The disposal price has been reduced! (Member prices are not applicable) 2024/4/23 sales price 99,800 yen, genuine Rin Japan product. A network audio player. It has a simple and modern European design, so you can enjoy a bright sound without getting tired of listening. Not only is it compatible with the LINN system, but it is also equipped with digital output and variable line level output functions not found in the KLIMAX DS and AKURATE DS. There is a thin scratch on the top plate. ※The display is slightly dark, but this is the current situation. Serial 1255165 (Fujisawa Yukishi)
Maintenance information: 2024.4.23 Operation confirmed (Ver. 4.104.518)
Accessories: remote control, power cord
Main specifications: Compatible sampling frequencies 44.1K, 48K, 88.2K, 96K, 176.4K, 192K compatible bits 16-24 bits, output terminals RCA phono (fixed/variable line level output), RCA phono coaxial (digital output) W381 x D360 x H80 mm 4 kg
The price has been reduced! 2024/6/2 sales price 49,800 yen ※Since it is a commercial amplifier, it will be handed over as is. Genuine Hibino The sound is bright and powerful, and it seems to go well with jazz as well as rock music. The fan's driving sound is quite loud. The exterior has a feeling of use such as dullness. Serial A286233 (Jun Tamai)
Maintenance information: 2024.6.2 sound output confirmed
Accessories: none
Main specifications: 230W x 230W (8Ω) 335W x 335W (4Ω) W480 x D415 x H90 mm
NEW GENERATION LUXMAN A CLASS POWER AMPLIFIER! In addition to the warm sound quality unique to Class A, the range is wide and driving power is sufficient. It has resolution and instantaneous power compatible with the latest speakers, and can easily drive even large speakers. It goes well with recent European speakers. The exterior has line scratches on the upper center of the front and top plate, and several scratches on the upper front corner and upper back corner (Kanai Hidetsugu)
Maintenance information: 2024.6.3 sound output confirmed
Accessories: instruction manual, power cord
Main specifications: 60W+60W (8Ω) BLT240W (8Ω) W440 × H230 × D480 mm weight 47.0 kg
Maintained! A power amplifier using the AB/LR independent power supply system, which is a further development of the A class B class 2 independent power supply system. Contrary to its solid appearance, it has a beautiful sound with a sense of transparency. The sound quality is moderately tight and firm, and it naturally handles crisp and energetic intonation expressions. The exterior has small scratches and dullness appropriate for the model year (Oikawa Tetsuji)
Maintenance information: 2024.5.12 Maintained (replacement of defective output relay contacts. (Replace deteriorated capacitors in power supply circuits and other circuits)
Accessories: none
Main specifications: 100W+100W (8Ω) compatible speakers 4Ω to 16Ω SNR 110dB W420 x H166.5 x D300 mm 19.2 kg
Maintained by the manufacturer! This mono power amplifier was developed as the first full-scale high-output power amplifier for consumer use. The sound quality is unique to Accuphase, which has high power and is full of subtlety. Equipped with a digital meter that instantaneously calculates real power. By switching between modes, it is easy to drive even ultra-low impedance speakers. There is a feeling of wear on the exterior such as scratches. E1X029 E1X030 (Jun Tamai)
Maintenance information: 2024.6.6 Accuphase maintained (relay contacts replaced due to deterioration, all switches, volume, reworked due to contact cleaning, parts replaced due to stress deterioration, safety confirmation, pressure resistance test, operation characteristics check, each readjusted cleaning pair, similar treatment for matching characteristics)
Accessories: original box
Main specifications: 800W+800W (8Ω) W481 x H239 x D489 mm 47.2 kg
※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: 2021.12.21 Conductivity confirmed 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
Good condition with original box! OTG cable compatible with portable devices equipped with Lightning terminals. Can be used with products equipped with USB Type-C. By using a mesh sheath that is resistant to compression and twisting, and aluminum alloy is used for the plug, faster and more stable transmission is achieved. (FUJISAWA KOSHI)
Maintenance information: 2024.2.6 continuity confirmed
Accessories: original box
Main specifications: Lightning-USB TypeC total length 138mm cable length 80mm (excluding plug)
Currently sold. An affordable theater speaker with a round finish. A tall boy with 4 ways that are more luxurious than the price. It is a cost-effective speaker that can be easily used for TVs and subs. In addition to the exterior and damage to the dowels on the saran net, you can see a feeling of use such as dullness, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2024.6.3 operation confirmed
Accessories: saran net, instruction manual
Main specifications: 3-way 4-speaker bass reflex type maximum input 120W rated input 60W playback frequency band 36Hz to 25kHz 8Ω output sound pressure level 85dB W225 x H900 x D313 mm 15.6 kg
※Since it is cheap, it will be handed over as is. Marantz 10cm full range speaker. There is no habit, and it makes a well-balanced sound from high to low frequencies. It doesn't take up much space, so you can set it up anywhere. The exterior has scratches, dirt, scratches, etc. Also, there is color peeling and partial deformation on saran. Serial MZ01748010115 (Fujisawa Yukishi)
Maintenance information: 2024.2.25 Operation confirmed
Accessories: saran net
Main specifications: 1 way, 1 speaker, bass reflex system, setting free type, rated input 35W, impedance 6Ω, playback frequency 50 Hz to 20 kHz, W230 x H150 x D150 mm
The price has been reduced. 2024/5/29 sales price 108,000 yen This is an MC-only phono equalizer that was sold to commemorate the 25th anniversary of the birth of the LP12. It is designed so that the sound of the LP12 can be enjoyed at its best by simplifying the signal path and installing a low noise power supply. The center of gravity is low and the sound quality is high in texture, but surprisingly, it is compatible with the SPU and can be used for a wide range of purposes. There is an appearance, dullness, threads, and a feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.5.29 Operation confirmed
Accessories: power cable
Main specifications: Phono equalizer for MC cartridges, input level 150 μ/480 μV, input cae impedance 1500/4.7 nF, W320 x H80 x D326 mm, 1.5 kg
The price has been reduced! 2024/4/13 sales price 5,000 yen LINN remote control. Details are unknown, but it is similar to EXOTIK and UNIDISK 1.1 remote controls. The exterior is dull and has a feeling of use (Hiroki Aso)
Maintenance information: 2024.4.13 operation confirmed (infrared checked)
Accessories: none
The price has been drastically reduced. 2024/3/6 sales price 8,000 yen. This is an accuphase unbalanced (RCA terminal) line input board. There is dullness (Takasaki Atsushi)
Maintenance information: 2024.3.6 operation confirmed
Accessories: none
Main specifications: Compatible models/C-2000, C-245, C-265, CX-260, E-307, E-308, E-407, E-408, E-530, E-550, etc.
The disposal price has been reduced! (Member prices are not applicable) 2024/5/9 sales price 15,000 yen balance cable 3.0 m pair oxygen-free copper OFC Ritz wire type 2 core shield structure. It is a quiet and beautiful sound without falsehood that excludes camouflage. The exterior has a feeling of use such as dullness and scratches on the plug (Tomoho Asaine)
Maintenance information: 2024.5.9 continuity confirmed
Accessories: none
※1 XLR cable, 5.0 m, male to female terminals, is a cable made by NEUTRIK, has a straightforward sound, and a sturdy structure that is easy to handle. There is an appearance and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2023.9.18 Conductivity confirmed
Accessories: none
Main specifications: Electromagnetic shielded microphone cable, 4 cores, outer diameter: 6.0 mm
Jack (male) to XLR (male) cable 2.0m pair plugs are both ends made by Neutrick and are originally microphone cables, so sound loss is good. There is an appearance, threads, and a feeling of use (Kobayashi Hitoshi)
Maintenance Information: 2023.9.18 Conductivity Confirmed
Accessories: none
Main specifications: Electromagnetic shielded microphone cable, 4 cores, outer diameter: 6.0 mm
The price has been drastically reduced. 2023/4/28 sales price 1,000 yen. ※1 bottle only. Jack Jack Cable 2.0m Studio and Stage Professional Cable There is no habit, and the tone is straightforward (Takasaki Atsushi)
Maintenance information: 2023.4.28 Conductivity confirmed
Accessories: none
Jack (female) to RCA cable 2.0m pair plug are both ends made by Neutrick and are originally microphone cables, so sound loss is good. There is an appearance, threads, and a feeling of use (Kobayashi Hitoshi)
Maintenance Information: 2023.9.16 Conductivity Confirmed
Accessories: none
Main specifications: Electromagnetic shielded microphone cable, 4 cores, outer diameter: 6.0 mm
※1 XLR cable 1.5m male phone jack plug is made by Neutrick and is originally a microphone cable, so sound removal is good. There is an appearance, threads, and a feeling of use (Kobayashi Hitoshi)
Maintenance information: 2023.9.18 Conductivity confirmed
Accessories: none
Main specifications: Electromagnetic shielded microphone cable, 4 cores, outer diameter: 6.0 mm
※It is inexpensive because it is in poor condition, such as rust. Maintained! A vintage Lux Premain model. The 75W yet firm, extruded bass and thick, mild mid-high sound are lackstones themselves. Enjoy playing records with a tasteful sound. The exterior is serial 2503734 (Yonejima Satoshi)
Maintenance information: 2024.5.25 Maintained (main amplifier circuit board solder correction. Switch and volume contacts corrected. Panel lamp replacement Output relay replacement. (I/O pin jack polish)
Accessories: No accessories
Main specifications: 75W+75W phono 1 system (MM/MC switching) line 2 tape systems, 2 tape systems, pre/power separable, W453 x H135 x D425 mm 13 kg
The disposal price has been reduced. Member discounts are not applicable. 2024/5/25 sales price 248,000 yen It now uses Alnico, which can be called premium, and the tuning that emphasizes musicality that is comfortable to listen to throughout the entire area makes a good impression. The visuals are also compact and elegant, and have a sense of luxury. The appearance is fine, with no noticeable scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2024.5.25 Operation confirmed
Accessories: saran net, jumper cable
Main specifications: 2WAY sealed 35mm pure silk ring diaphragm tweeter 170mm Kurt Mueller cone woofer rated input 50W maximum input 150W output sound pressure level 87dB impedance 6Ω crossover 3,500 Hz playback band 40 to 50,000 Hz W224 x H380 x D319 mm 10.8 kg
Comes with AKTIV CROSSOVER! (4 separate stereo power amplifiers are required) Multi-purpose dedicated system speakers. As an isobaric low frequency system, the same unit as the woofer visible on the front is stored inside the enclosure. Using multiple amplifiers, AKTIV CROSSOVER allows optimal music signals to be played for each unit, creating high quality sound typical of LINN in all bands. The exterior is dull and has a feeling of use, and the saran net is loose. Serial 000295 000296 (Hiroki Aso)
Maintenance information: 2024.6.3 sound output confirmed, AKTIV CROSSOVER maintained (power supply unit replacement, main board, electrolytic capacitor replacement, output, audio check, check frequency characteristics, etc.)
Accessories: AKTIV CROSSOVER
Main specifications: 3 way, 4 speakers, isobaric system, crossover frequency 90 Hz, 3 kHz, external dimensions W350 x H1050 x D410 mm, weight 55 kg (actual measurement)
※Operation has been confirmed, but since it is cheap, it will be handed over as is. This is a KENWOOD KA series amplifier. It has a compact and clean design, and can be placed horizontally or vertically. The sound quality is as clean as it looks, and it is recommended for those who want to enjoy music in a small space. Serial 61100061 (Sato Wataru)
Maintenance information: 2024.3.26 Operation confirmed
Accessories: No accessories
Main specifications: 3 input lines 12W+12W (8Ω) dimensions W171 x H67 x D207 mm weight 2 kg
The price has been drastically reduced! 2024/5/25 sales price 148,000 yen This speaker has acquired wideband playback and high dynamic range. Equipped with a special tweeter Emit-B that fits in the high range, it achieves high frequency reproduction over 45 kHz and a clean, tight low frequency response. The exterior is dull and has small scratches, broken dowels on the saran net, and some repair marks remain on the woofer center cap. Serial 03144 03972 (Tomonori Asae)
Maintenance information: 2024.5.25 sound output confirmed
Accessories: Saran net jumper cable (general purpose product) spike
Main specifications: frequency characteristics 30 Hz to 45 kHz ± 2 dB crossover frequency 250 Hz, 800 Hz, 3.5 kHz sensitivity 89dB/2.8V/1m input impedance 4Ω recommended amplifier output 50W to 400W external dimensions W430xH1,480xD430 mm weight 59 kg
A slow starter that slowly starts the connected device and protects it from inrush current when the power is turned on. PSE standard product The front panel indicator gradually brightens in sync with the gentle power start, and you can visually confirm the soft start. Serial 0919HA7026120709 (Fujisawa Yukishi)
Maintenance information: 2024.6.3 continuity confirmed
Accessories: No accessories
Main specifications: Output/input capacity 1500 VA, output frequency 50/60 Hz, standby power 0.01W or less, W130 x H94 x D267 mm (without protrusions) 1.8 kg
JVC AV selector. Devices such as 4 systems of players can be connected. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.5.23 Continuity confirmed
Accessories: none
Main specifications: 4 systems (input 1 to 4 video/audio L/R) output terminal 1 system (video/audio L/R) video frequency band 10 MHz W170 x H40 x D78 mm approx. 187 g
Victor's AV selector 4 inputs 1 output The exterior has a feeling of use such as dirt, scratches, and smudges (Kanai Hidetsugu)
Maintenance information: 2024.5.23 continuity confirmed
Accessories: none
Main specifications: W169 x H40 x D78 mm 200 g (actual measurement)
An affordable Lax interconnect cable with attention to detail, such as each core structure that makes the hot and cold of the 1.0 m RCA cable transmission line the same, and a core wire wrapped in Japanese paper. It is characterized by its moderate thickness and good S/N. (YONEJIMA Satoshi)
Maintenance information: 2024.4.7 continuity confirmed
Accessories: No accessories
Trio 2-way speakers. A sectional horn is used for the high range, and a free edge is used for the low range woofer. It's an inexpensive yet tasteful sound. The particle board of the hakama deteriorates and falls apart in tatters (Murakoshi Yoichi)
Maintenance information: 2024.6.2 sound output confirmed
Accessories: saran net
Main specifications: 2 way 93dB W392 x H753 x D395 mm 20kg
The price has been reduced! 2024/3/22 sales price 200 yen ※PSE standard product! This is a standard type of wall outlet. The exterior has a feeling of use such as dullness (Tomoho Asaine)
Maintenance information: 2024.3.22 continuity confirmed
Accessories: none
Disposal prices have been reduced. Member discounts will not be applied. 2023/1/23 sales price 500 yen. Sale as is. 1 YAMAHA full range unit. There is a dent in the center cap, and there is a feeling of use (Kobayashi Hitoshi)
Maintenance information: 2023.1.23 Operation confirmed
Accessories: none
Main specifications: Outer diameter approx. 205 mm, screw pitch approx. 105 mm, weight 1.5 kg
HDMI cable 1.0 m transmission speed 10.2 Gbps to 21 Gbps (varies depending on cable length) The shorter the cable, the faster the transmission speed. (FUJISAWA KOSHI)
Maintenance information: 2024.5.23 continuity confirmed
Accessories: No accessories
HDMI cable 2.0m HDMI → HDMI High Speed with Ethernet (HDMI Ver 1.4) 3D/HD4K compatible entry class yet has excellent speed performance. The appearance is good with little feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.5.10 sound output confirmed
Accessories: original box
The price has been reduced. 2023/6/27 sales price 15,000 yen Qables Potaan is 192 kHz compatible. It supports up to 192 kHz/24 bit via the SPDIF digital input terminal and 48 kHz/16 bit via USB. For those looking for high quality sound anywhere easily (Oikawa Tetsuji)
Maintenance Information: 2023.6.27 Operation confirmed
Accessories: connection cord, case
Main specifications: W70 x H23 x D126 mm 200 g
Maintained! A high-performance preamp developed by Onkyo in the early 1980s. It is equipped with 3 types of cartridge selectors for 2 Phono inputs, making it a great specification for analog users. The way the dry mids sound is reminiscent of the sounds of the 60s and 70s. There are conspicuous line marks on the top plate and dents on the corners (Daiki Goto)
Maintenance information: 2024.5.9 maintained (maintenance contents/indicator lamp replacement, mode, recoup, input selector, cartridge selector, subsonic switch disassembly, polishing grease application, operational amplifier replacement, solder repair, each volume, switch cleaning, internal inspection and cleaning, operation confirmation.)
Accessories: copy of instruction manual
Main specifications: input LINE3 system PHONO2 (MM/MC) system power consumption 26W dimensions W450 x H990 x D403 mm weight 9.5 kg
A set of 2 seems to be a choke transformer, but the details are unknown. Measured DC resistance value 380/373Ω W31H95 x 44mm 0.31 kg/piece (actual measurement, not including protrusions), only conduction and resistance values have been confirmed by a tester (Kojima Yosuke)
Accessories: none
The disposal price has been reduced. Member prices are not applicable. 2024/5/9 sales price 128,000 yen One side tweeter has been replaced! The successor model to the super popular “IKON Series.” It is equipped with a unit that uses wood fiber cone paper. The mid and low frequencies are rich, and the high frequencies sound smooth. You can feel the depth of the sound clearly (Daiki Goto)
Maintenance information: 2024.5.9 operation confirmed
Accessories: original box, jumper plate
Main specifications: 3 way 4 speakers, frequency characteristics, 39 Hz to 30 kHz, crossover 700 Hz, 2.6 kHz, 14 kHz, efficiency 89 dB impedance 6 ohms size W188 x D352 x H1028 mm weight 17.8 kg
LGC conductors are used for only 1 3.0 m RCA cable. I want a little more loss of the high frequencies, but the sound is so intense that it comes forward (Mizusaki Ryo)
Maintenance information: 2023.11.24 Continuity confirmed
Accessories: none
*Currently sold. Details of only one Sony 15 cm full range unit are unknown, but there is an I-502-437-11 description on the back. I was able to sweep and make a sound. The exterior has dullness, stains, etc. (Tomoho Asaine)
Maintenance information: 2024.5.14 sound output confirmed
Accessories: none
*Currently sold. Details of Sony's 15 cm full range unit pair are unknown, but there is a description of i-502-437-11 on the back. I was able to sweep and make a sound. The exterior has dullness, stains, etc. (Tomoho Asaine)
Maintenance information: 2024.5.14 sound output confirmed
Accessories: none
TOPPING USB isolator This is a high speed audio isolator compatible with USB 2.0. Compatible with PCM32bit 768kHz DSD512 natively It removes ground loop noise. The appearance is good with little feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.5.6 operation confirmed
Accessories: instruction manual, original box
Hyphonic rare shell Made of hard aluminum alloy+gold plated brass, it has a luxurious appearance. The overhang can be adjusted using the slide method. The exterior is dull (Tomonori Asaine)
Maintenance information: 2024.6.1 continuity confirmed
Accessories: No accessories
Main specifications: Weight 13g (including lead wire)
A compact, high CP, and easy headphone amplifier. The sound is bright and has good visibility. A well-balanced model that works well with everything from pop to rock. Serial 32741 (Fujisawa Yukishi)
Maintenance information: 2024.5.18 Operation confirmed
Accessories: instruction manual, AC adapter
Main specifications: output 330 mw/30 ohm, 60 mw/300 ohm headphone amplifier connection, 30 ohm gain, 11 dB S/N ratio, 87 dB frequency characteristics, 30 to 20 kHz, input/output RCA, 1 system each, W103 x D127 x H38 mm, 1.40 kg
The HDMI cable is a 3.0 m high-grade connector, and a nylon mesh cable is used for the outer shell. It is possible to faithfully transmit high quality video and sound (Tamura Eiji)
Maintenance information: 2024.5.24 Operation confirmed
Accessories: none
The price has been reduced. 2024/4/15 sales price 35,000 yen It is a high-end masterpiece that has been loved by Sennheiser for a long time. As a studio monitor, it demonstrates its power without regret. It expresses delicate sound and clear space, and provides both vocals and performances with high resolution. There is a slight feeling of use on the earpads (Kanai Hidetsugu)
Maintenance information: 2024.4.15 sound output confirmed
Accessories: original box, instruction manual, cable
Main specifications: dynamic open air, 300 ohms, 103 dB, playback frequency band 10 to 39,500 Hz, cable length: 3.0 m, mass: approx. 260 g
The disposal price has been reduced! Member prices are not applicable. 2024/5/17 sales price 99,800 yen ※The HDD has been changed to an SSD (2TB). This is a black model that has upgraded the DELA N1A/N1Z, which was announced and sold as the industry's first “audio NAS,” and improved commerciality. Equipped with a dedicated USB-DAC connection terminal, the rear design has been renewed. In addition to being equipped with a 60W high-capacity power supply unit, a newly developed high-capacity capacitor bank is mounted on the rear stage of the power supply unit. A newly selected 3.5-inch quiet drive is mounted on a floating silicon bush to improve sound quality. There are scuff marks and dirt marks on the exterior. Serial 40300161000139 (Fujisawa Yukishi)
Maintenance information: 2024.5.17 Operation confirmed
Accessories: power cord
Main specifications: storage capacity 2TB (2TB SSD x 1) input/output terminal USB 3.0 x 3 (import/capacity expansion/backup) USB 2.0 x 1 (for USB-DAC connection) RJ45 x 2 (router connection/network player) compatible file format WAV · AIFF · FLAC · ALAC · DSF · DFF sample frequency 44.1/88.2/176.4/352.8/48/96/192/384 kHz (PCM) 2.8 /5.6/11.3 MHz (DSD) compatible bits 16 to 32 bits (PCM) W436 x H70 x D352 mm weight 7 kg
The price has been reduced. 2024/5/25 sales price 39,800 yen This is an S-shaped tonearm. You can use static balance cartridges with a dead weight of 15 to 22 g. You can see a feeling of use such as appearance, dullness, small scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2024.5.22 continuity confirmed
Accessories: instruction manual, connection cord
Main specifications: static balance one-point cross suspension type, effective length 229 mm, applicable cartridge weight 4 to 12 mm
※There is no problem with operation, but since it is cheap, it will be handed over as is. A unique digital amplifier technology “VL Digital” has been introduced to reproduce high-resolution sound more vividly in a PC environment, making it easy to enjoy as a desktop speaker. The color on the top plate has faded and there are dents (Oikawa Tetsuji)
Maintenance information: 2024.5.29 Operation confirmed
Accessories: none
Main specifications: 40W+40W (4Ω) playback frequency range 50Hz to 100kHz digital IN sampling frequency 32, 44.1, 48, 96, 192 kHz/24 bit size Rch: W169 × H263 × D240 mm Lch: W169 × H263 × D215 mm Weight Rch: 6.4 kg Lch: 4.3 kg
The price has been reduced. 2024/3/6 sales price 15,000 yen*Currently sold because it is cheap. Small mixer with built-in processor. It can also be used as a PA processor by installing it between the mixer and power amplifier (Oikawa Tetsuji)
Maintenance information: 2024.3.6 operation confirmed
Accessories: power adapter
Main specifications: W155 x H40 x D102 mm (excluding protrusions) 540 g
The disposal price has been reduced. Member prices are not applicable. 2023/9/13 sales price 2,980,000 yen Maintained with attention to details such as drivers and wiring! The Georgian 4 is attractive for its elaborate horn configuration and beautiful furniture-like design. It is a model with a built-in crispy horn, a structure that creates a unique sound with a rich sense of scale, and the loud sound is truly an American masterpiece, but you can also feel a somewhat English-like sex appeal. *The attenuator has been maintained, but slight chipping occurs when turning due to deterioration of the original winding resistance (Oikawa Tetsuji)
Maintenance information: 2023.9.13 Maintained (828HF disassembly and maintenance: separation from magnetic circuit and diaphragm, magnetic circuit diaphragm maintenance: cleaning of the magnetic circuit, rustproof vibration system, round out, stop noise, T350 disassembly and maintenance: separation from the magnetic circuit and diaphragm, sound pressure difference adjustment: stop noise due to resonance sound generation, elimination of sound pressure drop due to rear sound leakage. Confirm that there are no modifications inside the housing. Remove rust from screws on screw-type terminals, pickle, and polish and clean the receiving side. ATT (x4) 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: none
Main specifications: 4-way 15WK, 828HF, T350, X336 (300/3500) approx. W860 x D660 x H1,350 mm approx. 90 kg
It is a USB-connected bus-powered D/D converter that uses the C-Media “CM6642” as the digital audio control IC and is compatible with high-resolution sound sources (maximum 24 bit/192 kHz) (Tamura Eiji)
Maintenance information: 2024.4.13 operation confirmed
Accessories: instruction manual, original box
Main specifications: digital input: USB TypeB terminal USB 1.1/2.0 compatible, USBAudioClass 1.0/2.0 compatible digital output: coaxial digital audio output (COAXIAL) optical digital audio input (square) compatible format: PCM maximum 24 bit 192 kHz W40 x H25 x 81 mm 90 g