Attenuators, insulation bushings, etc. have been replaced with new ones in 2018/11! The resistance value is lowered as much as possible by carefully polishing the terminals where the conduction is conducted. With a crossover of 7000Hz, it is ideal for tweeters such as 075 and 077. The appearance may be dull or deteriorated. Serial 19618/19692 (Satoshi Yonejima)
Maintenance information: 2018.11.28 Maintained (terminal re-tightening, cleaning. ATT cleaning Check input/output waveform and balance, and sound output check. Frequency characteristic measurement check. (The capacitor was replaced with AudynCap on 2015.12.10)
Key Specifications: Variable Level Control Crossover Frequency 7kHz 8Ω Weight 900g
It has been maintained. With a crossover of 7000 Hz, the best network for tweeters such as 075 and 077! Please enjoy using it in a way that suits your purpose, such as 2-way and 3-way. The appearance has a feeling of use such as dullness. Serial 17288 18098 (Asaine Tomoho)
Maintenance information: 2022.5.14 Maintained (housing wash terminal rust removal pickling cleaning insulation bushing & mounting screw replacement ATT new replacement frequency characteristic measurement check (~ approx. 42kHz) and continue to use the original capacitor for good results input/output waveform and balance check sound output check)
Accessories: none
Key Specifications: Variable Level Control Crossover Frequency 7kHz 8Ω Weight 900g
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
It's been maintained! With a crossover 7000Hz, the perfect network for tweeters such as 075 and 077! Please enjoy using it according to your purpose, such as 2-way or 3-way. The appearance is painted bald and dull. Serial 27176/27235 (Kimiya Miura)
Maintenance Information: 2022.5.22 Maintained (Terminal rust removal pickling, cleaning, insulation bushing & mounting screw replacement. ATT brand new replacement Frequency characteristic measurement check (~ 42 kHz) was performed and the original capacitor was continued to be used for good results. (Check input/output waveform and balance, check sound output)
Accessories: No accessories
Key Specifications: Variable Level Control Crossover Frequency 7kHz 8Ω Weight 900g
Maintained With a crossover of 7000 Hz, the perfect network for tweeters such as 075 and 077! Please enjoy using it in a way that suits your purpose, such as 2 way or 3 way (Sasaki Shota)
Maintenance Information: 2022.5.10 Maintained (Terminal Rust Removal, Pickling, Cleaning, Insulating Bushing & Mounting Screw Replacement. ATT brand new replacement. The capacitor had already been replaced elsewhere, but it was removed due to a difference in capacitance (modification), returned to the original capacitor left inside the housing, and performed a frequency characteristic measurement check (~ 42 kHz) to make sure there is no problem confirm. Check the input/output waveform and balance, and check the sound output.)
Accessories: none
Key Specifications: Variable Level Control Crossover Frequency 7kHz 8Ω Weight 900g
It has been maintained. With a crossover 7000Hz, the perfect network for tweeters such as 075 and 077! Please enjoy using it according to the purpose such as 2way or 3way (Oikawa Tetsuji)
Maintenance Information: 2022.4.27 Maintained (terminal rust removal pickling, cleaning, insulation bushing & mounting screw replacement. ATT brand new replacement Since the capacitor has been replaced elsewhere (made by DAYTON), a frequency characteristic measurement check (~ 42 kHz) is performed to confirm that there is no problem. (Check input/output waveform and balance, check sound output)
Key Specifications: Variable Level Control Crossover Frequency 7kHz 8Ω Weight 900g