Soundstage and explosive dynamics?

Kosst.  Actually it's not my cult,  my speakers are not all out horn's. Only the tweeter is a horn, the mid and bass are regular dynamic cones.  
 But I have owned quite a few speakers many mid efficiency like Vander Steen, reference 3A, Dynaco, Tannoy's, Polk SDA's
 Ive owned low efficiency panels such as the Apogee divas with high-powered solid-state 
 And  I have owned hybrid horns but where the horn covers most of the frequency spectrum down to about 200 Hz. 
 Trouble is I had to blend a woofer and a sub to those and felt like I couldn't get it 100% so I am moving away from them.    I just can't stand to listen to you postulate about something you obviously know absolutely nothing about. My pet peeve is going on these forums and seeing all this misinformation by people who speak with total authority. 
 Just admit you're wrong and that you've had a very little or perhaps no experience with horns. 

This has been a fascinating thread to read, and I have to give thanks to Kosst for his/her insistence and multiples of repetition which has allowed for an exceptional discussion with educational and informative (at least for me) posts by many who obviously know and understand horn speakers so well. So Thank You K for being so minded on the subject...it has allowed for a very open discussion, in response.

I did a lengthy in-home demo of the Volti Audio Rivals, a speaker that has been recommended to the OP. This was my first time living with a horn-hybrid speaker. The 15 inch paper cone woofer operates below 400HZ (I believe, but I’m not 100% on this). It is an excellent speaker and offers the OP a check on all four of his attributes.

My 2ch audio room is very ’normal in size (read not large).

The Volti’s had very good imaging, and actually imaged slightly better than my current speakers.They also disappeared in the room and were not ’honky’ or ’shouty.’ Size-wise they also felt normal in my room. They are also very flexible with respect to room placement and with easy tuning via the external crossover network by resistors and the capacitor. The internals are easily accessible and very well laid out.

Early in the thread there was a mention of the Tekton Design Double Impacts as a recommendation. These are my current speakers (with the basic upgrade). I can also recommend these for all four attributes as well.

I enjoyed the Rivals so much that I am open to one of Greg Roberts’ full horn designs, which require some time as I need to save up for it.

Both the Rivals and the Double Impacts are great speakers, but are different.

Again a massive word of thanks to so many who have posted such valuable information and for your experience and wisdom on the topic.

Kosst you say "at the cost of focussed dispersion".    I find it odd that you regard that as a negative. I myself and plenty of others that I know regard that as one of the positives of a horn. That way you get less unwanted room interactions.   Definitely not good for entertaining though as the sweet spot is small. Anyhow I understand  that you're saying you don't like horn's and I'm completely fine with that, to each their own. It's just when you're saying things that are blatantly false that I feel the need to set the record straight.