Maintained! A network with a crossover frequency of 7 kHz. Perfect for MID/HIGH on 3-way systems using 2440. The exterior has dullness and paint deterioration. Serial 10523, 10528 (Murakoshi Yoichi)
Maintenance Information: 2022.10.4 Maintenance (Terminal Rust Removal, Pickling, Cleaning, Insulating Bushing & Mounting Screw Replacement. ATT brand new replacement. A frequency characteristic measurement check (~ 42 kHz) was performed, and the original capacitor was continuously used for good results. Check the input/output waveform and balance, and check the sound output.)
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