Best 40 to 50k used speakers


What would you consider the absolute best speakers on the used market, budget 40 to 50k max.Open to any suggestions thanks.


thieliste
I just listened to the Alsyvox I Maryland and thought it was spectacular. It has real bass. At that same location I listened to the GamuT RS3i and the RS5i. I think this is it for me. Next stop Gamut. He will take my TAD ME-1 as a trade + $. I do love the TAD but I think the GamuT is a notch above.
Are you a buyer, or just curious? I have my Vapor Audio Joule White speakers up for sale here.

BTW, I wouldn't respond if I didn't think they were properly classed in that price category. 
SO, do we assume a 40-50k speaker pair will go into a bespoke listening room???