like Jubilees only much smaller... like standmount or towers

If you are talking about Klipsch Jubilees the short answer is no. To make it down that low in the midrange the horn has to be that large. 

Speakers do not have to be physically large to produce prodigious output if the power is available. I am a big fan of mini monitors on stands with subwoofers such as Harbeth P3s or Falcon Acoustics LS3 5As. Add two balanced force subwoofers from KEF or Martin Logan and digital bass management and you will have a mighty fine system for a smallish room. 

Horns are really about constant directivity. As mentioned above large horns are needed for low crossovers into the horn. The Klispch is what 400hz and the JBL 4367 is 700hz. While JBL stand mounts and towers are 1.2-1.5k-ish crossover. That lower crossover is the real advantage to horns. 
 

there are other ways to get control directivity with cardioid bass. Like Kii for example where the back drivers are out of phase with the front and it is all dsp controlled. I have never heard them. 
 

as for the 4367, I have owned them for about a week and it is by far my favorite speaker I have owned. Both refined, smooth, very detailed and powerful at the same time. Amazing texture in the 40-100hz range. They can be more rolled off in the highs than say the Cornwall (was a touch harsh to me) as the 4367 has a few trim adjustments that make a big difference. You can run them a little rolled off or a little tipped up. 

there are lots of powered monitors in the pro world. A horn example that comes to mind is the JBL 708p. I think Erin’s audio corner measured and reviewed them. But that is a whole other world for a different forum. 
 

@canibefrank Wrote:

like Jubilees only much smaller

Klipsch Corner horns come to mind.

Mike

Danley SH50 - smaller than jubilees, horn clarity & sensitivity and constant directivity 37Hz-24KHz @ -10dB

https://www.youtube.com/watch?v=YuUFmJ2etI4

There are a used pair on Reverb right now for ~$4500.

Getting down to 20Hz, you might need to look into some tapped horns from danley again, or if you or any friends are into DIY, you could save cash building your own tapped horn.  I have a friend who actually has been running this exact setup as his main home stereo, and it is absolutely huge sounding, even in a small room.

This is a smaller and more affordable solution than the jubilees.  Don't be afraid of "pro" audio for home use.

Good luck and have fun!

Pispeakers. You could try here. Might be too much diy for you. I’ve not heard and of the speakers but then I’ve never heard the jubilee either.