Harbeth vs Vandersteen vs Sonner

FYI i have the Rogue Stereo 100 driving Harbeth SHL5+ quite well.  It is not your typical 100 watt amp, it is more robust and dynamic sounding than a 150 WPC solid state amp I have.  I also comes close to the 200 watt cary audio solid state amp that the stereo 100 replaced.  huge transformers, dual mono setup, multiple power suplies and a large array of power capacitors make this one quite powerful yet still smooth, dynamic and transparent. 

@OP,
Johnny (audioconnection) is a Vandy dealer as well as a stand up guy here on Audiogon. He knows just about everything audio- and, I don't make that statement lightly.
If you want good advice, PM him. 
And, he won't try to sell you something.
I never cared for dealers until I met him.
Bob

I have the privilege of owning them paired with Rogue Audio separates
and the sound vs. the 30.2s is more open, transparent and with deeper bass response.

Avanti1960, I would agree with this. Standard SHL5+ would be my choice as well, especially since I own a pair.

I have the Sonner Duo Legato speakers.  They are paired with 25 watt Audion monoblocks and sound great.  They are very dynamic, refined but not too polite.  $8500 is a lot of money, but I've heard more expensive speakers that weren't as impressive.  Worth a listen.

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 !!!!!!