Horn Speaker Recommendations

I heard the Avantgarde Duo Mezzo horn loudspeakers at this years Axpona show. They sounded and looked spectacular to me. Up there with MBL for the best sound at the show. Claimed efficiency is 107 dB/W! No problem filling any room with dynamic sound using a modest amplifier.

mrpaul....I am curious what is on your short list of horn speakers?

Great thread so far...
Ive had numerous Klipsch models and the Forte II driven by low class A power Pass ACA DIY monos sound great in my second system after installing Crites crossovers. 
These look really interesting and may be in my future for my main system
https://www.audioxpress.com/news/klipsch-refreshes-iconic-cornwall-speaker-at-rocky-mountain-audio-f...

The Cornwall (can be used in a CORNer or against a WALL) is essentially a big Heresy and a great sounding loudspeaker. I desperately wanted a pair when I was 17 but could only afford the Heresys. 
It has less of a phase problem than the K horn and I think images better.
Today I would plug the port and use a subwoofer.

It has been awhile but I thought I would update everyone on my speaker purchase.  After going through an exhaustive period of research and listening I have decided on Viking Acoustic Grande Voix.  I am custom ordering them in a black main cabinet with the horn being a natural wood.  They take around 4 months to build.  They have just picked out the timbers for the horns.  
Now my next steps will be to try and sell the Mola Mola Amplifiers I purchased and never used for a different speaker and match a tube amplifier with the Grande Voix.