Maintained! A crossover 500 Hz network used for the A5. The sound loss is very good, probably because of the large condenser. It has an overhang and is perfect for cutting! It's a very attractive sound not only for Altec users but also for 500Hz networks. The exterior has aging scratches, dullness, etc. (Kobayashi Hitoshi)
Maintenance information: 2023.5.10 Maintained (coil capacitor re-fixed, reinforced. Rust removal treatment for screws such as screw-type ATT. Panel crack bonding treatment. A frequency characteristic measurement check (~ approx. 42 kHz) was performed, and the original capacitor was continuously used for good results. Input/output waveform and balance check, sound output check)
Accessories: none
Main specifications: crossover 500 Hz HF gain 4 stage switching (short plate) W203 x H270 x D115 mm 7.2 kg (actual measurement)