Line selector and attenuator with no amplification function. Models using carbon solid resistors. You can enjoy a rich, chiseled sound filled with energy throughout the entire area. The exterior has dullness and small scratches. Serial 0149 (Yonejima Satoshi)
Maintenance information: 2026.3.1 operation confirmed
Accessories: No accessories
Main specifications: input RCA3 system output RCA1 system W300 x H100 x D260 mm approx. 3.5 kg
Main volume, CD volume, etc. have been disassembled, polished, and maintained! Accuphase line specific preamp. Since it also has a total of 8 input systems, it is convenient for using multiple devices such as CD players. Also, the CD input has a dedicated buffer amplifier and volume, so you can feel the attention to detail in this model. The exterior has line damage and some lettering is missing. Serial L8X241 (Tamura Eiji)
Maintenance information: 2026.2.27 Maintained (balance volume replacement. Electrolytic capacitor replacement near the heat source. Main volume, CD volume, CD input, SW compensator, SW, disassemble, polish, clean, and apply protective agent. Magnetic catch misalignment correction, solder correction, knob idle rotation correction, I checked the sound of each input/output. (*The CD input is balanced and unbalanced, but please do not connect both at the same time.)
Accessories: none
Main specifications: line preamplifier, CD dedicated buffer amplifier, CD dedicated input balanced/unbalanced 1 system each, line input 5 systems, 1 output balance system, 2 unbalanced systems, W475 x H135 x D373 mm, 11 kg
Comes with original box! Hyundai Onkyo's masterpiece preamp equipped with a discrete phono equalizer in addition to a 192 kHz/32 bit compatible USB-DAC. The tone is clear and sharp. It has a smooth, firm core and strength. You can see the exterior, dullness, etc. and feeling of use (Matsumoto Tsuyoshi)
Maintenance information: 2026.2.23 Operation confirmed
Accessories: Power cord, general-purpose product, remote control, original box
Main Specifications: Analog Input: RCA x 4 Phono (MM) x 1 Digital Input: Optical x 2 Coaxial x 2 AES/EBU x 1 USB (TypeB) x 1 Digital Output: Light x 1 PreOut x 2 Frequency Characteristics 5Hz-100kHz (LINE) Overall Distortion Ratio 0.005% (at rated output) S/N ratio 110dB W435 x H99 x D333 mm 11kg
Maintenance was completed in 2025/3 until 32 electrolytic capacitors were replaced and the disassembly contacts for each volume switch were cleaned! This is a Yamaha preamp that is still highly popular. If you have excellent phonos and basic records, please give it a try. With a natural and highly transparent Yamaha sound, you can fully enjoy the appeal of acoustic instruments, such as the touch and feel of a piano, and the sharpness of guitar strings. The exterior has a feeling of use such as dullness, small scratches, and stains on the top plate. Serial 11087 (Yamato Yuki)
Maintenance information: 2025.3.29 Maintained (switch, volume disassembly contact cleaning. Apply grease to all rotary switch disassembly contacts to clean contacts. Lever switch disassembly, contact cleaning, contact grease application. Replace 32 electrolytic capacitor meters. Internal and external dirt cleaning, terminal cleaning. Check the operation of each input/output)
Accessories: copy of instruction manual
Main specifications: PHONO x 3 system (MM/ MC) MC head amplifier built-in W435 x H72 x D320 mm 7.9 kg
The disposal price has been reduced. Member discounts are not applicable. 2025/9/30 sales price 118,000 yen 24 transistors and 9 capacitors replaced. Furthermore, all switches and volumes have been disassembled and polished, and maintenance has been carried out on Yamaha's famous C-2! It has a particularly good reputation for phono, and it is still a popular model among analog users. With a natural and highly transparent Yamaha sound, you can fully enjoy the appeal of acoustic instruments, such as the touch and feel of a piano, and the sharpness of guitar strings. The exterior has dullness and scratches. Serial 04437 (Murakoshi Yoichi)
Maintenance information: 2025.9.29 maintained (all corrected with output pin jack soldering) 2025.5.3 maintained (all volumes and switch disassembly contacts polished. Replace 24 deteriorated transistors and 9 capacitors in the tone control circuit power supply circuit. (I/O pin jack polish)
Accessories: No accessories
Main specifications: PHONO x 3 system (MM/ MC) MC head amplifier built-in W435 x H72 x D320 mm 7.9 kg
The disposal price has been reduced. Member discounts are not applicable. 2026/1/10 sales price 118,000 yen All switches have been partially cleaned and maintained, such as replacing 30 electrolytic capacitors! Yamaha's masterpiece preamp. It has a particularly good reputation for phono, and it is still a popular model among analog users. With a natural and highly transparent Yamaha sound, you can fully enjoy the appeal of acoustic instruments, such as the touch and feel of a piano, and the sharpness of guitar strings. There are dullness and small scratches on the exterior. Serial 10159 (Tamura Eiji)
Maintenance information: 2026.1.10 Maintained (All switch disassembly contacts have been cleaned due to poor contact with many switches. The volume disassembly contacts have been cleaned. The muting relay was replaced due to poor contact. A jumper wire was connected due to poor contact with the input/output terminal board connector. The electrolytic capacitor has been replaced. The exterior and interior have been cleaned. Each input/output operation was checked.)
Accessories: none
Main specifications: PHONO x 3 system (MM/ MC) MC head amplifier built-in W435 x H72 x D320 mm 7.9 kg
It is a control amplifier incorporating an advanced AAVA volume system. The good sense of signal during actual use is outstanding, and the breadth and depth of the sound field is far from within this price range. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2026.2.18 Operation confirmed
Accessories: remote control, instruction manual, power cable
Main specifications: 6 input RCA6 systems (2 of which can be used with OP boards attached), XLR2 system output XLR1 system, RCA2 system W465 x H150 x D405 mm 16.0 kg
Maintained! Audiocraft rare amplifiers are now in stock. I like the clear, well-balanced sound quality with few distractions. You can see a feeling of use on the exterior, dullness, threads, stains, etc. *When TAPE is 2 → 11 → 2, each produces a MON2 MON1 sound. When listening to phono and AUX, set TAPE SW to SOUCE. (KOBAYASHI Hitoshi)
Maintenance information: 2026.2.21 maintained (main volume replacement, balance volume exchange, phono circuit dual transistor replacement, power supply capacitor replacement, switch cleaning, interior and exterior inspection cleaning, pin jack polishing, reckout wiring correction, operation confirmation)
Accessories: none
Main specifications: PHONO input 2 systems (mm) W400 x H85 x D270 mm 4.36 kg (actual measurement)
The disposal price has been reduced! Member prices are not applicable. 2026/1/30 sales price 118,000 yen Switch maintenance including disassembly, cleaning, and replacement of 39 deteriorated capacitors! Yamaha's masterpiece preamp. It has a particularly good reputation for phono, and it is still a popular model among analog users. With a natural and highly transparent Yamaha sound, you can fully enjoy the appeal of acoustic instruments, such as the touch and feel of a piano, and the sharpness of guitar strings. Serial 12488 (Fujisawa Yukishi)
Maintenance information: 2026.1.30 Maintained (audio output circuit soldering correction. Disassemble and clean each switch and main balance volume.
(Replace 39 electrolytic capacitors and tantalum capacitor meters, correct each part, install screws)
Accessories: No accessories
Main specifications: PHONO x 3 system (MM/ MC) MC head amplifier built-in W435 x H72 x D320 mm 7.9 kg
Maintained! Late QUAD44 with CD input terminal. All inputs and outputs are equipped with RCA terminals. An elegant and lustrous tone. It has the natural texture of the acoustic sauce and the smooth tone that feels good against the skin. The output sensitivity can be selected from 3 levels. As for the exterior, there are scratches and dullness over time, and there is noticeable paint peeling on the right side. Serial Q036565 (Yamato Yuki)
Maintenance information: 2025.9.2 maintained (balance VOL cleaning, other SW and VOL checks, C etc. in each internal board replaced ~ operation check.) 2023.11.17 Maintained (filter VOL, SW lever installation failure, reprocessing, etc., internal bypass C, coupling C, etc. have been replaced, operation check OK)
Accessories: instruction manual copy power cable
Main specifications: LINE input 1 system PHONO input 1 system Phono sensitivity 1m/3m/10mV switching W321 × H103 × D203 mm 4.0 kg
The price has been drastically reduced. 2026/2/16 sales price 448,000 yen Top model in the No. 380 series. Genuine Harman This is the pinnacle of the 380 series, where sound quality has been improved by introducing high-quality parts. The high mid to high range with lots of information is attractive, clear, and smooth. You can also enjoy classical string music and vocal music with intonation quality. You can see a feeling of use, such as appearance, dullness, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2026.2.15 Operation confirmed
Accessories: remote control, instruction manual, power cord
Main specifications: full balance circuit, 4 line inputs, 2 balanced inputs, 2 analog outputs, W400 x H98 x D364 mm, 10 kg
Maintained! Tubular control amplifier manufactured by Copeland. The glossy, thick mid-range and smooth, natural tone are attractive. The expressive power of vocals and strings is excellent, and depicts a high-quality space. It also has a phono input, making it ideal for analog playback. This one is recommended for those who want to enjoy the music in a moist way. As for the exterior, there is a feeling of use such as stains, dullness, and scratches on extreme surfaces on the top plate. Serial 15311-25-18 (Tomonori Asaine)
Maintenance Information: 2026.2.15 Maintained (Electrolytic Capacitor Replacement Power Supply Unit Transistor Coupling Capacitor Replacement Main Volume and Balance Volume Replacement Board Cleaning Each I/O Voice Check Mute Time Approx. 30 seconds)
Accessories: power cord
Main Specifications: Vacuum Tube Equalizer E83cc Line: E82ccx2 Power Consumption 32W (Electrical Appliances Control Law)
External dimensions: 430 W x 125 H x 375 D
Weight 8kg
An extremely single-function preamp with a simple 1 input 1 output. There is no deterioration in sound quality due to extra switches or turns. An extremely clear sound image appears in front of you. A variable GAIN system is used for volume control. You can see a feeling of use, such as appearance, dullness, small scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2026.2.14 Operation confirmed
Accessories: power cable
Main specifications: input impedance 10KΩ W482 × H66 × D200 mm 2.9 kg
*Currently sold. Special preamplifier for vacuum tube lines with VU meter. It is a 110V specification, but other details are unknown. Please note that the grill pin is broken in one place, making it easier to come off (Oikawa Tetsuji)
Maintenance information: 2026.2.15 Operation confirmed
Accessories: power cable
Main specifications: Vacuum tubes used CV181-SE x 4 (PSVAN), 5AR4 x 1 (PSVAN) W430 x H205 x D320 mm
12.4 kg (actual measurement)
A preamplifier with an all-stage cascode A class push-pull configuration with balance terminals for input and output. The phono equalizer is compatible with MM only. The separation of mid and low frequencies is good, and bass and drums are reproduced with high resolution. There is a scratch on the right side (Daiki Goto)
Maintenance information: 2026.2.15 Operation confirmed
Accessories: manual, original box
Main specifications: input terminal PHONO (MM) x 1 RCA x 6 XLR (CD BAL) x 1 TAPE x 2 output terminal RCA x 2 XLR x 1 W470 x H145 x D373 mm 15.6 kg
The disposal price has been reduced. Member prices are not applicable. 2025/11/29 sales price 118,000 yen 43 electrolytic capacitors have been replaced and maintenance has been completed, even cleaning the disassembly contacts for each volume switch, etc. Yamaha's masterpiece preamp. It has a particularly good reputation for phonos, and it is still a popular model among analog users. With a natural and highly transparent Yamaha sound, you can fully enjoy the appeal of acoustic instruments, such as the touch and feel of a piano, and the sharpness of guitar strings. The exterior has small scratches and dullness over time. Serial 02927 (Tomonori Asaine)
Maintenance information: 2025.11.29 Maintained (power switch, electrolytic capacitor replacement. Disassemble and clean the volume, selector, and switches. (Panel, back terminals, and housing must be cleaned)
Accessories: copy of instruction manual
Main specifications: PHONO x 3 system (MM/ MC) MC head amplifier built-in W435 x H72 x D320 mm 7.9 kg
The price has been reduced. 2026/1/30 sales price 378,000 yen Maintained! The company's first model equipped with a digital panel. The sense of S/N has increased, and the sound is deep enough to be compatible with modern speakers. The high range has also been widened, and while every band remains clear, it makes you feel the thickness typical of McKinn. Detailed settings are also possible with the 8-band equalizer. Serial JRP2681 (Hiura Katsuji)
Maintenance information: 2026.1.28 maintained (panel dismantling, blue film adhesive removal, panel cleaning, lamp replacement, regulator part C replacement, equalizer VOL cleaning, RCA pin jack cleaning, partial pattern re-soldering, operation check)
Accessories: remote control, instruction manual, power cord
Main specifications: digital volume type 8-band equalizer line input 9 systems (RCA x 8/XLR x 1) phono (MM) input 1 system line output 3 systems (XLR/RCA) W445 x H150 x D470 mm 11.5 kg
The price has been drastically reduced. 2026/1/31 sales price 158,000 yen This time it's a full maintenance with 85 deteriorated capacitors replaced, main volume replaced, and other switch knobs dismantled and polished! SONY's name control amplifier. The sound field that spreads without stuttering is unique to the 70s SONY brand. The sense of extrusion in the middle range and the sense of dynamism that radiates throughout the entire area are exquisite (Sasaki Shota)
Maintenance Information: 2026.1.31 Maintained (Electrolytic Capacitors, Tantalum Capacitors, Semi-fixed Resistors replaced. Since noise occurs during rotation even after disassembling and cleaning the main volume, the main volume (to Alps RK27 type) was replaced. (We will disassemble and clean balance VR and selector switches, and clean panels and terminals)
Accessories: none
Main specifications: PHONO2 system MM/MC (3/40 ohm) DC configuration amplifier W480 × H80 × D370 mm 9.4 kg
The price has been reduced. 2026/2/9 sales price 298,000 yen This is a special version with the new material changed to a cyanide ester printed circuit board and the main internal parts have been renewed. The deep sound, which has both transparency and suppleness while having a sense of sharpness and speed, makes the music fully enjoyable is attractive. The range and sound field are wide, and you can enjoy classical music with sufficient quality. Exterior, part of the front panel logo has disappeared, and a feeling of use can be seen such as sticking marks, dullness, stains, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2026.2.9 maintenance completed (replacement of deteriorated parts, setting initialization volume is slightly noisy, but this is not abnormal)
Accessories: remote control, instruction manual, power cable
Main specifications: input imbalance (RCA) 4 system balance (XLR) 2 system output balance (XLR) 1 system unbalance (RCA) 1 system dimensions W400 x H98 x D364 mm weight 16 kg
The price has been reduced! 2026/1/31 sales price 99,800 yen Maintained! This is a compact, space-saving quad preamp 34. It has a supple and delicate expressive power that is not inferior to the 44, which is a higher-level model. The supple, uncharacteristic character goes well with vacuum tube power amplifiers. As for the exterior, there are rust spots and line scratches on the top plate. Serial Q030141 (Tamura Eiji)
Maintenance information: 2026.1.31 Maintained (internal check, coupling C, bypass C, etc. replaced. Through-hole pattern check. Operation check)
Accessories: power cable
Main specifications: PHONO (MM compatible) module switchable type W321 x H64 x D207 mm 3.2 kg
There is a noticeable scratch on the front. Genuine RF Popular CELLO high precision attenuator unit. Adjustable in 1 dB steps. It has a reputation for being as fresh as an encore preamp. The sound quality as a passive attenuator is top ranked (Sasaki Shota)
Maintenance information: 2026.2.7 operation confirmed
Accessories: none
Main specifications: 58 contact switching passive attenuator selector 4 inputs/1 output input impedance 10 kΩ output impedance 0 to 10 kΩ dimensions W 240 x H100 x D 250 mm weight 1.6 kg
In addition to cleaning each SW, pin jack, VOL, display panel, etc., maintenance such as replacing deteriorated parts has been completed. The crisp bass range, which makes you feel the soul of a Macintosh, makes me like the fact that the deep bass sound doesn't expand. It makes me feel that the mid to high range is good and the minute resolution is high. The 8-band tone control is also easy to use, so you can enjoy your favorite sound. You can see a feeling of use, such as appearance, dullness, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2026.1.24 maintenance completed (each SW cleaning, pin jack cleaning, push button contact failure (STANBY/ON) tact SW replacement, display cleaning, regulator capacitor replacement, main VOL cannot be cleaned because it is a digital VOL, tone VOL cleaning, operation check)
Accessories: remote control, instruction manual, power cable
Main specifications: 8-band equalizer amplifier, high sound quality, control center with headphone output terminal, balance output impedance 480 ohm, unbalanced output impedance 240 Ω, input RCA8 system/XLR1 system, pre-out RCA3 system/XLR3 system, power consumption 50W, W445 x H152 x D467 mm, 11.8 kg
The price has been drastically reduced. 2026/2/3 sales price 598,000 yen This item is in good condition, full of accessories including the original box! The delicate and subtle sound, full of dynamism, is attractive. The volume knob is equipped with an AAVA volume control that uses a high rigidity/high accuracy volume sensor cut from an aluminum block. You can feel the fine particle feeling that comes from the height of SN. Serial A3Y155 (Murakoshi Yoichi)
Maintenance information: 2026.2.3 sound output confirmed
Accessories: remote control, instruction manual, RCA cable, power cord, original box
Main specifications: Total harmonic distortion ratio 0.005% SN ratio at rated output balance/unbalance, both 109 dB input terminal balance (XLR) systems, 5 unbalanced (RCA) systems, 2 output terminal balance (XLR) systems, 2 unbalanced (RCA) systems, 2 unbalanced (RCA) systems W465 x H150 x D409 mm 19.2 kg
Maintained! Model equipped with a balance input board. It is a famous historical machine that is both thick and sharp with little coloring. This is a best-selling model that is thicker than the later 38L, and enables 4 levels of gain control with internal switches. It is cool and heavy yet has a sense of delicate control, and its depth of pocket is attractive. There are scratches and scratches on the exterior. (TAMURA Eiji)
Maintenance information: 2026.1.30 Maintained (Balance switch 1.2 dismantled and cleaned. Each part inspection/operation check) 2025.7.14 Maintained (2 fuses were replaced due to disconnection and deterioration. Since deterioration of 33 capacitors and 14 semi-fixed resistors was seen, they were replaced. Since some solder has deteriorated, solder correction has been carried out. (Inspection and adjustment of each part and operation check OK)
Accessories: connection cable, power cable, LEMO x 4
Main specifications: dual mono configuration stereo preamplifier unbalance 6dB/12dB/18dB balance12dB/18dB/24dB main body W444 x H74 x W333 mm 4.5 kg power supply unit W194 x 74 x 333 mm 3.6 kg
The disposal price has been reduced. Member discounts are not applicable. 2026/1/18 sales price 1,280,000 yen current! Beautiful goods! Comes with original box! Luxman's flagship model control amplifier. Equipped with a new amplified feedback engine, LIFES, and the latest evolved version LECUA-EX, a unique electronically controlled attenuator, it realizes realistic sound that combines static and motion. Made with carefully selected high quality parts, Lux fans are worth listening to. The appearance is good with little feeling of use (Kobayashi Hitoshi)
Maintenance information: 2026.1.18 Operation confirmed
Accessories: remote control, instruction manual, power cable, original box
Main specifications: input sensitivity/input impedance unbalance 180 mV/45 kΩ balance 180 mV/90 kΩ frequency special 20 Hz to 20 kHz 5 Hz to 110 kHz S/N ratio unbalance 129 dB balance 132 dB power supply voltage AC 100V (50/60 Hz) W440 x H130 x D434 19.8 kg
Every detail has been maintained, including the replacement of 12 electrolytic capacitors in March 2022! This is a control amplifier from Sony's high-end brand, the Esprit series. Straight sound with a sense of speed similar to the TA-E900. The outline is clear and the sound image is drawn clearly. Even now, it is a powerful machine that is attractive enough. The exterior has small scratches, bumps, etc. Serial 200767 (Yonejima Satoshi)
Maintenance information: 2026.1.12 Operation confirmed. 2022.3.8 Maintained (flat amplifier module defective → 2 modules created and replaced, offset adjusted. Changed 12 negative feedback electrolytic capacitors for the tone circuit. The pilot lamp was converted to an LED and a resistor associated with it was added. Op amp replacement for DC servos. Solenoid switch disassembly cleaning for MC head amplifiers and mute. Sound output check carried out.)
Accessories: No accessories
Main specifications: 5 line inputs, 2 pre-out systems, W480 x H105 x D465 mm, 12.5 kg
The price has been drastically reduced. 2026/1/22 sales price 198,000 yen Maintenance has been completed, such as lamp replacement, volume disassembly, contact cleaning, etc. A preamplifier using a TFET-value module that thoroughly eliminates distortion generated by the amplifier amplification stage. It is a specification with high gain. The thick sound and dry, tense sound are truly American sounds! * Since there is no power switch and no muting mechanism according to the original specifications, noise containing DC components is emitted in the pre-output when connected to an outlet. The interior operates at a high voltage, and it takes some time to stabilize, including the equalizer and amplifier. After turning on the power of this unit, wait about 5 minutes before turning on the power amplifier. The back of the top plate is slightly raised (Oikawa Tetsuji)
Maintenance information: 2026.1.22 Maintained (dismantled, glued, fixed contacts cleaned due to poor BASS volume shaft stopper. The main volume disassembly contacts have been cleaned. Other checks, the pilot lamp was dark, so I replaced the neon lamp.
**Please do not turn on the power amplifier until the output stabilizes when the power is turned on. (4 to 5 minutes) There is no muting circuit, so it may make a loud noise.)
Accessories: none
Main specifications: 2 phono systems (MM), 5 input systems, 2 output systems, dimensions W480 x H90 x D360 mm, weight 7.4 kg
※Inexpensive because the remote control is out of stock. Hyundai Onkyo's masterpiece preamp equipped with a discrete phono equalizer in addition to a 192 kHz/32 bit compatible USB-DAC. The tone is clear and sharp. It has a smooth, firm core and strength. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2026.1.18 Operation confirmed
Accessories: copy of instruction manual, power cable
Main Specifications: Analog Input: RCA x 4 Phono (MM) x 1 Digital Input: Optical x 2 Coaxial x 2 AES/EBU x 1 USB (TypeB) x 1 Digital Output: Light x 1 PreOut x 2 Frequency Characteristics 5Hz-100kHz (LINE) Overall Distortion Ratio 0.005% (at rated output) S/N ratio 110dB W435 x H99 x D333 mm 11kg
The price has been drastically reduced. 2025/9/24 sales price 138,000 yen Replace 29 deteriorated capacitors, disassemble all volumes and switches, and clean thoroughly! Yamaha's famous C-2a. The transparency and three-dimensional effect of the sound have been revived brilliantly. The mid-high range, which has good texture, is recommended for those who like clear sound. It has a reputation for the sound quality of phono equalizers, and is a popular amplifier for analog fans. There are line scratches and noticeable stains (Takasaki Atsushi)
Maintenance information: 2025.8.28 Maintained (MUTE switch disassembly terminal cleaning. TREBLE volume decomposition correction and cleaning. Disassemble and clean the main volume and other switches and selectors. Electrolytic capacitor replacement. (Panel, terminal, and housing cleaning)
Accessories: copy of the manual
Main specifications: PHONO input 2 systems (MM/MC) DC amplifier configuration W435 x H72 x D320 mm 7.9 kg
The price has been drastically reduced! 2026/1/19 sales price 128,000 yen Maintained! PRIMARE Class A operation preamplifier with a fully balanced design. There is also a function that allows you to individually adjust the sensitivity of each input channel, and this model is fully functional. Even the delicate nuances of the music are vividly reproduced, and the sound is well-organized and clear. Serial 885-094 (Tomonori Asaine)
Maintenance information: 2026.1.17 Maintained (rotary concorder replacement for volume adjustment, operation test)
Accessories: remote control connection cable
Main specifications: analog input/XLR x 2 systems, RCA x 5 systems, analog output/XLR x 1 system, RCA x 2 systems, W430 x H100 x D410 mm, 9.5 kg