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! :)
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@jtgofish : i heard a lot of good things about the new Yamaha 5000 ... but they're not available in my country :/
If you really want to hear the flatest and most phase linear speakers ever(im an sound engineer and i dont bs)then try to source&audition a pair of MeyerSound HD1 midfield studio monitors(no longer in production)....but you probably wont like them :)
But I do
They used to cost in the region of 3000 each
Good luck
The Paradigms may be a great candidate for room correction/EQ. The speed and transparency of beryllium is pretty much unmatched short of diamond drivers. But the Persona series do veer a bit farther from neutral in the +/- FR variance based on the public reviews online. With some driver materials you have to worry about rising THD with EQ but its not an concern with a driver material as clean as be.