The JBL family of acoustical lenses was originally designed for stereophonic audio systems for motion picture theater applicatio
JBL 2390 JBL 2390 Linsen mit Serpentinen Faltung, JBL 2309 Hörner High- En | EUR - Gebrauchte-Veranstaltungstechnik.de - Der Marktplatz für gebrauchte Veranstaltungstechnik
![JBL 2390 (2309 and 2310) lenses and horns -- Los Angeles area sale only Photo #2767805 - US Audio Mart JBL 2390 (2309 and 2310) lenses and horns -- Los Angeles area sale only Photo #2767805 - US Audio Mart](https://img.usaudiomart.com/uploads/2020/06/5/649632425_thumb_d7a4f6925dea0e86b43cb30bd79ea057.jpg)