The edge was replaced in 2019, network maintenance utilizing the original capacitors, and interior and exterior maintenance were carried out, and restoration was carried out. A masterpiece 2-way studio monitor. The enclosure is an original 4502. The sense of energy that comes right in front of JBL, and the dynamic, and energetic sound quality are truly classic American sounds (Murakoshi Yoichi)
Maintenance information: 2019.10.7 maintenance completed (exterior maintenance (exterior repair/full painting, saran net cleaning/reupholstery.) Woofer maintenance (edge replacement, cone paper paint.) Driver maintenance (magnetic circuit gap cleaning, center adjustment, sound absorption material replacement, screw replacement, terminal contact cleaning, etc.) Network maintenance (terminal rust removal and acid washing, cleaning, insulation bushing & mounting screw replacement, SW type ATT contact polishing, cleaning, frequency characteristic measurement check, continuous use of the original capacitor for good results ~ approx. 42 kHz, input/output waveform and balance check, sound output check.))
Accessories: saran net, diffuser
Main specifications: unit configuration 2215B, 2420+2391, 3110 crossover 800 Hz, W610 x H770 x D520 mm, weight approx. 40 kg/book