$15,000 Floor-Standing Speaker Selection and Advice

As per title, have a budget of $15k to spend on new floor-standing speakers.

Was wondering your opinion and experiences within this price category if you done so before?

There are a tone of brands out there but I'd peoples first hand opinion and experience in the matter.

Examples are:
Perlisten Audio S7T
AudioSolution Figaro XL
Sonus Faber Sonetto VIII G2
Buchardt A700

What are some suggestions on good speakers to choose from at that price point?

Room is large 7m x 8m, so would need large speakers I assume.

Thanks for looking.