Vandersteen, Magico, Thiel (as is in other Thiels such as the 3.7 which, with two large bass drivers should be perhaps better capable for properly reproducing orchestral peaks without compression.
I know the amp is not running out of steam, far from it, the needle on the Pass 150.8 doesn't move even at the loudest playback levels. Its only driving on each side one midrange and one tweeter (the speakers have powered subs). I think there's a sense in which the Personas are more highly resolving than the Thiels but the Thiels are a bit more forward in the midrange, are less electronic sounding which seems to me to involve the speaker reproduces the sound around the solo instruments. Its a difficult thing to put into words, what I'm hearing that is. Of course that is the nature of the beast. And Yes that's the argument against the Personas, that for that much money I should be able to "have it all." Today I've been running convolution in room with filters derived in REW that bring the top end down a tiny bit which makes louder levels seem more realistic and less electronic so I suppose it could just be a question of that slight tilt up in the response of the Persona speakers. Fortunately I have the most patient dealer rep in the world as I labor over this decision. I'm beginning to think its going to be harder than just auditioning a few different speakers available to me here in Atlanta, that rather it might be a good idea to start attending a few shows like the APOXNA show coming up in Chicago, before I sink money into what will, at 61, be my "last" speaker. Of course another audiophile friend asked me if such a thing exists. YES. At least for me, that's what I'm after.