JBL M9500 K-2 vintage horn speakers Photo #996799 - US Audio Mart
Returning Vintage JBL Studio Monitors to Life with Iwan Arjanto - Resistor Magazine
JBL advert 1958 | Монитор, Электроника, Аудио
Testing JBL 4429 Studio Monitor Horn Speakers - Vintage Audio - Part 5 - YouTube
Anyone familiar with these? Late 60's vintage JBL C50 Olympus S7r. 15" woofer with massive 20 lb. magnet; 15" passive radiator; and high frequency horn. Had the woofers rebuilt two years ago