Good Speaker within a budget of USD10,000

@jsm71 makes a good point.  Don’t discount the possibility of going with some standmounts and some good subs, though if you go that route make sure you get an integrated amp or processor that can do proper bass management and that has some form of room correction, such as the Anthem STR line.  

1 - Budget 10% to 20% of that on room acoustics.
2 - Brands, consider Monitor Audio, Revel, JBL, Focal, B&W. All different sounding.
3 - Also, think about what type of speaker. 
- Full range?
- 2.5 way? (the size of the room may make this a good choice)
- Satellite + sub? Again, ideal for the size of the room PLUS allows subwoofer EQ without messing your main audio chain.

Would you consider a bespoke speaker system? Makers like Fritz can accommodate a wide range of customization, and components for not too much cash.

http://www.libertyaudio.com

A complete System for about $ 15K 

From its maker 

Good Listening

Peter

Golden Ear Triton Reference

Your room isn’t that big IMO,so I would stay away from anything to big unless you are going to do room treatments and or use a amplifier that has room correction.

10k is a good budget and if you shop around,like I did,you can buy something that retails new for much more but at used or demo prices.It’s currently a huge buyers market if you have money in hand and you are patient.

You need to give us more details of the sound preferences that you like,listening levels,do you want lots of solid bass without subs,etc.

With your budget I wouldn’t recommend anything from Tekton,way to many other great choices to look at.

Good luck to you,
Kenny.