It has been maintained. With a crossover of 7000 Hz, the best network for tweeters such as 075 and 077! Please enjoy it in a way that suits your purpose, such as 2way and 3way (Yoichi Murakoshi)
Maintenance Information: 2022.5.12 Maintenance (Terminal rust removal, pickling, cleaning, insulation bushing & mounting screw replacement. ATT new replacement Frequency characteristic measurement check (~ about 42kHz) is performed, and the original capacitor is continued to be used for good results. (Check input/output waveform and balance, sound output check.)
Accessories: none
Key Specifications: Variable Level Control Crossover Frequency 7kHz 8Ω Weight 900g