First off,I happen to like Kharma speakers,very much!!Personally,and from quite a bit of exposure,I believe they definitely do much better with tube equipment.
Yet,the Magico Mini,driven by "elite" SS amplifuication is simply an astounding speaker!!I've heard it loads of times,at a friend's home,where I helped set them up.
The "driver" business we speak of(ceramic,or otherwise)is better employed on the Mini,because(IMO)the actual nature of the driver materials allow for less "aggresiveness" at louder volumes,versus ceramic types,or really many other types.
The "only" other speaker that compares to the type of inner detail and tonality the Mini portrays(at good volumes,but not overtly loud)is the Avalon Ascent Mk-II.Another overly built,sealed design,yet with a bit more upper mid air.....THIS is "just" opinion,from careful personal evaluation....Nothing written in stone!!
I happen to like the inner details that ceramic drivers allow,but "sorry",they can sound a bit "too much", when played at volume,necessitating a smoothe(but quite nice,to my tastes)tube amp.The Lamm 2.1(which is a fabulous amp)"does" Kharmas to the N'th degree,IMO!Yet,ceramic lacks the "last word" in tonal truth,to my ears!
However this is easily overlooked,because it can still sound SO DARN GOOD!!
So,back to the Mini.....with a "good" powerful SS amp design(assuming you have a superb pre),you can get the type of dynamics,and surprisingly good timbres(not unlike tubes)that many lust for.
Yet,the design allows for very good inner textures,that is "only" available on ceramic drivers,with extreme care in matching componentry.You've got a better shot of getting the textures right,with the Mini,compared to a ceramic based design.
The Mini,IMO,is easier to get "right"!
Forget about any "bass" issues,unless the room is LARGE!!
Just some thoughts.