Maintained! JBL's large speaker system equipped with a 46cm woofer. The overwhelming volume of bass played by super-grade woofers is richer and more impressive than 4343 and 4344. Sufficient margin is secured for low-frequency playback, and sounds that are driven loudly are expressed with plenty of punch without losing their contours. Serial 10313/10734 (Miura Kimiya)
Maintenance information: 2022.3.7 maintained (terminal rust removal pickling, cleaning, abolishing the connector, installing the round terminal, replacing the screw, and installing. Remove deteriorated solder and re-solder. The terminals on the board are soldered. ATT new replacement INT/EXT switching SW contact sulfide removal, cleaning. Frequency characteristic measurement check (~ approx. 42 kHz) is performed and the original capacitor is continued to be used for good results. I/O waveform and balance check, sound output check. Driver maintenance (magnetic circuit rust removal, gap cleaning, center adjustment, sound absorbing material replacement, terminal contact cleaning) tweeter maintenance ( (Horn disassembly cleaning, magnetic circuit rust removal/gap cleaning, terminal contact cleaning)
Accessories: Saran net, diffuser
Main specifications: 4-way, 4-speaker, bass reflex system, floor type use unit 2245H/2122H/2420/2405 95db/W/M 8Ω W765 × H1096 × D470mm 104 kg/1 bottle