Here is an example of a Point Source.
https://www.genelec.com/ones-press-release
“THERE ARE STILL ONLY TWO PROPER WAYS FOR A TRANSDUCER TO PROPAGATE SOUND IN A ROOM: A POINT SOURCE, AND A LINE SOURCE. ANYTHING ELSE, OR EVERYTHING IN BETWEEN, IS A COMPROMISE.
Nothing has changed in theoretical acoustics since John William Strutt (Lord Raleigh) published The Theory of Sound in 1877.”
https://www.youtube.com/results?search_query=SAM™+Coaxial+Studio+Monitors
Is this a LINE SOURCE?
This is a bulk source
Might even be weaponized
lol 
Proper height will depend upon if its nearfield, or in room.
I found in a nearfield situation that the height of a point source speaker can make or break the sound. And, its been for me a matter of fine tuning. One eighth of an inch higher, or lower, can change what is heard. That is why I concocted a height and angel adjustable nearfield speaker platform from a drum rack I no longer use.
A picture is worth a thousand words. So, it might be best to start with some photos and let questions be asked after?
Thais cool with a capital “C”.
Thanks, Baldy.
Believe me when I say the height and speaker angle changes everything. Not only with my present speakers, but all small speakers I have owned. Its like fine focusing a camera sharply before taking the picture. Being just off a tad? And the realism effect changes. For that reason, I believe most audiophiles can not know what their speaker’s potential really is. Dang! Speaker cables all of a sudden become the lifeblood when you begin to hone in on target.
I almost forgot to mention. The drum rack also allows for distance of how far apart to be adjusted. That too makes a difference. Experimentation is needed in all these areas. Wider rack tubes are available if you need more distance. I sit so close getting wider is not needed. Also filled the tubes with kitty litter to deaden them from resonating. Tap the tube, and all you get is a dull thunk.
Here is a commentary by Steven Stone when observing this phenomena of fine placement… (he was only working with adjustable angle, not height. Both will effect what is perceived).
> After initial setup, I found that extremely small changes in the speakers’ physical locations could result in big differences in soundstage presentation. Even a cat brushing the speakers as it walked across my desk could move the speakers enough that they required repositioning.
https://hometheaterreview.com/role-audio-canoe-loudspeaker-reviewed/
