Searching for the most "accurate" speaker (below 15K)


I’m looking for the most accurate and resolving speakers (budget is <= 15K). Paradigm Persona 3F, Kef Reference 3 or Focal Sopra 2 are some of the options I can think of. Any opinions on how these compare? Should I had other options to this shortlist? The amplifier is the (absolutely extraordinary) Nagra Classic AMP.

Thanks! :)
128x128vermeer
<kurtis>Linkwitz LX521.4 system is about $10k but you have to have the room.

Agreed. You could also check out the Eclipse TD712s or  active ATC 
SCM 40s.

All of the above are precision instruments, with the ATC being the most benign for once!
In my listening room I currently have B&W 804s, Tekton Double Impacts and Tekton Ulfberhts. I received the Ulfs about a week ago. I loved the B&Ws for years. Tried the DIs on a whim and they sidelined the B&Ws handily. Ordered the Ulfs thinking, as good as the DIs sound, the Ulfs couldn't be $9K better. But I was making a long-term investment and wanted to know I made the right choice. I was wrong. The performance is worth the price delta in my world anyway. I am extremely impressed with them and they aren't even broken-in yet. Two nights ago the wife came into the room to listen with me. Took over the controls and was still listening at 2am. That has never happened. She will occasionally listen to things or listen with me, but I've never had to drag her out of the room before. You'll be selling yourself short if you don't audition the Ulfs. The down-side is, they are physically large speakers.
If it’s accuracy you are looking for in a speaker and you have the room and open space for planars’, the Peter Gunn modified Magnepan MMGi’s are the most accurate speaker I’ve ever heard and they are also the only speaker I’ve ever listen to with zero audible distortion. The only speaker that has come close IMO is the Vandersteen model 7. This opinion is coming from 40 years of dealing with hi end audio equipment and owning over 25 pairs of high end speakers including six name brand horn speakers. These speakers are less than $3,000 and trump other speakers costing $50,000 and up.   One of his customers sold his pair of Wilson's after buying the modified Magnepan's.  

Check out his website and see what he does to the speakers. I just bought a pair and they are like fine pieces of furniture. However, your amp won’t drive them, you need at least 250 watts a side to make them sing. They take forever to get and the waiting list is a mile long but it’s worth it. Also, looks can be deceiving the bass coming from these speakers are unreal.

However, if you are looking for a wide sound stage, emotional presentation and bass that will move your soul, the Vandersteen Quattro is outstanding. 

Enjoy.
Post removed 
I believe he already purchased.  In reading this thread it's funny since the work accurate means nothing in audio.  It's totally different to different people.  Some go by measurements, so go by listening, some go by emotion alone.  It's the way it should be, but the word accurate just shouldn't be in the vocabulary of audio IMHO.