Dennis Murphy gives excellent and smooth mid to high performance. 

Woof--I would prefer not to name specific brands/models out of respect for the unique listening preferences of different folks who frequent this site. Everyone hears differently, has different room characteristics to work with, and different ideas about what constitutes great sound. My post was merely to point out that certain trade offs might come into play with designs that prioritize detail through the midrange. In my experience, a speaker that is balanced overall and gets the midrange "correct" will tend to satisfy over the long haul. One that emphasizes certain frequency bands in pursuit of "more detail" may impress initially ("WOW, I could hear the air pass between her teeth") but over time maybe not so much.

Very nice recommendations and interesting thoughts here. Keep on!

At the moment I am surprised how good sound I have at my working place since I placed my ATC SCM12 there powered by a paradigm AMP with ARC2 room correction. Source is Tidal from PC with an Oppo HA2-SE dac. Crossing at 80hz to a Cambridge Minx sub. Very simple and low cost. Fantastic sound. Don’t want to leave the desk. Can’t work. With the ATC also you have no SPL limitations whatever when you want to crank it up. The Minx sub has limitations though, but it is small enough for the desk.

For desk top listening you really need a good correction system because of all negative interaction from the desk, terminals etc. Cleans everything up dramatically. ARC is very handy because you can easily save and load different correction files, e.g. if you have more than one speaker to change between.I use several but the ATC is the winner right now. Very detailed but still smooth or easy to listen too.