There's a new mid-driver from JBL, the 2164.
It is a 4" cone unit used in the VTX20 (smaller) Horn Loaded Line Arrays.
Seems to be a carefully developed unit, subject of a patent and an AES convention paper by Alex Voishvillo.
As is now usual for JBL product developed for internal use, there's not much info at the JBL Pro website.
Anyone have any information on it?
Or a copy of the convention paper, allowed by the AES for presentations not in the Journal I believe.

David