Best bookshelf loudspeakers under 10,000 for the pair

From speakers that I've heard:
Harbeth 20.2
Joseph Audio Pulsars
Paradigm Persona B

I ended up with the Persona B's. Sound great with a First Watt SIT 3.

That's Harbeth 30.2

So many options. I use the Adam Semiactive Tensor Delta bookshelf and stand design. A three way with AMT Tweeter and Midrange with a 9" woofer (very light and stiff). This is a front ported design with the woofer being self powered and electronically crossed over at ~500 Hz. The Midrange and Tweeter are driven by your supplied amplifier. The sensitivity is 91 db/1 watt/ 1 meter; so not inefficient. Used this can be found for less than $5,000 but sold originally for ~$10,000. Internal bass amplifier is Class D at 250 watts. I use a Levinson 27 on top with 100 watts and it is delightful. Sound is crisp, clean, detailed and dynamic with no harshness unless the recording is poor or in a nutshell very neutral with and gives you what is on the recording. It can be forgiving but it depends on the media type as well (source). I use Nordost cables.

Good luck on your search!

Sam.

Rushfan, I'm with you. 

You don't hear them mentioned often, but the Prana Fideltiy Bhava are excellent. I have heard them a couple of times at Axpona and walked away very impressed each time. Very much under the radar, but they just sound right to me.