I think the three of these are the best tweeters I have heard (and I agree with ShadyJ's comment, but given good crossover design and intelligent implementation, it does beg the question of which you would select if you were a designer and had access).
The liability (if you can call it that) of the Ceramic is it is the only one that uses a wave guide. For me, in my room, I found comparing the Canton to the RAAL in the BMR that I preferred the BMR about 70/30%! However, be clear, 30% of the time I actually preferred the Canton! If I was a sales guy and could chose the music, I think I could control which speaker you bought by selecting the content that favored one over the other! I feel like the Focal and the RAAL (neither uses a waveguide) are much more similar in nature. I feel that I can pick up more (very) subtle nuances of music with the Focal Twin6Be but I have a hard time believing that the RAAL does not have as much detail, I would venture that it might be more a matter of the ability to more precisely tune the Twin6Be's crossover (which is an active design). But we are talking slight difference on the count.
But at the end of the day, this is all my subjective ramblings. I am very interested in what differences show up when Erin measures these speakers! I know that I am subject to bias. I might well believe I hear more nuance with the Focals simply because I know they are very high quality studio monitors and well respected by recording engineers! The influence of bias is a huge factor when the speakers are this close in performance (less so, if I was comparing something like Pioneer BS22 to the BMR's where the differences will "slap me in the face").
I am also inclined to believe that the Canton is a little tipped up on the high end, but that might be an aspect of the waveguide!?
Like I say, I am anxious to see Erin's measurements so I can hopefully relate my experiences to his measurements or realize where bias has played a role.
As far as great speakers I can listen to while Erin has these, I have Martin-Logan Vista electrostatics (currently in the BR), Canton Vento 876 (which are currently in the LR), and Focal Solo6 Be.
However, when I am not actually listening to music, I am most often listening simply to my JBL LSR305's (in the LR), RBH Emptek 41B (in the BR), Amazon View (in the kitchen), and Vento 820.2 (in the office) because I am lazy and saying "Alexa play Pandora Everywhere" is easy and I can control it from whatever room I am in! (I have formed an "Everywhere" group using the Alexa app)
