Horn Speaker Recommendations

 Seems many who have a horn bias have never heard a proper set. Since many of the things, they insist all horns do I never hear out of a proper setup full front loaded horn system.  My horns systems disappear when on.                                                                                                         Music sounds real whole complete and in realistic space not emanating from a source. I don't get overly large image size I'm not limited in any way on music type or SPL even very low SPL. I can and do fit large horns in small and average spaces and get great results seems I'm not alone in that lookup Japanese horn systems. I can do that with almost any type of loudspeaker. I just don't get why simple system set up and synergy eludes so many in this hobby. Still, no-one can like all things we like what we like and this is a hobby so have at it and enjoy it.                                    But if you just are offended by the very idea of large loudspeakers you will most likely not enjoy a horn. If you enjoy massive SS amplification a horn might not be best.  But if you're looking for near realistic sound something you can use all day without fatigue ability to sound great at high or low-levels propulsive force= the feeling of wanting to move your body, visual appeal [subjective I know] but I do get many + comments on my many horns people like to touch them take pics etc not so much with my Harbeths-then a horn may well be worth considering.                           I mentioned before best to learn as much as you can before going horn because if you do it right it might be the last loudspeaker pair you buy since another benefit of horns is the don't go obsolete quickly can be upgraded repaired in the field. And many hold their value or even increase in such. Good luck.

  "Seems many who have a horn bias have never heard a proper set. Since many of the things, they insist all horns do I never hear out of a proper setup full front loaded horn system. My horns systems disappear when on.                                                                                                        Music sounds real whole complete and in realistic space not emanating from a source. I don't get overly large image size I'm not limited in any way on music type or SPL even very low SPL. I can and do fit large horns in small and average spaces and get great results seems I'm not alone in that lookup Japanese horn systems. I can do that with almost any type of loudspeaker. I just don't get why simple system set up and synergy eludes so many in this hobby."
  You are 100% right. When people start chiming in with things like Fortes when the OP asked for all horn systems you have to wonder what people even think all horn systems are.  Mine is a two way system that goes from 18khz to 27hz. The bass bin is a derivative of the MCM 1900 MWM modified to be deeper and taller and is 60" wide at the mouth and 60" deep and 106" of travel from the woofer cone to the mouth of the horn. The Klipsch 402 horn lens crosses over at 500hz and goes to 18khz. Center to center they are 17 feet and I sit back from them normally at 12 feet or so. By listening to what many have for room size this is not out of the norm. The DB meter tells me that my favorite level is generally around 80 so I don't have these things loud most of the time. But when I do it is chest thumping perfect fidelity that is possible only with a horn.
 These two ways just disappear and the sound quality will raise goose bumps on your arms at times and all you horn nay sayers just have no idea what you are missing. All these negative comments on horns just tell me there are a lot of people who simply have never heard a set but they can tell you all about what they can't or won't be able to do. Anyone near southern middle Tennessee is welcome to stop in and hear for yourself. PM me and we can go from there. Twist my arm real hard and i will stop my day to listen to music;)

 

I attended the 2019 Munich high end show. Horn speakers were everywhere! I think all major and many minor brands were present. I auditioned many of them, and enjoyed the Avantgarde speakers most of all - I ended up going to their booth several times. They had the Duo Mezzo and Uno Fino models on demo. I later found a dealer where I could audition more comprehensively, and ended up acquiring the Duo XD model. 

OK correct me if I am wrong but going to the Avantgarde site I see this speaker has two woofers for the sub section but no horn for them. So if this is a cabinet sub and not a horn once again someone does not understand what was asked by the OP. Namely a pure horn set up.
  People it is plain and simple. Horn subs, true horn subs can't be small to produce the sound. A true full range horn system with good or better bass will not fit into these silly fru fru ultra modern cool looking designs. The very smallest commercially available worthwhile hi fidelity all horn full range speaker I know of is the Klipsch Jubilee. It is not however pretty like this Duo thing might be but it IS all horn.

As the OP, how I started on this adventure was because I heard the Avantgarde Uno Fino.  I had never heard any horn type speaker before.  That prompted my question and the wonderful learning experience from reading everyone's post.   I am embarking on building a modern house.  Consequently, a true horn will not fit our decor.  That means Klipsch, JBL and any big box vintage looking speakers are out.  

So if that means I would not be getting a true horn so be it.  At the end of the day if i buy a hybrid horn and I love the sound then I will be totally happy.