Don't know about the current tiny rooms in Japan, thought they all had rice paper dividers between the "rooms" in one big space. Horns? Often they have no deep bass and the bamboo flutes etc. music that they like to listen to has not much bass content unlike the "western" music.
Back to the discussion at hand: You are forgetting what the LS3/5A was designed for and what they are doing brilliantly.
If you want to listen to music in a larger room than a broom cabinet or a van then perhaps you may want to listen first to a decent setup with a sub where the bass is removed from the LS3/5A and letting the LS3/5A do only midrange and HF duty before just stating that it is no good. You may be surprised how enjoyable that can be as several others can attest to.
I have difficulty understanding where you are coming from: You mentioned earlier that you will be missing the the Falcons which is suggesting that already you feel there is something missing from the Klipsch Cornwall setup. In a certain way it reads like you acknowledge that the HF and midrange of the Falcons is very good (because that is their strength, not their bass) yet in this last posting you say the opposite in that the midrange is no good.
Personally I find that after what 57, 58 years? of having had lots of different equipment the sealed mini monitors like the LS3/5A, ProAc Tablette 10, Kef CS1 and CS1A meet my current requirements the best. I fully expect the Q7 to fall in the same category with an even better voice reproduction of the human voice than the Tablette 10. And to get the best out of these small speakers they'll need an exceptional amplifier but that is another story.
If your needs are best met with the Klipsch and the Leben then I have no issue with that. Enjoy them but stop telling others that the LS3/5A or Q7 are no good.
You don't hear me saying that the Klipsch is no good, it just does not meet my requirements of realistic voice reproduction.
Let's leave it at that.
Peace.