Litz coils or solid core?

[gordonhunsaker]

I couldn't find any data for the tweeter...could we have some inductance measured for these speakers?

If you are looking for data on Accuton C2-11, see attached:

 

[Coil2021]

This is an example of litz wire inductor.

Benefits of Using Litz Wire:

1. Reduce AC losses in high frequency windings
2. Increased efficiency
3. Mitigation of Skin Effect
4. Mitigation of Proximity Effect
5. Minimum eddy current losses
6. Lower operating temperatures
7. Reduced footprint of final product
8. Substantial weight reduction
9. Avoidance of “hot spots”

Subjectively for me it's just improved clarity vs other inductors in some instances - not a matter of enhancing a higher freq. response anymore than a litz lead to the driver.