The disposal price has been reduced. Member discounts are not applicable. 2024/12/16 sales price 50,000 yen. Maintained! This is a rare ALTEC 615B network. Special crossovers called 1500 Hz rarely arrive. If you've been looking for one or want to try it out, don't miss this opportunity! You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.12.14 Maintained (condenser mounting, crossover check)
Accessories: none
Key Specifications: Crossover 1500 Hz 16 Ohms
The disposal price has been reduced. Member discounts are not applicable. 2025/12/16 sales price 50,000 yen. Maintained! This is a rare ALTEC 615B network. Special crossovers called 1500 Hz rarely arrive. If you've been looking for one or want to try it out, don't miss this opportunity! You can see the exterior, dullness, and feeling of use (Murakoshi Yoichi)
Maintenance information: 2024.12.14 Maintained (condenser mounting, crossover check)
Accessories: none
Key Specifications: Crossover 1500 Hz 16 Ohms
The disposal price has been reduced. Member discounts are not applicable. 2025/5/3 sales price 50,000 yen ※1 bottle only, lid missing. A rare signature type. It was maintained in 2019. It is an ideal network for a combination of a 1200 Hz 38 cm crossover and a 1 inch driver. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2025.4.20 sound output confirmed
Accessories: none
Key Specifications: 16Ω
The disposal price has been reduced. Member discounts are not applicable. 2025/3/14 sales price 35,000 yen ※1 bottle only, lid missing. Very few in stock! 500Hz 2-way network with double woofer! The strong sound that comes out with the addition of a thick mid-range that feels like an old JBL is attractive. This is a must-have item for those who like the JBL sound that comes out loud with a double woofer. There is a dent on the bottom plate corner. Serial 14316 (Murakoshi Yoichi)
Maintenance information: 2025.3.14 sound output confirmed
Accessories: none
Main specifications: 2-way network crossover frequency 500 Hz impedance: LOW4Ω/HIGH16Ω level control (high range) 0 to -8 dB (2 dB steps) W159 x D160 x H208 mm 5.5 kg
Maintained. It hasn't arrived in a long time! High input resistance type network developed for large halls such as theaters. There are only professional models, and the model has good sound loss. This is a 500Hz crossover that is essential for a 2-way system with a 38cm woofer and a 2-inch horn driver (Shota Sasaki)
Maintenance information: 2025.10.18 Maintained (restored to original due to internal modifications. Rework the terminals. (Screw replacement)
Accessories: none
Main specifications: 2-way network crossover, 500 Hz, 8 ohms, high frequency side, 16 ohms, high frequency attenuation 0, 2, 4, 6, 8 dB/5.5 kg adjusted with strapping bars
Maintained in 2024 July! The grain of the sound is clear and the smoothness of the connection has also been improved. This is a 1200 Hz crossover network ideal for the combination of a 38 cm woofer and 1 inch driver. There are stains, scratches, and a feeling of use on the exterior. Serial 15050/15221 (Tomonori Asaine)
Maintenance information: 2024.7.30 maintained (input terminal terminal mounting screw rust and bushing deterioration replacement terminal ultrasonic cleaning terminal replacement attenuator SW contact cleaning crossover check)
Accessories: none
Key Specifications: Crossover 1200 Hz 8 Ohm 3 Position Switch with Level Control
Maintained in 2015. A network with a crossover frequency of 7000 Hz. Ideal for MID/HIGH use in 3-way systems using the JBL 2420/2440. There is a feeling of use on the exterior, such as dullness and small scratches. Serial 1569/14189 (Murakoshi Yoichi)
Maintenance information: 2015.10.29 maintenance (terminal polishing, cleaning, insulation bushing & mounting screw replacement. ATT exchange. Fixed a wiring mistake. Capacitor replacement. Check the input/output waveform and balance, and check the sound output. Frequency characteristic measurement check (~ 42 kHz)
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. 3-way network It is a network that was also used for JBL studio monitors, and the input terminal part and level control unit are independent so that it is suitable for integration into an enclosure. Only the middle range has 16Ω specifications (Oikawa Tetsuji)
Maintenance information: 2025.10.7 maintained (adhesive repair contact part cleaning due to network switch damage. ATT VR internal dismantling cleaning terminal screw replacement and ultrasonic cleaning
OSC check OK)
Accessories: none
Key Specifications: Crossover 800Hz, 8.5kHz 4.4 kg
The disposal price has been reduced! (Not eligible for member discounts) 2025/8/30 sales price 25,000 yen A crossover network with exactly the same structure as the company's X8. This network is recommended when using BB4 with a T350 or 12TRXB. The exterior has dullness, threads, and scratches. (FUJISAWA KOSHI)
Maintenance information: 2025.8.30 Operation confirmed
Accessories: No accessories
Main specifications: crossover frequency 3,500 Hz 8 ohms allowable input 100 W external dimensions W114 x H89 x D92 mm weight 680 g
※Currently sold, it is cheap because it is slightly crunchy. Attenuators for Pioneer speaker systems. Variable attenuation in 2 dB steps is possible between 0 and -22 dB without changing the impedance seen from the amplifier side. There are wounds and dullness (Oikawa Tetsuji)
Maintenance information: 2025.9.10 operation confirmed
Accessories: none
Main specifications: impedance 8 ohms L type constant resistance method 0 to -22 dB (2 dB step switching) W90 x H90 x D146 mm 0.5 kg
The price has been reduced! 2025/8/30 sales price 29,800 yen An easy-to-use 800Hz crossover network. It has exactly the same structure as the company's X36. It can be used in combination with driver units T25A and 1823M. There are scratches and scratches on the exterior. (FUJISAWA KOSHI)
Maintenance information: 2025.8.30 Operation confirmed
Accessories: No accessories
Main specifications: 800Hz 8Ω 100W W114 × H121 × D92 mm 1.8 kg
The disposal price has been reduced! (Member prices are not applicable) 2024/8/30 sales price 118,000 yen Maintained! Rare 16 ohm specification. A 1.2 kHz crossover network used in JBL Metrogons and early Harkness. The company used it when combining a 130A woofer and a 175DLH. *The HF GAIN switches are slightly different on the left and right. There is rust and dirt on the exterior. Serial 501170/ unknown (Tamura Eiji)
Maintenance Information: 2024.8.30 Maintained (attenuator SW contact cleaning. *Please note that the HF gain switches are different on the left and right. Crossover check OK. (Hollow resistor exchange)
Accessories: No accessories
Key Specifications: Crossover 1.2kHz 16Ω W159 × H153 × D127 mm 2.2 kg
With a crossover of 7000 Hz, this network is ideal for tweeters such as 075 and 077! Please enjoy using it in a way that suits your needs, such as 2 way or 3 way. The exterior has dullness and small scratches due to aging. Serial 28958/29071 (Tomonori Asaine)
Maintenance information: 2011.9.19 Maintained (network circuit capacitor replacement (using JENZEN CROSS-CAP film capacitors), attenuator contact cleaning, characteristic check, ATT new replacement)
Accessories: none
Key Specifications: Variable Level Control Crossover Frequency 7kHz 8Ω Weight 900g
*Currently sold. The company's X-3 network. The crossover is 650 Hz, 9 kHz. The adhesion on the ATT plate has peeled off (Oikawa Tetsuji)
Maintenance information: 2025.8.10 continuity confirmed
Accessories: none
Key Specifications: Crossover 650 Hz, 9 kHz
The disposal price has been reduced! (Member prices are not applicable) 2024/10/3 sales price 50,000 yen ※1 bottle only. Maintained! This is a rare blue frame (above) model LX5. The impedance is 8 ohms, and the cross is 500 Hz, so be sure to use a 175 or 375 driver that uses 8 ohms! There are spots, rust spots, and small scratches. (Honda Maki)
Maintenance information: 2019.4.4 Maintained (re-fix the internal coil with silicone agent. Remove rust from terminals and mounting screws, clean, and tighten. ATT (SW type) contact cleaning. 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: No accessories
Key Specifications: Crossover Frequency: 500 Hz Level Control: 3 Position Switch Input Impedance: 16 ohms 159 x 153 x 120 mm 2.3 kg
Maintained! Crossover 500 Hz network used for A5. The sound loss is very good, probably because of the large capacitors. It has an overhang and is perfect for cutting! The sound is very attractive not only for Altec users but also for 500Hz networks. The exterior is scratched, dull, rusted, etc., and there is a feeling of use over time (Asaine Tomoho)
Maintenance information: 2025.7.11 Maintained (defective capacitor replaced)
Accessories: none
Main specifications: crossover 500 Hz HF gain 4 stage switching (short plate) W203 x H270 x D115 mm 7.2 kg (actual measurement)
Maintained! ALTEC's crossover variable frequency network. The graininess and sound cuts are attractive. Screwdrivers can also be easily replaced. There is corrosion and dullness (Daiki Goto)
Maintenance information: 2025.4.17 maintained (attenuator VR disassembly and overhaul, speaker terminal exchange, crossover check OK)
Accessories: none
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
Maintained. This is a 2-way network. The bass is also extruded well, and the high frequency adjustment range can be taken widely with 2 types of HF/MF attenuators, so it is a model that is easy to match the desired sound quality (Asaine Tomoho)
Maintenance information: 2024.10.4 maintained (attenuator VR disassembly contact cleaning crossover check)
Accessories: none
Main specifications: W114 × H190 × D228 mm 1.8 kg, crossover frequency 1.2 kHz, impedance 8 Ω, level control is continuously variable in the middle range up to -8 dB at 2 kHz and the high range is continuously variable up to -6 dB at 10 kHz
The price has been drastically reduced! 2024/8/26 sales price 30,000 yen ※1 bottle only. Currently sold. 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 scratches on the exterior due to aging. Serial 313877 (Yonejima Satoshi)
Maintenance information: 2024.8.26 operation confirmed
Accessories: No accessories
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
Maintained. 500Hz 2-way network compatible with double woofers! The strong sound that comes out with the addition of a thick mid-range that feels like an old JBL is attractive. This is a must-have item for those who like the JBL sound that comes out loud with a double woofer (Sasaki Shota)
Maintenance information: 2025.5.10 Maintained (operation check OK. Replace the cover mounting screws with stainless steel ones. (When attaching cover screws, temporarily fasten them once and then re-tighten)
Accessories: original box
Main specifications: 2-way network crossover frequency 500Hz impedance: LOW4Ω/HIGH16Ω level control (high range) 0 to -8 dB (2 dB steps) W159 x D160 x H208 mm 5.5 kg
Comes with original box This high pass filter is recommended for the Super Tweeter PT-R100. The frequency to be cut can be selected with the 12/16/20 kHz terminal to be connected. There is paint peeling on some corners (Oikawa Tetsuji)
Maintenance information: 2025.4.28 continuity confirmed
Accessories: original box
Main specifications: crossover frequency: 12k/16k/20kHz (-12dB/oct) switching impedance 8Ω maximum input 100W W150 x H105 x D85 mm 1.0 kg
Maintained! JBL's 2-way network. An essential item when adding a tweeter driver to a full range unit such as the D130. The exterior has paint peeling and dullness. Serial 39585 38470 (Tomonori Asaine)
Maintenance Information: 2024.5.16 Maintained (12 Terminal Mounting Screws, 24 Insulating Bushings, Terminal Cleaning, Attenuator, VR Replacement, Crossover Check)
Accessories: none
Main specifications: 2-way network 8 ohm crossover 2,500 Hz W121 × H153 × D93 mm 0.7 kg
Self-made 2-way network. The cross will be 1.6 kHz. There is also a quantity, so it's worth trying out. There are stains and scratches on the exterior (Tamura Eiji)
Maintenance information: 2025.4.18 Operation confirmed
Accessories: No accessories
Main specifications: 2-way network crossover frequency 1.6kHz12dB/OCT impedance 8Ω W127 ✕ H160 ✕ D327mm weight 6.1 kg
The disposal price has been reduced! (Member prices are not applicable) 2025/4/14 sales price 198,000 yen genuine Rin Japan product. A Japan-limited edition model of AKURATE DS. Power supply to the DAC and processor sections has been improved by equipping a digital output terminal (~192 kHz) not found in previous models, and improving power supply to the DAC and processor sections by examining the circuit layout, and it is a degree of perfection that is close to the height of the KLIMAX DS. Small scratches and dullness can be seen. Serial 1288636 (Fujisawa Yukishi)
Maintenance information: 2025.4.14 operation confirmed
Accessories: power cord
Main specifications: support files FLAC, WAV, AIFF, AAC, MP3, WMA W381 x D360 x H80 mm 4.0 kg
Maintained! Maintained. With a crossover of 7000 Hz, this network is ideal for tweeters such as 075 and 077! Please enjoy using it in a way that suits your needs, such as 2 way or 3 way. You can see the exterior, dullness, and feeling of use (Tomoho Asaine)
Maintenance information: 2025.4.18 Maintained (attenuator VR replacement
Insulating bushing, deteriorated replacement terminal mounting screws, replacement due to rust, internal coil adhesion repair, crossover check OK)
Accessories: none
Key Specifications: Variable Level Control Crossover Frequency 7kHz 8Ω Weight 900g
Maintained! A network with a crossover frequency of 7000 Hz. Ideal for MID/HIGH use in 3-way systems using the JBL 2420/2440. There are small scratches and dullness appropriate to the model year (Oikawa Tetsuji)
Maintenance information: 2025.4.1 maintained (terminal mounting screw rust and insulation bushing deterioration replacement, terminal ultrasonic cleaning, attenuator VR replacement)
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. 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. Dullness over time and small scars (Oikawa Tetsuji)
Maintenance Information: 2024.9.10 Maintained
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