A different kind of panel speaker

[hex168]

Yamaha did something with this back in the day, too.

Long thread at DIYaudio on exciter-driven panels:

A Study of DMLs as a Full Range Speaker

Edit Nov 5, 2022: nice analysis and summary of DML materials and response with python script by @homeswinghome https://www.diyaudio.com/community/threads/a-study-of-dmls-as-a-full-range-speaker.272576/post-7159983 Edit oct 27, 2021: a nice Google drive library of DML publications by vdljev...

www.diyaudio.com

 

[hex168]

Did I just reply to a thread revived by spam? Oops.

 

[Rednaxela]

Hard to tell. Only got the en mi caso part (I think).