Quad 57's with the right room set up and proper amps matched to them
Quad 2805's again, with proper amps matched to them.
the 2805's perform well down to about 33hz
Quad 2905s. more speaker area. more bass response. 2905s perform well down to about 28hz... again with proper room set up and amps.
Magnepan's: several great options. I used Maggies for over 30 years. I like the 1.7s, the 3 series... and hot rodded Tympani's. Maggies need a bit more power than the Quads. and again proper room set up and proper amps matched to them.
I am not a big fan of the ML's. the ML's are nice. really good in fact. I personally don't care for the bass range being driven by a cone speaker and trying to match that with the planar mid range / treble via a cross over. Again very good. But for what you are specifically looking for....
nothing will come close to the Quads. Seriously. NOTE: I have not tried Quads with any of the amps you list. I drove my 2805's with AirTight ATM-3 mono blocs... sublime!!!!
I know several amazing violin and cello players. some are world famous. I am familiar with standing near them while they play live. I know the sound and the feeling in my bones from strings being played, I have been actually in the recording studio with some famous violinists and know the sound WELL. The Quads are stunning close. Especially when set up properly.
The Maggies are quite nice as well. I just prefer the Quads.. they are amazing.
IMHO