Interior and exterior maintenance have been carried out and brushed up! JBL's 4311A was developed as a speaker for monitors in studios, etc. I would definitely recommend this system to customers who listen to jazz and rock, with its overall sound tightness and cool low frequencies. The exterior is generally clean due to maintenance. Serial 27167/27330 (Tamura Eiji)
Maintenance information: 2023.6.18 Maintained (exterior repair/all paint, new saran net created, woofer cone paper paint, mid/tweeter cone paper coating/urethane ring newly created, network maintenance (internal connection terminal (faston) replacement with a new one. ATT brand new replacement. A frequency characteristic measurement check (~ about 42 kHz) was performed, and the original capacitor was continuously used for good results. (Check input/output waveform and balance, check sound output)
Accessories: saran net
Main specifications: 3 way, 3 speaker, bass reflex system, bookshelf type, frequency characteristics 45 Hz to 15 kHz, allowable input 40 W (RMS), 8 ohms, crossover frequency 1.5 kHz, 6 kHz, output sound pressure level 91 dB, dimensions W362 x H597 x D298 mm, weight 19 kg