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
Thanks for reminding me. Your discussion of Tannoy and Fyne reminded me of point source speakers.

Because I was interested in a full range linear performance I dismissed point source speakers from my search in favor of multiple driver speakers thinking they can do a better job maintaining linearity at the frequency extremes. After many speaker demos, I’ve settled on the Magico A5 which I should be able to fund hopefully in a few months.

Simultaneously I was looking for another speaker capable of being driven by a flea watt 300B amp. I was looking for uncolored neutrality and frequency linearity while being able to fit into my home (no massive horns). I’ve finally settled on the Volti Audio Rival 100dB, but wishing for the Volti Vittora’s 102dB performance (likely too large for my room). But I should also consider the “point source” speaker
Coherent Audio MGRA 15 Signature 102dB - Fyne and Tannoy seem less efficient

Funny how sonic differences between flea watt speakers seem less important relative what the 300B the brings to the table.  Maybe it’s the difference between accuracy and midrange warmth magic.
Kennyc, I'm very lucky. I have the only speakers I ever want to own. You could say I'm married to them. The Muraudio gets decent reviews but IMHO it is a bad design. The panels are curved which is a terrible thing to do to an ESL as you create a non linear situation. Diaphragm goes back it loosens, forward it tightens. This is the reason they have to cross at 750 Hz. Right in the middle of the vocal range. 120 degrees is to much dispersion. To minimize room interaction you do not want any more than 45 degrees. For the same money you can get Sound Labs 545's. No curved panels and the array covers 45 degrees. No crossover. Much more diaphragm area and linear panels can take much larger excursions without distortion. Add subwoofers ( the Muraudio needs them also) and you will be in heaven. The only thing better will be larger Sound Labs. 
Read Roger Sanders's white papers.  http://sanderssoundsystems.com/technical-white-papers
He is the original designer of Martin Logan's curved ESL panel. 
The legacy Valor for speakers and a hegel h30 with a 818v3 feeding it. Most of the others ive already gotten to hear.
I had the chance to listen at Verity Audio Monsalvat a couple of times. For me I had the chance to hear a glimpse of the Nirvana.