After having a pair of Rockports Hyperion for 11 years, hooked up on huge poweramps i deceided to move to a High eficient speaker and a low watt amp.
My decision went to Sigma Acoustic: Maat Vector XDC which i beleave starts at around 165k€.
There are many ultra highend speaker but these have captured my heart for sure.
With 100db and flat 8 Ohm i can now use single ended tube as solid state amps and this has been a very very nice expirience.
End of story would be that after having them a year, i would buy them again.
Happy chrismas and hopeful we get a lot of good music.
regards