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
@bdp24 , The model 10 is a fine loudspeaker for one person in one location. They beam like crazy. Roger Sanders does not think this is a problem. His thinking being that when you are not in that singular position you are just using the system for background music and high frequency performance does not matter. Having lived for over a decade with very selfish ESLs not quite as bad as the Sanders, I always found the beaming to be an annoyance. With the 45 degree dispersion angle of the Sound Labs you get balanced frequency response throughout the room without unnecessary room interaction. IMHO the Sound Labs 545, about the same price as the Model 10 is a much better loudspeaker overall. Both require a subwoofer for ultimate low frequency performance and the lowest distortion. 
Fair points, @mijostyn. I’ve heard the Sanders Model 10 (C version?) twice (at the Anaheim Show), and loved ’em. Having lived with the QUAD ESL for years, I’m quite used to a loudspeaker which beams, not a problem for me. As for subs, agreed. I already have a pair of what imo is the best in the world for use with planar loudspeakers: the GR Research/Rythmik OB/Dipole Servo.
Tannoy Stirlings or Turnberrys, and SP versions of the Fyne 501 and 502.  For a completely different presentation, the Graham LS6 in either the standmount or floor standing versions.
I'll second the Mur Audio SP1's and the bigger brother PX2.  I currently own martin logan ethos and have an opportunity to build another system and was eyeing up the SP1's as logans replacement.  Based on what I've read the SP1's are light on the bottom end and I have no desire to calibrate a sub into a system.  

I plan on finding a way to hear them sometime in 2022.  Like the design and the look of them.