Harbeth vs Vandersteen vs Sonner

@audioconnection gsal - awesome system, I have heard every single bit you mentioned ( except the Legacy sub ) all stellar by themselves and must make a hyper musical system. I will look at your system pics, but i am guessing some HRS isolation is next....

well after ( or the middle ? ) of the Pandemic and too much wine I renamed the Treo ......Cleopatra....

6 months later, they ( she ) shines on just 40 wpc...

wondering what the OP did ??????Hopefully enjoying the music, every minute of it !!!!!!

To the OP , great question- take a look at my Casa Pacifica  system in the virtual system section for an idea of room size. I don’t listen very loudly to the Treo CT but every now and then do crank them up into to mid 90’s. They are engineered to be an easy load and can be well driven by a quality 40 wpc class a/b amplifier. I use a NAIM atom but also have a 100
wpc Music Reference RM-9. It’s not a loudness thing, but it is an amazing amplifier- created by a genius ( RIP Roger ) I think there are many many quality SS and Tube amps well suited to Treo. My short list would include: arc, Music Ref, Rogue, VTL, Aesthetix, Ayre, Belles, Line Magnetic... NAIM, I only recommend things I have heard
fire away w questions 

After a few drinks, I have taken to call my Treo.... Cleo... ha no worries, I have heard two of the three ( not the Sonner ) and they provide vastly different but alluring soundscapes... while I prefer the Treo as others wisely said, you may not.
aint it grand to have choices!!!!!