JBL 4349 at low listening levels.

I find that horns are very good at low levels. I am not a fan of horns, but this is something that they do well. You can further improve low levels by using tube amps.

According to this db chart, your target listening level is fairly low. Full-bodied requires pressurizing the room to some degree. Difficult to achieve with small drivers and a small cabinet - at a low volume. Of course, you can still get excellent SQ.

Years ago, at T.H.E. Show, I heard the JBL K2 S9900 in a very small hotel room - maybe 10’ x 15’ - well damped. At around 60 db, the SQ was phenomenal. Definitely full-bodied. It was one of my favorite rooms.

This owner loves his JBL 4367's.

Get a pair of Quad ESL's - 57's, 63's or some of the newer Chinese ones. They all excell at low-to-moderate SPL's. I have two pairs of 57's. I prefer them over my JBL 166's and 4312's, though both are better for loud listening when I want to rock out!

Jbl 4349 is for like 90+ dB listening levels.

For 50-55 db, get some hifiman headphones.. or get some niche in-ear earphones and stick it in your ear (small drivers/associated impulse response, clarity, detail, etc should work well for 50-55 dB sleeping levels). One thing to watch out for is that snoring levels may easily exceed the 50-55db and drown your music.

My question is do the JBL’s 4349 play full bodied and dynamic at around 50-55 dbs?

For 50-55 db, get some hifiman headphones.. or get some niche in-ear earphones and stick it in your ear (small drivers/associated impulse response, clarity, detail, etc should work well for 50-55 dB sleeping levels). One thing to watch out for is that snoring levels may easily exceed the 50-55db and drown your music.

Will the helpful advice ever cease?

I  have a pair of 4349s and they do very well at low listening levels. The 4349s are hybrid horns, the bass unit is a traditional 12 inch cone in a front-ported enclosure. LF horns are not typically compact nor are they inexpensive unless you are building them yourself.Klipsch La Scala is about as compact as you will get there, the Klipschorn and Jubilee are very large, Horns units from Avantgarde are difficult to source and large, but some are available with a sub and can occasionally be had used.. One solution I have seen is to put Klipsch Heresy on a stand, which would present the two horn elements at ear height.