Standmount speaker suggestion

Alta Alyssa seems to be a leader in the standmount passive speaker class. If I were in the market at $5000 or so, I would start with those and force myself to justify spending more.

The JBL 4349 is a "standmount," but not in the conventional sense. It is heavier than most monitors and the stand is a riser frame that lifts the speaker up about 9 inches. The NPP is at the higher end of your listed range, but new-condition pairs are easily had toward the lower end of your price range.

I am assuming you plan on using a subwoofer.

The B&Ws tend to be lively up top.  But before I you start switching speakers make sure that your room is optimized as much as possible.  If the room is too reflective most speakers will sound a bit bright.

Whatever you do, just don’t buy JL Audio. I personally should have taken that advice I was given here before dropping 11k on broken subs. 

Sonus Faber for more natural musical

DynAudio for more detailed.

Totem for more punchy relaxed.

Yes Dynaudio are detailed...but smooth and listenable.  I also think they have impressive bass for their size..controlled not boomy.  :)