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
Maintained! With a 7000 Hz crossover, 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. Serial 35512 35917 (Sasaki Shota)
Maintenance information: 2024.5.4 maintained (12 terminal terminal mounting screws replaced, 24 insulating bushings replaced, terminal part cleaned, 2 parts replaced for attenuator VR, crossover 7,000 Hz check OK)
Accessories: none
Key Specifications: Variable Level Control Crossover Frequency 7kHz 8Ω Weight 900g
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
Maintained! A 1500 Hz crossover network perfect for combining the LE14A with the 175DLH and LE175. The exterior is dull and has small scratches (Oikawa Tetsuji)
Maintenance information: 2024.4.17 Maintained (2 VR attenuators, 12 screws, 24 insulating washers replaced)
Accessories: none
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. The exterior has been painted on the front due to scratches and signs of use. Serial 38620 39011 (Tomonori Asaine)
Maintenance Information: 2024.4.16 Maintained (8ohm Attenuator VR Screw Insulated Washer Parts Replacement)
Accessories: none
Key Specifications: Variable Level Control Crossover Frequency 7kHz 8Ω Weight 900g
Maintained! This network is used for A5, A7, etc. Unlike channel dividers, it is easy to handle, and the sound is familiar to the ear. The exterior is dull over time and has small scratches (Sasaki Shota)
Maintenance Information: 2024.4.13 Maintained (frequency characteristic check, ATT cleaning, terminal cleaning)
Accessories: none
Main specifications: crossover 500 Hz 8 ohms W123 x H140 x D132 mm 1.6 kg
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
The price has been reduced! 2024/3/15 sales price 7,000 yen This is a rare 2/3 way network developed for 8 ohms. Crossover 500/4000 Hz (when 3 way), you can see a feeling of use such as dullness and small scratches on the exterior (Asaine Tomoho)
Maintenance information: 2023.3.11 Operation confirmed
Accessories: none
Main specifications: 2 way crossover 4000 Hz, 3 way crossover 500/4000 Hz constant resistance parallel network attenuation 12 dB 8 Ω W120 × H130 × D40 mm 550 g
Maintained! A rare 800 Hz/8 ohm network that doesn't arrive easily. The low frequencies are smoothly pushed out, and the clarity of the mid and high frequencies is enhanced. This network is recommended for those considering using a 2-way driver configuration. For LE175 and LE85 users You can enjoy a horn sound that is a bit different from 500Hz. Overall, there is a feeling of use over time. (TERAMOTO Hidehiko)
Maintenance information: 2023/12/21 maintained (terminal rust removal (pickling) treatment, insulation bushings & mounting screws replaced. ATT (SW type) contact cleaning. Reinforced so that the coil fixation inside the housing does not come off. 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: impedance 8 ohms, crossover, 800 Hz, 120 W, 3-stage gain control, approx. 1.9 kg
Maintained! A popular 500Hz network installed in Paragon and Olympus. It uses excellent parts such as high voltage resistant non-polar capacitors and coils that use low loss Orient cores, and the cross is easy to use at 500 Hz, and it is a very easy to use network for those assembled with drivers such as 175 and 375. Overall, there is rust and dullness due to aging. (TERAMOTO Hidehiko)
Maintenance information: 2023.12.20 Maintained (terminal rust removal (pickling) treatment, insulation bushings & mounting screws replaced. ATT (SW type) contact cleaning. Frequency characteristics measurement checks (~ approx. 42 kHz) were performed, and the original capacitors were continued to be used for good results. Check the input/output waveform and balance, and check the sound output.
Main Specifications: Crossover Frequency/500Hz Level Control/3 Position Switch 8Ω W159×H153×D120mm 2.3 kg
Maintained! A popular 2-way 500Hz network. It's an essential network for 2" drivers. In addition to a 3-position attenuator, it is equipped with a high frequency boost switch. It is very effective when constructing a 2-way system with a JBL 2441 driver, etc. The sound has also become fresh due to terminal rust removal (acid washing) treatment and insulation bushings and mounting screw replacement. There is a feeling of wear and small scratches over time (Teramoto Hidehiko)
Maintenance information: 2023/12/17 maintained (terminal rust removal (pickling) treatment, insulation bushing & mounting screw replacement. ATT (SW type) contact cleaning. Reinforced so that the coil fixing inside the housing does not come off. Frequency characteristics measurement checks (~ approx. 42 kHz) were performed, and the original capacitors were continued to be used for good results. (Check input/output waveforms and balance, check sound output)
Accessories: none
Main specifications: crossover 500Hz low range 8Ω high range 16Ω high frequency level control 6/8/10dB 1.9 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 exterior has dullness and oxidation. Serial 512013/512014 (Tamura Eiji)
Maintenance information: 2023.12.9 operation confirmed
Accessories: instruction manual
Main specifications: cross 500/7,000 Hz -5 to -15 dB W120 x H153 x D175 mm weight 2.2 kg/unit
Scarce! An interface network for bi-amp driving the company's woofer TL-1601A and driver TD-4001. In addition to the increased size of the input terminals dedicated to LF and HF, the design has been applied with a low loss and low leakage concept common to the TN series. What about those thinking about a large bi-amp system? (Sasaki Shota)
Maintenance information: 2023.11.27 Operation confirmed
Accessories: none
Main specifications: Recommended speaker unit TL-1601a TH-4001+TD-4001 Recommended crossover frequency 600 Hz to 800 Hz W250 x H300 x D108 mm 2.3 kg
Scarce! An interface network for bi-amp driving the company's woofer TL-1601A and driver TD-4001. In addition to the increased size of the input terminals dedicated to LF and HF, the design has been applied with a low loss and low leakage concept common to the TN series. What about those thinking about a large bi-amp system? (Sasaki Shota)
Maintenance information: 2023.11.26 operation confirmed
Accessories: none
Main specifications: Recommended speaker unit TL-1601a TH-4001+TD-4001 Recommended crossover frequency 600 Hz to 800 Hz W250 x H300 x D108 mm 2.3 kg
A crossover 500 Hz network designed for halls and theaters. The professional-like crossover correction circuit realizes accurate operation, making it a durable network. There is a feeling of use appropriate to the model year (Oikawa Tetsuji)
Maintenance information: 2023.11.20 operation confirmed
Accessories: none
Main specifications: impedance low range 12 to 16 ohm/treble range 12 to 16 Ω treble range attenuation 0, 2, 4, 8 dB W190 x H160 x D210 mm 5.5 kg/book
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
Maintained in 2016. A network with a crossover frequency of 7 kHz. Ideal for MID/HIGH on 3-way systems using 2440. There are dullness and small wounds appropriate to the model year (Oikawa Tetsuji)
Maintenance information: 2023.10.16 Operation confirmed
2016.10.31 Maintained (terminal polishing, cleaning, insulation bushing & mounting screw replacement. ATT exchange. Input/output waveform and balance check, sound output check. Frequency characteristic measurement check (~ approx. 42 kHz). (*The capacitor remains original)
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! Popular 500 Hz networks mounted on Paragon and Olympus. It uses excellent parts such as a high voltage resistant non-polar capacitor and a coil with a low loss Orient core, and the cross is easy to use at 500 Hz, making it a very easy to use network for those assembled with drivers such as 175 and 375 (Murakoshi Yoichi)
Maintenance information: 2023.9.18 Maintenance (frequency characteristics and sound output check, ATT cleaning, terminal contact cleaning, urethane treatment due to internal elements rattling.)
Accessories: none
Main Specifications: Crossover Frequency/500Hz Level Control/3 Position Switch 8Ω W159 x H153 x D120mm 2.3 kg
rare! Altec's 2-way division network can be switched between 500 Hz and 800 Hz. A product that can be used not only with the A7 but also with other systems. The impression is glossy, while keeping the sense of openness typical of Altec intact. There is an appearance, dullness, and small wounds (Kobayashi Hitoshi)
Maintenance information: 2023.9.17 Maintenance completed (frequency characteristics check, ATT cleaning)
Accessories: none
Main specifications: 8Ω W191 x H114 x D225 mm with 500 Hz/800 Hz switchover 1.25 kg
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
Technics's 2-way network and cross are 5,000 Hz. ※There are solder marks left on the terminal. There are small scratches on the exterior. (YONEJIMA Satoshi)
Maintenance information: 2023.9.3 operation confirmed
Accessories: original box
Main specifications: 2way network 8Ω crossover 5kHz attenuation 12dB/oct
※There is no problem with operation, but since it is cheap, it is currently sold. This is a rare PIONEER network DN-6 developed for 8 ohms. It comes with a 2-way/3-way changeover switch with input and application capabilities. There are small wounds and dullness (Oikawa Tetsuji)
Maintenance information: 2023.9.2 Operation confirmed
Accessories: none
Main specifications: 2 way crossover 4 kHz, 3 way crossover 500 Hz/4 kHz constant resistance parallel network attenuation 12 dB 8 Ω W120 x H130 x D40 mm 550 g
Maintained! It is a large input 2-way network used in ALTEC A5, etc. The high frequency attenuation attenuator can narrow down the driver to -16 dB with 10-stage switching in -2 dB steps. There is a feeling of use such as appearance, abrasion, dullness, etc. (Kobayashi Hitoshi)
Maintenance information: 2023.8.15 maintenance (characteristics/sound output check, ATT cleaning, terminal contact cleaning)
Accessories: none
Main specifications: 2-way network, 2 dB step/10 stage attenuator, allowable input, 250 W, crossover, 500 Hz, impedance 16 ohms, actual size W283 x H305 x D138 mm, approx. 8 kg
Western Labo 2-way crossover network 597A dedicated network. If you use 597A, please give it a try. The exterior is dull over time and has small scratches (Satoshi Yonejima)
Maintenance information: 2023.7.28 Sound output operation confirmed
Accessories: There are no accessories
Main specifications: crossover 3khz W150 x H150 x D208 mm weight 3.7 kg
Maintained! A crossover 500 Hz network used for the A5. The sound loss is very good, probably because of the large condenser. It has an overhang and is perfect for cutting! It's a very attractive sound not only for Altec users but also for 500Hz networks. The exterior has aging scratches, dullness, etc. (Kobayashi Hitoshi)
Maintenance information: 2023.5.10 Maintained (coil capacitor re-fixed, reinforced. Rust removal treatment for screws such as screw-type ATT. Panel crack bonding treatment. 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: 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! A network with a crossover frequency of 7 kHz. Ideal for MID/HIGH 3-WAY systems using the 2440. There is a feeling of use such as dullness. Serial 25875 26103 (Takasaki Atsushi)
Maintenance information: 2023.3.31 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: none
Main specifications: crossover frequency 7 kHz allowable input (continuous program) 50W 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. Ideal for MID/HIGH 3-WAY systems using the 2440. Baldness and yellowness of paint are conspicuous (Daiki Goto)
Maintenance information: 2023.3.20 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: 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
This is a rare PIONEER network DN-6 developed for 8ohms. Comes with a 2WAY/3WAY changeover switch with entry capability. You can see the exterior and feeling of use (Hitoshi Kobayashi)
Maintenance information:2023.3.11 operation confirmed
Accessories: none
Main specifications: 2 way crossover 4 kHz, 3 way crossover 500 Hz/4 kHz constant resistance parallel network attenuation 12 dB 8 ohm W120 x H130 x D40 mm 550 g
Maintained! A network with a crossover frequency of 7 kHz. Ideal for MID/HIGH 3-WAY systems using the 2440. The exterior is dull and paint has deteriorated (Sasaki Shota)
Maintenance information: 2023.3.7 Maintained (damaged terminals replaced from stock genuine parts. 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: 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
Sold as is without guarantee because it is cheap. Crossover 700Hz, 5,600Hz 3-way network pair. There is a feeling of use (Sasaki Shota)
Maintenance information: 2023.2.24 operation confirmed
Accessories: original box
Main specifications: crossover 700Hz/5,600Hz W290 × H50 × D110 mm
2018.9.4 Maintained. Crossover 7000 Hz high range network. Perfect for tweeters such as 075 and 077. Replace attenuators, capacitors, insulating bushings, etc. with new ones. The terminal is carefully polished at the conductive area to reduce the resistance value as much as possible. The exterior has paint peeling and dullness. Serial 39025/39041 (Kimiya Miura)
Maintenance information: 2018.9.4 Maintained (terminal cleaning, screw washer replacement. ATT exchange. Input/output waveform and balance check, sound output check. A frequency characteristic measurement check (up to approx. 42 kHz) was performed and the original capacitor was used for good results)
Accessories: no accessories
Main specifications: variable level control crossover frequency 7kHz impedance 8ohm weight 900g
2015.5.21 Maintained. JBL's 2WAY network. An essential item when adding a tweeter driver to a full range unit such as the D130. The exterior has paint peeling and is dull. Serial 3956/4022 (Miura Kimiya)
Maintenance information: 2015.5.21 Maintained (terminal polishing, cleaning, insulation bush replacement. ATT exchange. Input/output waveform and balance check, sound output check. (Frequency characteristic measurement check)
Accessories: no accessories
Main Specifications: 2 Way Network 8 Ohm Crossover 2,500 Hz W121 × H153 × D93 mm 0.7 kg
A self-made network using 2 giant air core coils, 2 TKS oil conditioners, and 2 oil cons from unknown manufacturers. Storefront operation has been confirmed, but details such as frequency are unknown (Fujisawa Koshi)
Maintenance information: 2023.1.6 operation confirmed
Main specifications: W180 x H170 x D467 mm 14.3 kg/unit (actual measurement)
Self-made network using huge air core coils and SHIZUKI capacitors (100 μF, 800 VDC). Storefront operation has been confirmed, but details such as frequency are unknown (Fujisawa Koshi)
Maintenance information: 2023.1.6 operation confirmed
Accessories: none
Main specifications: W198 x H105 x D330 mm 7.8 kg/unit (actual measurement)
A network box dedicated to the company's Horn Super Tweeter T500A MK3. Our original film capacitors (CS series) are used as network elements, and internal wiring, terminals, etc. also use parts that maximize sound quality (Atsushi Takasaki)
Maintenance information: 2023.1.3 sound output confirmed
Accessories: instruction manual
Main specifications: impedance 8 ohms cutoff frequency 120 kHz W100 x H66.2 (including terminal) x D120 mm 440 g
Maintained! A network with a crossover frequency of 7 kHz. Ideal for MID/HIGH 3-WAY systems using the 2440. There are scratches and paint peeling on the exterior. Serial 13033/13028 (Kimiya Miura)
Maintenance information: 2022.12.24 Maintained (replace insulating washers and tighten more. ATT contact cleaning. 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) 2015.6.4 Maintained (terminal polishing, cleaning, insulation bushing & mounting screw replacement. ATT exchange. Input/output waveform and balance check, sound output check. (Frequency characteristic measurement 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 7 kHz. Ideal for MID/HIGH 3-WAY systems using the 2440. The exterior has a feeling of use such as dullness and paint deterioration. Serial 12562 13264 (Hiroki Aso)
Maintenance information: 2022.12.23 maintained (stock damaged terminals from genuine parts, remove terminal rust, acid wash, clean insulating bushings & mounting screws, replace ATT brand new products, perform frequency characteristic measurement checks (~ approx. 42 kHz), continue using the original capacitors for good results, input/output waveforms and balance confirmation sound 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. Ideal for MID/HIGH 3-WAY systems using the 2440. The exterior is dull and paint has deteriorated. Serial 26154, 26205 (Murakoshi Yoichi)
Maintenance information: 2022.12.19 maintenance (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: 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
This high-pass filter is recommended for the super tweeter PT-R100. The frequency to be cut can be selected with the 12/16/20kHz terminal to be connected. The exterior has noticeable scratches and scratches. (Tamura Eiji)
Maintenance information: 2022.12.2 operation confirmed
Accessories: There are no accessories
Main specifications: Crossover frequency: 12K/16K/20kHz (-12dB/OCT) switchable impedance 8Ω maximum input 100W W150 x H105 x D85 mm 1.0 kg
Disposal prices have been reduced! (Member discounts do not apply) 2022/11/30 Sales price 20,000 yen A very rare MID network for SONY's high end speaker SS-AR1. It will be a repair part. How about for repairs or as part of research (Tamura Eiji)
Accessories: none
Main specifications: W160 x H40 x D125 mm, own weight 0.8 kg/unit
It is a 2-way crossover network manufactured for PIONEER's low frequency crossover. There are appearance, dullness, and abrasions (Kobayashi Hitoshi)
Maintenance Information: 2022.11.8 Operation confirmed
Accessories: none
Main specifications: impedance 8Ω crossover 500Hz/800Hz maximum input 100W dimensions W260 x H65 x D151 mm weight 1.9 kg
Bellwood's 2-way network crossover is 7 kHz. A FOSTEX attenuator is attached to the high frequency section, so sound pressure can be adjusted. Recommended for those who want to add Twitter to the full range unit. The exterior is clear and there is a feeling of use (Kobayashi Hitoshi)
Maintenance Information: 2022.11.8 Operation confirmed
Accessories: none
Main specifications: Crossover frequency: 7kHz 8Ω attenuation: 12dB/oct W170 × H100 × D140 mm 0.88 kg
Maintained! A network with a crossover frequency of 7 kHz. Ideal for MID/HIGH on 3-way systems using 2440. The exterior has dullness, abrasion, and paint deterioration. Serial 20837/22189 (Eiji Tamura)
Maintenance information: 2022.10.30 Maintained (terminal rust removal pickling, cleaning, insulation bushing & mounting screw replacement. ATT is replaced with a brand new one. The frequency characteristics were measured and checked (~ approx. 42 kHz), and since the results were good, the original capacitors were continued to be used. Input/output waveform and balance check, sound output check.)
Accessories: none
Main Specifications: Crossover Frequency 7 kHz Allowable Input (Continuous Program) 50W Impedance Bass Range: 12 to 16 Ω Treble Range: 12 to 16 Ω Treble Attenuation/Variable Volume Mounting Hole W140 x 108 mm 0.7 kg
Maintained! A network with a crossover frequency of 7 kHz. Perfect for MID/HIGH on 3-way systems using 2440. The exterior has dullness and paint deterioration. Serial 1260/16994 (Miura Kimiya)
Maintenance Information: 2022.10.9 Maintained (Terminal Rust Removal, Pickling, Cleaning, Insulating Bushing & Mounting Screw Replacement. ATT brand new replacement. A frequency characteristic measurement check (~ 42 kHz) was performed, and the original capacitor was continuously used for good results. (Check input/output waveform and balance, check sound output)
Accessories: There are no accessories
Main specifications: crossover frequency 7 kHz allowable input (continuous program) 50W impedance bass range: 12 to 16 ohms treble range: 12 to 16 ohms treble attenuation/variable volume installation Hole W140 x 108 mm 0.7 kg
Maintained! A network with a crossover frequency of 7 kHz. Perfect for MID/HIGH on 3-way systems using 2440. The exterior has dullness and paint deterioration. Serial 10523, 10528 (Murakoshi Yoichi)
Maintenance Information: 2022.10.4 Maintenance (Terminal Rust Removal, Pickling, Cleaning, Insulating Bushing & Mounting Screw Replacement. ATT brand new replacement. A frequency characteristic measurement check (~ 42 kHz) was performed, and the original capacitor was continuously used for good results. Check the input/output waveform and balance, and check the sound output.)
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