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

My bad, I confused 2 of their models. One pair of the 3.8s are on sale

I like proac so far but I need to spend some time with some harbeth. 

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.