Maintained in 2020. This is Altech's 2-way, 800Hz crossover network. Equipped with an attenuator. Please use this when you want to change A5 or A7 to 800Hz. There are scratches, dullness, etc. on the exterior (Fujisawa Yukishi)
Maintenance information: 2020.9.22 Maintained (remove the input terminal to remove acid wash rust and clean. Remove the solder from the output terminals and clean them. ATT disassembly contact cleaning, contact grease application. A frequency characteristic measurement check (~ 42 kHz) was performed, and the original capacitor was continuously used because the results were good. Input/output waveform and balance check, sound output check.)
Accessories: none
Main specifications: allowable input 100W input impedance 8Ω attenuator 1dB to 10dB crossover frequency 800Hz dimensions W122 x H140 x D143 mm weight 1.6 kg
The price has been reduced! 2020/7/19 Sales price 75,000 yen Maintained! ALTEC's crossover frequency variable network. Grain and sound cuts are also a good impression. This network makes it easy to change horns and drivers. The appearance has dusts and scratches. The color of the printing on the top plate is different on the left and right. Serial 336145/336146 (Makoto Kono)
Maintenance information: 2020.7.19 Maintained (rear terminal screw and bridge rust removal (pickling) processing Front terminal orientation Corrected and increased deadline switching SW contact cleaning ATT disassemble contact Cleaning and contact grease application Frequency characteristic measurement check (~42 kHz) and continue using the original capacitor for good results input/output waveform and balance check sound output check)
Accessories: None
Main specifications: Crossover 500 Hz, 800 Hz, 1200 Hz can be switched with a jumper Banana plug input compatible W191 × H110 × D350 1.8 kg/book
* Currently sold products. An ARACRAFT network that custom JBL 3115. Detailed specs are unknown, but the crossover seems to be 500Hz. (Itsuro Mizushima)
Maintenance Information: 2021.5.17 Operation confirmed
Accessories: None
Main specifications: W120 × H155 × D183 mm 3.8 kg
This is a rare 3-way network. The cross will be 500/7,000 Hz. It is possible to build a 3-way system with this one unit. Level control is also possible, and it's easy to use. The appearance is dull and oxidized. Serial 512013/512014 (Tamura Eiji)
Maintenance information: 2023.11.8 operation confirmed
Accessories: instructions
Main specifications: cross 500/7,000 Hz -5 to -15 dB W120 x H153 x D175 mm weight 2.2 kg/unit