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
As noted here, one has to "go out" and listen to as many speakers as possible. All speakers introduce coloration to the sound, so it is vital to listen and find out what YOU like in terms of sound and which brand YOU favor. Hype about a speaker or any electronics is flat out dangerous if you don’t have money to waste or blow through. Many audiophiles here have listened to dealer hype or went on the advice of a brand "fanboy" only to have bought something that does not sound good to THEM. Dealers have an agenda, sell their products. Owners of products they like, will get over-enthusiastic about the great stereo they have. The smart prospective audio buyer will listen to as many components as they can, and find (in your case) speakers that truly fit what YOU like.

From a practical perspective it is impossible for anyone to audition all available speaker options in one lifetime. There are many hundreds of brands and thousands of brand/model combinations. So at some level, purchasing decisions becomes a crap shoot.

Similarly, to the point of a fanboy club or cult, in the singular sense caution is advised, but once the number of fans grows into the thousands, tens of thousands and beyond you can usually rest assured there is something grate to behold. And should things still not sound good to *you* at that point, it may be time to question *your* hearing and/or change your preferences.
If I were looking at speakers at the $15k price point, I could make calls to dealers to make appts and listen within a reasonable driving distance. Also Audio shows can be fun, and one can listen to many (not all?) speaker brands. That bit of research could prove to very constructive, working toward a smart purchase.

Vermeer, Although both are excellent speakers I think the Summit X and Focal Sopra  2 are too much speaker for your small room.
Last saturday I brought the Paradigm Persona 3F home ... and they are not leaving (!)
Its neutrality, transparency and speed are shocking for its price tag. I felt like they asked me: "So, you want the truth? Can you handle the truth!?". Well, it turns out that I can ... but it's a (rewarding) challenge. These are "dangerous" speakers. They will be everyone's favourites. It adds and subtracts so little from the signal that one has to re-educate the ear. Recording you used to consider great are, after all, not that great. And the opposite is true as well. 
My wife is a lyric singer. We were listening to one of the "perfect" performances and she was noticing for the very first time some "imperfections" ... which in her perspective make it so much more "human" and authentic. I do agree ... 

The organic ultra-resolution of the Nagra Classic Amp are a perfect match. They deserve the very best electronics you can get ... And I have them sitting on the top of  Seismic Isolation Podium from Townshend. So, I think I'm treating them well :)

@audiotroy : I totally agree with your analysis. Not everyone's ears  are the same ... but it looks like we listen in the same way ;)

@tomcy6 : I took my amp to a friend's house to listen to his Summit X with the Nagra. The sound was awesome, but the place is some 70 sq. meters ... when I moved to the position where I will be listening to them at home, the sound felt unnatural (like having huge headphones). The Persona are a perfect fit for the room size ...

To everyone who contributed, thank you so much!!!
@vermeer   Congratulations and terrific to hear you've found a pair of speakers you are already loving. I imagine it will only get better as you further optimize.