Box or not box?

My vote would probably be for a decent quality coax driver, in a sealed TL. With some kind of suitably adequate driver in a vented enclosure for bass.

Multi way with drivers spread all over hardly ever manage to convince me of anything.
Multi way Horns are fun and good, but often spread apart too much.
Dipole is well and good, but not my preference.

Hard not to like point source imo.

How loud do you want to go? And what about frequency response?
 
The notion of "...want it to move easily" has many many parameters.
I'll assume by "move easily" we are talking about moving accurately, moving as accurate to the signal...theoretically we could remove all "obstacles" to movement of a cone...no surround, no spyder...an infinitely light cone, only the mass of a voice-coil. Practicality tells us we need a cone at least 100mm in size...why do you think headphones can sound so good?...the cone-mass approaching zero. Deleting a cone surround is impractical...some designers are deleting the voice-coil spyder...

Running without a baffle itself is utter nonsense, even the flat panel open baffle is silly....been there, done that...the last three octaves or so are relegated to washing the diaphragm to & fro, pointlessly trying to create music, the pressure wave having snuck around the short distance at the back only to be vacuumed up by the raified wave.







----------------------------------------------------------------------Rick......
 
Richard Ellis
You were right.
This is what I was looking for.
When I was young, I modified a dome tweeter. Removed the suspension and let it hang only in magnetic oil. It could move completely freely in the oil. It's my reference to how good it can sound.
Maybe I'm looking for an element without a spider that can handle lower frequencies. Do you know if there is one? Incredibly curious to find one. It does not have to create a base ... It should be easier to create an element that does not have to make long cone strokes.
 
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