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.


128x128thieliste
Borresens look nice ... what is the quality that stands out for you ... ?
Not much listed  for specification ...
@rego Unbelievable transparency and biggest 3d soundstage ever.A mix of MBL, Magnepan and best cone speakers.Real live performance.
Did you get a chance to hear the persona 9h? I think it could be a natural replacement, even upgrade with the components that you like the sound of.