The price has been drastically reduced! 2023/9/12 The sales price was reduced by 70,000 yen! 2023/9/12 selling price 70,000 yen A high pass filter for popular super tweeters. In addition to ribbon tweeters such as the PT-R100, it is a network that you can enjoy with high sound quality by combining it with your own super tweeter. The exterior is slightly dull (Satoshi Yonejima)
Maintenance information: 2023.9.12 Operation confirmed
Accessories: instruction manual
Main specifications: Compatible impedance 8 ohms cutoff frequency 16 kHz/20 kHz/25 kHz switching blocking characteristics - 12 dB/OCT W150 x H80 x D104 mm 1 kg/unit
The price has been reduced. 201/11/9 sales price 75,000 yen Maintained! This is a cross 1200 Hz/2 way network. The bass is also extruded well, and since the high frequency adjustment range can be taken widely with 2 types of HF/MF attenuators, this model is easy to match with the desired sound quality. There are brown spots on the exterior (Wang Zhan)
Maintenance information: 2016.11.7 Maintained (terminal polishing, cleaning. ATT cleaning. Common line enhancements. Check the input/output waveform and balance, and check the sound output. The frequency characteristics were measured and there were no problems, so the capacitors were used as they were.)
Accessories: No accessories
Main specifications: Crossover frequency 1.2 kHz 8 Ω level control is continuously variable in the middle range up to -8 dB at 2 kHz, high range continuously variable up to -6 dB at 10 kHz W114 × H190 × D228 mm 1.8 kg
Maintained! It is an Altec 2-way crossover 800Hz network. Equipped with an attenuator Please use this when you want to change A5 or A7 to 800Hz. The appearance has oxidation and dullness, etc. Serial 15256/16464 (Tamura Eiji)
Maintenance information: 2020.9.21 maintained (input terminal replacement (banana plug compatible product). Clean the output terminals. ATT disassembly contact cleaning, contact grease application. A frequency characteristic measurement check (~ 42 kHz) is performed, and the original capacitor is continuously used for good results. (Input/output waveform and balance check, sound output check)
Accessories: No accessories
Main Specifications: Allowable Input 100W Input Impedance 8Ω Attenuator 1dB to 10dB Crossover Frequency 800Hz Dimensions W122×H140×D143mm Weight 1.6kg
Maintenance was completed in 2020, but there is a slight gap left on the ATT on one side. ALTEC's crossover variable frequency network. The graininess and sound cuts are also impressive. With this network, you can easily switch horns and drivers in various ways. There are stains and scuff marks on the exterior. Serial K340599/K340611 (Sasaki Shota)
Maintenance information: 2020.7.19 Maintained (rust removal (pickling) treatment for back terminal screws and bridge plates, front terminal orientation correction, increase, deadline change, SW contact cleaning, ATT disassembly, contact grease application, frequency characteristic measurement check (~ approx. 42 kHz), and continue to use the original capacitor for good results, input/output waveform and balance confirmation sound output check)
Main specifications: Crossover 500 Hz, 800 Hz, 1200 Hz switched with a jumper, banana plug input compatible W191 x H110 x D350 1.8 kg/bottle