Maintained in 2015. A network with a crossover frequency of 7000 Hz. Ideal for MID/HIGH use in 3-way systems using the JBL 2420/2440. There is a feeling of use on the exterior, such as dullness and small scratches. Serial 1569/14189 (Murakoshi Yoichi)
Maintenance information: 2015.10.29 maintenance (terminal polishing, cleaning, insulation bushing & mounting screw replacement. ATT exchange. Fixed a wiring mistake. Capacitor replacement. Check the input/output waveform and balance, and check the sound output. Frequency characteristic measurement check (~ 42 kHz)
Accessories: none
Main specifications: crossover frequency 7 kHz, allowable input (continuous program), 50 W impedance, bass range: 12 to 16 ohms, treble range: 12 to 16 ohms, treble attenuation/variable volume, mounting hole W140 x 108 mm 0.7 kg