Professional cross-800Hz network. It's a vantage and exhilarating sound. How about making a 2WAY horn system with 16Ω units? There are Kusumi and rust on the main body. Serial 7293/8121 (YONEJIMA Satoshi)
Maintenance Information: 2021.6.28 Maintained (terminal rust removal (pickling) treatment, cleaning, insulation bushings & mounting screws replacement. The adhesive fixing of coils inside the housing is reinforced with silicone. ATT (SW type) contact cleaning. Frequency characteristics measurement check (~42 kHz) and continue to use the original capacitor for good results. Input and output waveform and balance check, sound output check)
Accessories: no accessories
Main specifications: crossover frequency 800Hz impedance 12-16Ω W122 × H154 × D132mm 1.9 kg/1 unit