Best bookshelf loudspeakers under 10,000 for the pair

You would have to try these speakers with your existing components, but the persona b when I heard them were amazing. I think the sale's over tho'.

Define best before asking us what the best bookshelf speakers are. I dare you to define it. 

I would encourage you to check out my company Verdant Audio.  We do a couple speakers in this price range that might be interesting to you.  

We use composite cabinets with a nomex honeycomb core in our Nightshade and Blackthorn products which helps with damping.  We use Eton drivers which are very highly regarded and our products are made in the USA.  Ours are extremely light if that matters to you. 10-12lbs depending on the model due to the extremely lightweight cabinets. These two products sound pretty special but our frequency response is flat down to about 60hz.  Great imaging and amazing detail but  they really need a subwoofer to pair with them though.  If Detail is your concern, Blackthorns are the speaker.  If Imaging is your concern then the Nightshades are your speaker.  

I offer a free in-home trial where you can buy them and return if you don't like OR you can borrow a pair via Fat Llama.  Test them in-home and if you like them, you pay and we build them for you.  No out of pocket till you decide you like them.  

Other brands you really need to hear beyond what has already been mentioned:

Raidho - the X-1s are amazing. Unbelievable tweeter and wonderful imaging.  They need a sub for pairing but are brilliant speakers and wonderful for Jazz. 

Marten - the Oscar Duo is a cool speaker worth a listen.  They use exceptional drivers and have good frequency response.   

Vivid - Kaya S12 - Not sure if it is out yet but a cool looking speaker and Vivid has incredibly good technology. I haven't heard this unit yet but it is made by Vivid so I have faith it is worth your time.  Definitely will need a sub.

Magico A1 - Aluminum cabinet.  Good bass response.  Extremely heavy cabinets if that makes a difference.  

I’ve listened to bookshelves that cover the entire spectrum of price and to my ears the Dynaudio Special 40s are by far my favorite. At any price. So my vote is to save yourself $7k and try them.