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! :)
vermeer
VPI’s Harry Weisfeld recently stated in his blog that he feels the Eminent Technology LFT-8b has the most accurate midrange of any speaker he has ever heard. Unfortunately, it retails for only $2499, but with $15,000 you could always buy six pair ;-) .
Vermeer , I've heard the Persona's,  Kef Reference 5, Revel Ultima and Focal. I've also listened to Dynaudio speakers all in your range. I have Revel Performa with Mark Levinson amp. If I had the money for them  I would get the Kef Reference as the sounded better than anything I've heard, driven by 2 Mark Levinson mono blocks. They played very loud with absolutely no breakup or distortion,  just pure clean and delicate sound, sounded amazing. Dynaudio and Revels both also sound very good and play "flat" with a neutral sound your looking for. It also matters the equipment you use as Revels and Mark Levinson are both owned by Harman and tuned on Levinson amps same as Paradigm and Anthem so they sound best paired with the amps/preamps they are tuned with. 
I think I would chose a speaker that is the most "musical" over the most "accurate" Just my opinion.....
Vermeer:
Another shout out for ATC which make among the purest most natural sounding speakers that I have ever heard. 
Dynaudio.....Would be my choice if I could not afford Magico's. Dynaudio makes a lot of the drivers found in many high end speakers, they are one of the largest OEM suppliers of drivers in the world. Dynaudio makes some of the finest speakers that produce the sweetest, natural, authentic sound I have heard.

Matt M