Horn speakers , high efficiency but not “shouty”


I am interested in a high efficiency horn with SET AMPS, in a 12 ft by 18 ft room. 9 ft ceiling .
I have narrowed my choices down to Charney audio Excalibur http://charneyaudio.com/the-companion-excalibur.html
and rethm maarga v2
https://www.google.com/amp/s/audiobacon.net/2019/04/18/rethm-maarga-v2-loudspeakers-listening-sessio...
would appreciate input from any one who has heard the above speakers or someone who has a similar system . 
listening choices are vocal music , no classical music.
Very rarely might want my system to play loud party music .(extremely rare ) does not have to play it like solid state system. Thanks in advance 


newtoncr
I don’t see horns in either of those two examples. What am I missing?

I’m old school. I have been living with Altec Lansing 604Cs for 44 years. 101db efficiency, 16 ohms, driven by Futterman OTL3s converted to triode (eight General Electric 6LF6 tubes per bloc).

The Tannoys are similar.
Agree w Volti mods for Klipsch.
Mods cost more than the K-horns(used~ ‘70’s vintage) & Worth every penny.
Took a couple of weekends.
Another vote for Charney.  I have been by his place a couple times for a demo and they are special.  I have BD-Design and love them but the Charney will be in my 2nd system... soon.  FYI, I very much like the Voxative driver Charney uses.
I'm a bit surprised that nobody here has yet mentioned early James B Lansing Corner Horn speakers.  These used the earliest and biggest of their famous "potato masher" horns (with diffraction grids) for both midrange and treble.  To my ears the JBL C31's were the most accurate and realistic horn speakers ever made.