Maintained in October 2022! A network with a crossover frequency of 7 kHz. Ideal for MID/HIGH 3-WAY systems using the 2440. On the exterior, paint is bald and oxidized (Yonejima Satoshi)
Maintenance Information: 2022.10.7 Maintained (Terminal rust removal, acid cleaning, insulation bushing & mounting screw replacement. ATT replacement A frequency characteristic measurement check (~ approx. 42 kHz) was performed, and the original capacitor was continuously used for good results. Input/output waveform and balance check, sound output check.)
Accessories: no accessories
Main specifications: crossover frequency 7 kHz allowable input (continuous program) 50 W impedance bass range: 12 to 16 ohms treble range: 12 to 16 ohms treble attenuation/variable volume mounting hole W140 x 108 mm 0.7 kg
Maintained! A network with a crossover frequency of 7000 Hz. Ideal for MID/HIGH use in 3-way systems using the JBL 2420/2440. In addition to dullness and small scratches on the exterior, there is a feeling of use such as paint peeling. Serial 24693 24691 (Hiroki Aso)
Maintenance information: 2024.5.4 maintained (12 terminal terminal mounting screws, 24 insulating bushings replaced for deterioration. The capacitor used for terminal cleaning is a Dayton attenuator VR contact cleaning crossover 7000 Hz check)
Accessories: none
Main specifications: Crossover frequency 7 kHz allowable input (continuous program) 50 W impedance low range 12 to 16 ohms treble range 12 to 16 ohms treble attenuation/variable volume mounting hole W140 x 108 mm 0.7 kg
Maintained! A network with a crossover frequency of 7 kHz. Ideal for MID/HIGH 3-WAY systems using the 2440. On the exterior, there is a feeling of use, such as paint peeling off and scratches scattered around. Serial 17041 17049 (Hiroki Aso)
Maintenance information: 2023.3.31 Maintained (terminal rust removal, acid wash, insulating bushing & mounting screw replacement, ATT brand new replacement, frequency characteristic measurement check (~ approx. 42 kHz), continue using the original capacitor for good results, input/output waveform and balance confirmation sound output check)
Accessories: none
Main specifications: crossover frequency 7 kHz allowable input (continuous program) 50 W impedance bass range: 12 to 16 ohms treble range: 12 to 16 ohms treble attenuation/variable volume mounting hole W140 x 108 mm 0.7 kg
Maintained! A network with a crossover frequency of 7 kHz. It is ideal for MID/HIGH for 3-way systems using 2440. There is a small wound (Oikawa Tetsuji)
Maintenance information: 2024.4.17 Maintained (2 VR attenuators, 12 screws, 24 insulating washers replaced)
Accessories: none
Main specifications: crossover frequency 7 kHz, allowable input (continuous program), 50 W impedance, bass range: 12 to 16 ohms, treble range: 12 to 16 ohms, treble attenuation/variable volume, mounting hole W140 x 108 mm 0.7 kg
2023.12.18Maintained professional cross 800Hz network. It is used in the 4320, etc., and the low frequencies are pushed out smoothly, giving the impression that the clarity of the mid-high range has improved. This network is useful for creating 2-way systems where woofers have a certain amount of area. How about making a 2-way horn system with a 16Ω unit? There are stains and rust on the main body. (TERAMOTO Hidehiko)
Maintenance information: 2023.12.18 Maintained (terminal rust removal treatment, cleaning, mounting screw replacement. SW type ATT contact cleaning. Frequency characteristics are measured and checked, and the original capacitors are continuously used for good results. (Check the input/output waveform and balance, check the sound output)
Main specifications: crossover frequency 800 Hz impedance 12 to 16 ohms W122 x H154 x D132 mm 1.9 kg/1 unit
Maintained! Professional crossover 800 Hz network. It's an exhilarating sound with a good view. How about making a 2-way horn system with a 16 ohm unit? In addition to dullness and small scratches on the exterior, there is a feeling of use such as paint peeling. Serial 8091 8074 (Hiroki Aso)
Maintenance information: 2024.5.4 maintained (12 terminal terminal mounting screws, 24 rust and insulation bushings, deterioration replacement. The capacitor used for terminal cleaning is a Dayton attenuator switch contact cleaning crossover 800Hz check red terminal cap partial deterioration replacement)
Accessories: none
Main specifications: crossover frequency 800 Hz impedance 12 to 16 ohms W122 x H154 x D132 mm 1.9 kg/1 unit
Maintained! The popular crossover 500 Hz. Please use it with the JBL2440/2441 driver. There is a sense of extrusion and granularity, and the connection to high frequencies is also natural. You can enjoy stretchy low frequencies and tense high frequencies. It is essential for constructing large systems centered around 38cm units (Sasaki Shota)
Maintenance information: 2024.5.4 Maintained (12 terminal terminal mounting screws replaced, 24 insulating bushings replaced. Terminal area cleaning. Attenuator SW contact cleaning. Crossover 500Hz check OK)
Accessories: none
Main specifications: crossover 500 Hz network impedance 12 to 16 ohms high frequency level control 6/8/10 dB W121 x H153 x D130 mm 1.9 kg
The price has been reduced. 2023/9/22 Sales price 69,800 yen ※Since this is a remodeled product, it is currently sold. 3-way network. The details of the crossover are unknown. The attenuator comes with FOSTEX's AT-50H (16 ohms for the middle range only). There is a slight creak, but the sound output has been confirmed. I even took pictures of the interior. Please refer to it. There is no original terminal block (Sasaki Shota)
Maintenance information: 2023.9.22 sound output confirmed
Accessories: none
Main specifications: 3-way network W210 x H235 x D158 mm 4.5 kg (actual measurement)