$20k top, full range speakers?

Hello,
I have been searching and searching for a new or used pair of full range speakers in the $15k-$20k range.
I would like speakers that are enjoyable at low volume as well as high volume. I owned two full range so far both
Not great at low volume, making me always wanting back those kef 104ab...
I have been thinking about:
Sonus faber Amati anniversario
Rockport
Usher be20 (the weight and looks are a bit of concerns)
Opera Tebaldi

The room is 28'x24 L with openings and not austicslly treated as it is a living room.
I would appreciate any inputs.
Thank you