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
JBL Olympus specifications
JBL SR8 Olympus Speaker System (Lot 3220 - Modern Art & DesignMay 27, 2021, 10:00am)