I got a JBL L16 on FB Marketplace. Beautiful speaker and sounds pretty good but the app doesn't appear to exist any longer and the JBL Portable app doesn't support this speaker.
JBL Authentics L16 Review | SoundVisionReview
JBL Authentics L16 Review | SoundVisionReview
JBL Authentics L16 | Three-way speaker system with wireless streaming
JBL Authentics L16 | Three-way speaker system with wireless streaming
Handleiding JBL AUTHENTICS L16 (pagina 7 van 17) (Engels)