What speaker do you passionately want to demo?


Beyond the slight curiosity of what speaker you'd "like" to demo (example: every Klipsch horn speaker), what speaker(s) would you "passionately" love to demo?  A brief explanation of "why" you like these speakers would be beneficial.

I'll start:

MBL 101 X-treme - almost a decade and reviewers still say it's amongst the best they'd ever heard.  Probably should be matched to the MBL Electronics

Living Voice Vox Olympian Horn - it's wood (maybe sounds more warm/organic), it's a horn, and it consistently gets good reviews at the Munich High End audio shows.

Muraudio SP1 - Electrostatic + cone hybrid speaker that received many rave reviews.  It's not an easy task successfully marrying the fast electrostatic to the slower cone to sound seamless.  This speaker was on my short list to purchase.

Voxativ AC-XP field coil driver - both Voxative and Pure Audio Project speaker offer the Voxativ AC-XP field coil driver as an optional upgrade, but it's an additional ~$7k (yow).  The reviews leads me to believe that this field core driver is sonically "significantly" superior above other choices.  

Mike Lavigne's Evolution Acoustics MM7 in his dedicated sound room.  The sonics of demoing speakers at storefronts or audio shows can be problematic depending on the audio chain and the room setup.  MikeL has a matured optimized setup that is sonically recognized as excellent by other serious audiophiles.  
kennyc
looking at the room measurements of the magico A5 has tempered my enthusiasm for that speaker, the legacy Aeris looks impressive, but my current home demo of the kef blade is making me less interested in how other speakers sound.
@steve59
You keep promoting this flaws narrative, although you have been told by quite a few people, including JA from Stereophile , that the A5 overall room response is “the best he has ever measured.”
It will do you good if you understand what you are talking about, when it comes to factual like measurements; it might even lead you to a better sounding system.
Tune Tots for my fifth wheel. ;) The LS50s are pretty good, some Wilson would be nice though.
Von Schweikert VR9SE Mk11, Evolution Acoustics MM2/MM3, Arion Apollo - all easy to drive speakers full range speaker systems.