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C-2450Japan

Ask 25-48223-24330-00
C-2450
Manufacture:Accuphase
Original price: JPY 750,000
Price: JPY 590,909
Japan 2017 made
Arrival: 2025-12-21 20:13:16
description
Maintained by the manufacturer! Comes with original box Technology cultivated in the higher-level model C-2850 was introduced into pure analog circuit AAVA volume control. Delicate sounds are expressed in a fresh manner, and the sound quality is full of transparency. The overwhelming quality at low volume is practical. The exterior is generally in good condition. Serial G7Y105 (Yamato Yuki) Maintenance information: 2025.12.21 maintained (front panel internal indicator, glass cleaning input/output check OK, safety check/pressure resistance check OK) Accessories: original box, remote control, instruction manual, power cable Main specifications: 7 input systems (RCA x 5, XLR x 2) output 3 systems (RCA x 2, XLR x 2) size W465 x H150 x D409 mm 19 kg

P-4200Japan

Ask 25-48223-24329-00
P-4200
Manufacture:Accuphase
Original price: JPY 490,000
Price: JPY 361,818
Japan 2013 made
Arrival: 2025-12-21 20:13:13
description
Maintained by the manufacturer! Comes with original box This is a full change model that enhances the degree of perfection of all P-4100 circuits. The latest instrumentation amplifier system is used for the overall configuration, and it is equipped with a mode changeover switch that allows easy bi-amp or bridge connections, improving convenience. The sound of the traditional 4000 series, which has a wide range and high transparency, has been refined. It is generally in good condition. Serial P5Y422 (Yamato Yuki) Maintenance information: 2025.12.21 maintained (front panel internal indicator, glass cleaning idling adjustment, input/output check OK, safety check/pressure resistance check OK) Accessories: original box instruction manual power cable Main specifications: rated output 90W+90W (8Ω) 180W+180W (4Ω) load impedance 2 to 16Ω (in stereo) input RCA1 system, XLR1 system speaker output 2 systems W465 x H190 x D427 mm 28.9 kg

DP-3000NEJapan

Ask 25-48388-25642-00
DP-3000NE
Manufacture:DENON
Original price: JPY 350,000
Price: JPY 216,364
Japan 2023 made
Arrival: 2025-12-21 20:12:21
description
A flagship turntable tuned by Denon's sound master! The 2.8-kg heavyweight platter and high-rigidity cabinet suppress resonance and are designed to focus on stability and quietness. I have the impression that it reproduces every inch of the sound source information received by the cartridge. The appearance is good with little feeling of use. Serial DCFN112301620 (Murakoshi Yoichi) Maintenance information: 2025.12.14 sound output confirmed Accessories: instruction manual, power cord, RCA cable Main specifications: DC brushless motor speed 33, 45, 78 tone arm: static balance S-shaped platter: die-cast aluminum+stainless steel plate (mass approx. 2.8 kg) Cabinet: made of high-density MDF, solid structure insulator: built-in spring, individual height adjustable power consumption 4 W or less W500 x H185 x D394 mm 18.5 kg (including dust cover)

MC240U.S.A

Ask 25-47886-21250-00
MC240
Manufacture:McIntosh
Price: JPY 452,727
U.S.A 1960 made
Arrival: 2025-12-21 20:11:47
description
Vacuum tubes, block capacitors, etc. have been refreshed and maintained with attention to detail so that they can be used for a long time! You can enjoy the rich sound with stable operation. The fresh, glossy tone in the mid to high range has a different appeal from the MC275. There is a feeling of use such as small scratches, peeling prints, etc. (Murakoshi Yoichi) Maintenance information: 2025.12.20 maintained (diode failure and 2 replacement, 12AX7 x 1 replacement, shield case missing addition, power transformer rewound repair, 100/30 μF and 2 others replacement and insulation cover addition, 20 μF and 3 other electrolytic capacitors replaced, 0.22 μF oil capacitors replaced and 7 others replaced, 2W and 1W 9 resistors replaced, thermistors added, selenium deterioration countermeasures diodes added, vacuum tubes 6L6GC x 4 replacement, RCA jack and vacuum tube socket caulking repair *Other operation checks have been performed (measured at 32 to 47 W SP: 8 Ω at rated output AC 100 to 117 V) Accessories: none Main specifications: 40W+40W vacuum tube CV1947 (6L6G) x 4, 12AX7 x 3, 12AU7x2, 12BH7 x 2, frequency characteristics 16 to 40,000 Hz dimensions W400 x D265 x H195 mm weight 25 kg

TA-F555ESX2Japan

Ask 25-47848-20944-00
TA-F555ESX2
Manufacture:SONY
Original price: JPY 128,000
Price: JPY 72,545
Japan 1995 made
Arrival: 2025-12-21 20:07:21
description
Maintenance has been completed, from replacing deteriorated parts to disassembling switches, etc., and polishing contacts! Recommended for those who enjoy all genres of music. It seems to be an amplifier manufactured during the heyday of audio, and it supports music with plenty of room in the mid to low range. You can see a feeling of use, such as appearance, dullness, abrasions, etc. (Kobayashi Hitoshi) Maintenance information: 2025.12.17 maintenance completed (A output board resistance 100 Ω x 210 Ω x 2 replacement, speaker protection relay left and right replacement, other ATTENUATOR disassembly, polishing cleaning, speaker switching SW, Cartrich LOAD switching SW, RECOUT selector SW, INPUT tape selector, INPUT selector, (MUTING push SW, source direct push SW, grease application for each decomposition, polishing, cleaning grease, other input/output RCA terminal cleaning, DC bias adjustment, input/output sound confirmation) Accessories: none Main specifications: output 120W+120W MC compatible impedance 4Ω to 16Ω dimensions W470 x H166 x D436 mm weight 26 kg

RCAケーブル/1.5m

Ask 25-48332-25658-00
RCAケーブル/1.5m
Manufacture:自作
Price: JPY 909(pair)
Arrival: 2025-12-21 20:04:08
description
I think the 1.5m pair of RCA cables and TMS plugs are self-made. You can see a feeling of use on the exterior, writing, paint marks, dullness, scratches, etc. (Kobayashi Hitoshi) Maintenance information: 2025.12.21 continuity confirmed Accessories: none

12AU7A

Ask 25-48407-25951-00
12AU7A
Manufacture:RCA
Price: JPY 5,909
Shop: Osu shop
Arrival: 2025-12-21 20:01:04
description
Sold 1 bottle ECC82 compatible ball long plate, made in America, measured value 102 (rejected value 56) with white box, logo printing has disappeared ※The measured values indicate GM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: white box

Mimesis 27MESwitzerland

Ask 25-48191-24102-00
Mimesis 27ME
Manufacture:GOLDMUND
Original price: JPY 1,430,000
Price: JPY 602,727
Switzerland 2002 made
Shop: Osu shop
Arrival: 2025-12-10 20:12:38
description
The price has been reduced. 2025/12/10 sales price 698,000 yen Maintained! Genuine Stellar GOLDMUND Millennium Evolution preamp. It is a luscious, elegant amplifier with a sexy tone unique to Goldmund. A carbon top has been adopted to improve the signal-to-noise ratio, and the use of an A20 module eliminates minute vibrations and fluctuations on the circuit. There is slight rust on the front plate. Serial 40308038 (Daiki Goto) Maintenance information: 2025.12.10 Maintained (the noisy Rch A20 amplifier module was replaced and the remote control battery was replaced. After the repair, operation, various characteristics were confirmed, running tests, and interior and exterior cleaning were carried out.) Accessories: remote control, copy of manual, power cable Main Specifications: Analog Input: Single Ended (RCA) x 7 Analog Output: Single Ended (RCA) x 2 Analog Tape Out Single End (RCA) x 2 Input Sensitivity/Impedance: 100mV/50kΩ Output Level/Impedance: 1.55Vrms/10Ω Frequency Characteristics: 0 to 150 kHz ± 0.1 dB 0 to 500 kHz ± 1 dB 0 to 0.85 MHz ± 3 dB Total Harmonic Distortion Ratio: 0.01% Below channel separation: 90 dB or more Maximum power consumption: 70 W W440 x D400 x H105 mm 10 kg

TAD-D600Japan

Ask 25-48446-26127-00
TAD-D600
Manufacture:TAD
Original price: JPY 3,500,000
Price: JPY 1,436,364
Japan 2011 made
Arrival: 2025-12-20 19:46:16
description
Comes with original box and is a beautiful item! Premium TAD SACD players are in stock. Made in 2016 A popular luxury machine for its uniqueness that is not similar to any other brand. Both the CD and SACD have high resolution yet are thick, and have three-dimensional sound quality full of energy. The overwhelming amount of information unique to high-end, which realistically reproduces even the fading afterglow of the sound, is attractive. The exterior is a beautiful item with no conspicuous scratches. Serial PK000164JP (Yonejima Satoshi) Maintenance information: 2025.12.20 Operation confirmed Accessories: remote control, instruction manual, power cable, original box Main specifications: balanced input terminal/XLR1 system coaxial input terminal/RCA1 system DAC input sampling frequency/32 kHz to 192 kHz main unit W450 x H185 x D440 mm 26.5 kg power supply unit W220 x H185 x D430 mm 13 kg

NAC62+NAP140UK

Ask 25-89025-24749-00
NAC62+NAP140
Manufacture:Naim Audio
Original price: JPY 360,000
Price: JPY 116,364
UK 1990 made
Shop: Osu shop
Arrival: 2025-12-03 20:07:59
description
The disposal price has been reduced. Member prices are not applicable. 2025/12/3 sales price 238,000 yen ※There is PHONO notation, but the BNC input is a line-only type equipped with an NA328/2 module. Maintenance has been completed, including replacing 35 capacitors and creating an input cable! This is a pre-+ power amplifier set. Although it is small, it has high gain, and it lets you hear deep, English-like sounds. With a very sticky middle range and strong driving power, not only small groups but also large groups can make a loud noise. There are dirt and threads on the exterior. *There is some pop noise when the power is turned on and off, or when the preamp is unmuted, but this is a specification. There is overall dullness and small scratches (Mizusaki Ryo) Maintenance information: 2025.11.9 maintained (NAP140 voltage failure → C deterioration in tantalum C short board replacement NAC62 board C capacity failure → replacement each SWVOL galley → cleaning (DIN5P → RCA male 1m cable x 2 created) operation check) Accessories: power cable, connection cable, copy of instruction manual Main specifications: NAC62 · input phono BNC (RCA) x 1 line DIN terminal x 3 systems W250 x H76 x D300 mm weight 2.5 kg NAP 140 · output 45 x 45 W (8 ohms) W205 x H76 x D300 mm weight approx. 5 kg

MA2275U.S.A

Ask 25-48278-24729-00
MA2275
Manufacture:McIntosh
Original price: JPY 900,000
Price: JPY 516,364
U.S.A 2007 made
Arrival: 2025-12-19 20:01:11
description
The price has been reduced! 2025/12/19 sales price 598,000 yen Panel maintenance including fog removal! Modern vacuum tube premain amplifier. Vacuum tubes are used at all stages. The soft, glossy vocals are attractive. While firmly following the thickness and softness of traditional A sound images, it is also well compatible with modern sound sources. The plug ground part of the power cable has been cut off. The exterior is dull. Serial XB1421 (Jun Tamai) Maintenance information: 2025.12.19 maintained (each SW, VOL cleaning (some remains due to scratches on the balanced rough contact plate) panel dismantling cleaning tube defective replacement input selector, push button LED replacement (original not available) pin jack cleaning operation check bonnet screw replacement) Accessories: ※ Remote control is being arranged power cable (the ground part of the plug has been cut off.) Main specifications: 75W+75W (2/4/8Ω) input RCA x 6 systems (internal phono MM/AUX switching x 1 system) XLR x 1 system power input RCA x 1 system W445 x H255 x D475 mm 35.8 kg

CADENZAU.S.A

Ask 25-48369-25433-00
CADENZA
Manufacture:VIOLA
Original price: JPY 2,500,000
Price: JPY 829,091
U.S.A
Arrival: 2025-12-15 20:11:48
description
The disposal price has been reduced! (Member discounts are not applicable) 2025/12/15 sales price 1,200,000 yen Maintained! It's a crossroads preamp that follows the Cello ENCORE 1MΩ flow. The sound is innocent yet supple and nostalgic. It is a valuable car where you can experience the awesomeness of the infinitely neutral and transparent sound that VIOLA promotes without any coloring. There are small scratches, dullness, and a feeling of use. Serial 0087 (Fujisawa Yukishi) Maintenance information: 2025.12.15 Maintained (volume disassembly contact cleaning. The GAIN volume shaft knob is adjusted with clearance between panels. Attach the power connector receiving screw. Check the operation of each input/output) Accessories: connection cord, power cord Main specifications: fixed resistance switching type analog amplifier circuit module equipped with 4 output systems (XLR x 2, Fischer x 1, RCA x 1), 6 input systems (XLR x 1, Fischer x 1, RCA x 4) TAPE OUT (RCA x 1) main body W445 x H110 x D430 mm 9 kg power supply unit W225 x H110 x D400 mm 7.6 kg

PYTHON/1.0mU.S.A

Ask 25-48190-24601-00
PYTHON/1.0m
Manufacture:AudioQuest
Original price: JPY 98,000
Price: JPY 19,818(pair)
U.S.A
Arrival: 2025-12-04 19:46:36
description
The disposal price has been reduced (member prices are not applicable) 2025/12/4 sales price 28,000 yen RCA cable 1.0m, the upper series “Python” of the AudioQuest interconnect cable. In addition to the balanced triple PSC+ conductor, Teflon tube air insulation is used as an insulating material. In addition to the beauty of the high-pitched sound typical of a quest, the sound quality is deep. On the exterior, there is a feeling of use such as dark spots on the terminals (Tamai Jun) Maintenance information: 2025.12.4 continuity confirmed Accessories: none

PYTHON/1.0mU.S.A

Ask 25-48190-24600-00
PYTHON/1.0m
Manufacture:AudioQuest
Original price: JPY 98,000
Price: JPY 19,818(pair)
U.S.A
Arrival: 2025-12-04 19:46:40
description
The disposal price has been reduced (member prices are not applicable) 2025/12/4 sales price 28,000 yen RCA cable 1.0m, the upper series “Python” of the AudioQuest interconnect cable. In addition to the balanced triple PSC+ conductor, Teflon tube air insulation is used as an insulating material. In addition to the beauty of the high-pitched sound typical of a quest, the sound quality is deep. On the exterior, there is a feeling of use such as dark spots on the terminals (Tamai Jun) Maintenance information: 2025.12.4 continuity confirmed Accessories: none

model 7U.S.A

Ask 25-48073-23014-00
model 7
Manufacture:marantz
Original price: JPY 159,000
Price: JPY 689,091
U.S.A 1959 made
Arrival: 2025-12-18 20:25:18
description
The price has been reduced. 2025/12/18 Sales price 798,000 yen Maintained using carefully selected parts such as vacuum tubes, electrolysis, block capacitors, etc. You can enjoy a glossy mid to high range sound with a high sense of transparency and a thick, exquisite balance. It's a model that has been over half a century since it went on sale for analog fans, but it's still one they admire. The lustrous, indescribable tone is an appeal that cannot be enjoyed on modern devices. There is a feeling of use such as a line scratch on the left side of the front panel, small scratches on the wood case, dullness, and dirt on the back. Serial 7-21677 (Murakoshi Yoichi) Maintenance information: 2025.12.17 maintained (each switch and selector contact repair, vacuum tube ECC83 x 1, shield case replacement, replacement and addition of 3 50μF block capacitors, 200μF electrolytic capacitors and 5 others, vacuum tube socket and RCA jack caulking repairs. (*Operation has also been checked with AC 100 to 117 V) Accessories: none Main specifications: tubular control amplifier, vacuum tube, ECC83/12AX7, 3-stage NF equalizer, NF type step switching control, W453 x H185 x D267 mm, 7.5 kg

GRANDIOSO D1XJapan

Ask 25-48457-26179-00
GRANDIOSO D1X
Manufacture:ESOTERIC
Original price: JPY 3,600,000
Price: JPY 1,981,818(pair)
Japan 2019 made
Shop: Osu shop
Arrival: 2025-12-20 20:07:03
description
Super dreadnought discrete mono DAC, completely designed in-house. It is a DAC that can be said to be the ultimate form of the original master sound that Esoteric aims for, and the sound is extremely vivid due to luxurious material input and powerful power supply, and the sound that is faithful to recording is attractive anyway. I have the impression that the artist makes all the sounds he wanted to convey. Not only is it compatible with a wide range of supplementing frequencies, but it is also compatible with MQA codecs. There is a small scratch on the front of the exterior (Sasaki Shota) Maintenance information: 2025.12.20 Operation confirmed (COX and OPT sounds OK with ES-LINK. (Sound output is OK up to USB PCM768/DSD512) Accessories: manual, power cable, connection cable Main specifications: Discrete mono DAC digital input EL-LINK2 system (PCM44.1k to 768kHz DSD2.8MHz~22.5MHz) XLR terminal 1 system (PCM88.2k to 384kHz*Dual AES format DSD2.8MHz with single connection PCM32k to 192 kHz DSD2.8MHz) RCA2 system (PCM32 to 192 kHz DSD2.8MHz) Optical Digital 1 System (PCM32k~192kHz DSD2.8MHz) USB 1 System (PCM44.1k~768kHz DSD2.8MHz~22.5MHz) W445×H132×D448mm LCH23.1 kg RCH23.0 kg

P-0s(Ver.up)Japan

Ask 25-47849-20951-00
P-0s(Ver.up)
Manufacture:ESOTERIC
Original price: JPY 1,600,000
Price: JPY 498,182
Japan 1997 made
Shop: Osu shop
Arrival: 2025-12-20 20:06:53
description
Manufacturer's maintenance has been completed by TEAC headquarters service! This is a ver.up product from P-0 to P-0S. A reference machine that challenged the limits of performance as the ultimate CD-only transport. The enormous amount of information with a scale and a solid skeleton is unique even now. The sense of balance that surpassed even the P-01 reference machine of later years is attractive. There are no noticeable scratches (Sasaki Shota) Maintenance information: 2025.12.20 Manufacturer maintained (CD mechanical parts have been replaced. Mechanical ASSY disassembly, cleaning, partial dismantling of the lubrication clamper mechanism, rework, correction, and repair. Carriage ASSY center exit adjustments were carried out. Tray shaft dismantled, cleaned, and greased. Laser pickup ASSY cleaning and adjustment carried out. Each connector was reworked, corrected, and repaired. Each part is inspected, checked, operation confirmed, and cleaned.) Accessories: remote control, copy of manual, spike base, power cable, connection cable Main specifications: digital output/BNC x 1, XLR x 1, RCA x 1, ST x 1 [body part] W445 x H178 x D530 mm weight 30 kg [power supply part] W220 x H178 x D439 mm weight 17.2 kg

1567AU.S.A

25-48078-23069-00
1567A
Manufacture:ALTEC
Price: JPY 543,636(pair)
U.S.A
Shop: Osu shop
Arrival: 2025-12-20 20:05:44
description
Maintained! Comes with a self-made wood case! This is a vacuum tube type 5ch mono mixer amplifier popular with Altec fans. You can hear a sound with a thick core not found in modern amplifiers, and it also makes you feel the excellent separation between left and right sides, which is mono. It brings out the features of Altec's amplifiers and speakers to the fullest. *In this model, Mix1 is Phono, MIX2 and 3 are MIC, and MIX4 and 5 are AUX. This model is a mixer, so please keep the volume to a minimum when not using anything other than MASTER (Sasaki Shota) Maintenance information: 2025.12.20 maintained (◎ missing adapter for common mix 1,2 → 2 adapter missing → added in our product 2 sets x 2 · AC cord 3P → 2P connector missing addition 1 x 2 · resistance 1W and 1/2W deterioration replacement 2 x 2 · rubber leg replacement and missing addition 4 pieces · vacuum tube socket and RCA jack caulking repair ◎ No. 11334 · block Capacitor 125 μF heat generation failure → replacement with an electrolytic capacitor, 1 W resistance deterioration replacement ◎ No. 929, 0.1 μF defective oil capacitors, 2 replacement ※ operation has been checked with AC 100 to 117 V for others) Accessories: none Main specifications: vacuum tube type 5ch mono mixer amplifier W523 × H310 × D175 mm 14.5 kg

6SN7GT

25-48054-23443-00
6SN7GT
Manufacture:RCA
Price: JPY 12,727(pair)
Shop: Osu shop
Arrival: 2025-12-20 20:00:23
description
Pair tube, double triode tube, American black plate, square getter, measured value 102/96 (rejected value 50) with white box ※Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: white box

6CA7/EL34

Ask 25-48407-25828-00
6CA7/EL34
Manufacture:RCA
Price: JPY 16,364(pair)
Shop: Osu shop
Arrival: 2025-12-20 19:59:49
description
Pair tube thick tube, made in America, measured value 48/46 (rejected value 30), both tubes with original box have burnt getters, so they are inexpensive ※Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: original box

RCAケーブル/1.0m

Ask 25-48332-25664-00
RCAケーブル/1.0m
Manufacture:自作
Price: JPY 909(pair)
Arrival: 2025-12-20 19:52:03
description
RCA cable 1.0m pair self-made cable with ground wire. Switchcraft Plugs You can see a feeling of use on the exterior, paint marks, dullness, scratches, etc. (Kobayashi Hitoshi) Maintenance information: 2025.12.13 continuity confirmed Accessories: none

RCAケーブル/1.5m

Ask 25-48332-25663-00
RCAケーブル/1.5m
Manufacture:自作
Price: JPY 2,727(pair)
Arrival: 2025-12-20 19:52:01
description
RCA cable 1.5m pair self-made Neutrik plug exterior, paint marks, dullness, scratches, etc., and a feeling of use can be seen (Kobayashi Hitoshi) Maintenance information: 2025.12.17 continuity confirmed Accessories: none

AKURATE DSMUK

Ask 25-48435-26050-00
AKURATE DSM
Manufacture:LINN
Original price: JPY 900,000
Price: JPY 225,455
UK 2011 made
Arrival: 2025-12-20 19:50:38
description
Digital stream player+multi-input stereo preamp It is equipped with a high sound quality network playback function and a wide range of input terminals, including analog/digital input, MM/MC phono input, and HDMI input. It brings out the full appeal of music from all media. The exterior has dullness, scratches, small scratches, etc. Serial 1291671 (Yonejima Satoshi) Maintenance information: 2025.12.20 operation confirmed (software4.107.544) Accessories: remote control, power cord Main specifications: Support file/FLAC/WAV/ALAC/AIFF/AAC/MP3/WMA compatible sampling frequency 44.1 to 192 kHz compatible bits 16-24 bit Ethernet interface 100Base-T RJ45 input terminal/Ethernet/XLR balanced input 1 system/2 RCA unbalanced input systems (1 of which can be set to an MC/MM phono) /SPDIF coaxial digital input 3 System/TOS optical digital input 3 systems/HDMI input 4 systems output terminal/1 XLR balanced output system/2 RCA unbalanced output systems/1 SPDIF coaxial digital system/TOS optical digital input 1 system/HDMI output (passthrough) 1 system W380 x D380 x H91 mm 6 kg

DF-55Japan

This item has been sold.You can't purchase now. 25-48420-25933-00
DF-55
Manufacture:Accuphase
Original price: JPY 750,000
Price: JPY 452,727 Sold Out
Japan 2011 made
Arrival: 2025-12-17 20:18:46
description
The price has been drastically reduced! 2025/12/17 This is an Accuphase digital channel divider with a sales price of 548,000 yen. It is equipped with 4 channels (4 way) as standard specifications, and a higher order filter with even fewer errors has been achieved by adopting a high-accuracy, high-speed DSP. The ease of operation, including connectivity and ease of use, is also one of its attractions. The exterior is good with no conspicuous scratches. Serial A1Y063 (Fujisawa Yukishi) Maintenance information: 2025.12.17 operation confirmed Accessories: power cord Main Specifications: Digital Inputs: COAXIAL, OPTICAL, HS-LINK Analog Inputs: RCA, XLR Digital Outputs: COAXIAL, HS-LINK Frequency Characteristics: 2.0 to 50,000 Hz Slope Characteristics: 6dB, 12dB, 18dB, 24dB, 48dB, 96dB W465 x H151 x D396mm 14.7 kg

A-S501Japan

This item has been sold.You can't purchase now. 25-48433-26029-00
A-S501
Manufacture:YAMAHA
Original price: JPY 60,000
Price: JPY 27,091 Sold Out
Japan 2014 made
Shop: Osu shop
Arrival: 2025-12-19 19:54:37
description
Pre-main amplifier equipped with optical/coaxial digital audio input compatible up to 192 kHz/24 bit. It is an amplifier with high driving power and a delicate tone. You can enjoy everything from digital sound sources to analog discs with clean sound (Kojima Yosuke) Maintenance information: 2025.12.19 Operation confirmed Accessories: remote control, instruction manual, original box Main specifications: 85W+85W (8Ω) line input 5 systems (RCA), 1 phono input system (MM), 2 digital inputs (coaxial/optical), damping factor 240 or more W435 x H151 x D387 mm 10.3 kg

MC2300U.S.A

Ask 25-48005-22411-00
MC2300
Manufacture:McIntosh
Original price: JPY 858,000
Price: JPY 310,000
U.S.A 1971 made
Arrival: 2025-12-13 20:12:19
description
The price has been drastically reduced! 2025/12/13 sales price 398,000 yen Maintained! The balance between thickness and sharpness of the sound is good, and it conveys the breath of jazz and rock. The thick sound image and rich mid-range, which cannot be enjoyed with today's amplifiers, are exquisite. The range is moderate but the Old McKinn sound has instantaneous power. The slightly smokier tone than the MC2500 is attractive. Serial 3Y916 (Fujisawa Yukishi) Maintenance information: 2025.12.13 Maintained (each replaced due to defective and deteriorated input volume, meter lamp, speaker terminal, and RCA jack. Missing screws added, damaged screws and feet replaced. SW type cleaning. Bias and offset checks. Output audio check) Accessories: copy of instruction manual, power cord Main specifications: 300W+300W (mono 600W) 0.5 to 16 ohms W483 x H267 x D432 mm 58.1 kg 

A3700Japan

Ask 25-47943-21738-00
A3700
Manufacture:LUXKIT
Original price: JPY 97,500
Price: JPY 152,727
Japan
Shop: Osu shop
Arrival: 2025-12-15 20:13:01
description
The price has been reduced. 2025/12/15 sales price 178,000 yen Equipped with GEC KT88 x 4 bottles! This is an A3700 that has been refreshed by replacing 6 film capacitors and spark killers. Combined with the acclaimed OY transformer, you can enjoy the soft and powerful sound of a vacuum tube. The exterior has line scratches on the top plate and overall dullness (Mizusaki Ryo) Maintenance information: 2025.12.14 maintained (vacuum tube 6240 deterioration replacement, 2 spark killer deterioration replacements, 6 film capacitors 0.47 μF and other defects and deterioration replacements, vacuum tube sockets and RCA jack caulking repairs*Other operation checked with AC100V (rated output 78W SP: 8Ω)) Accessories: none Main specifications: 40W+40W vacuum tube KT88×4 6AQ8×2 6240G×2 W400×H127×210mm 17.7 kg

2+22UK

Ask 25-48080-23077-00
2+22
Manufacture:QUAD
Price: JPY 361,818
UK 1953 made
Arrival: 2025-12-05 20:10:37
description
The price has been drastically reduced. 2025/12/5 sales price 448,000 yen Electrolytic capacitors and film capacitors were replaced in 2024/2, and full maintenance has been completed. 100V model! A separate amplifier that is still popular even now, 70 years after its release. The thickness, luster, and tension of the sound are all emotionally composed, and perfectly express the sound of the instrument. Anyway, it has thick, firm mid-bass, and the tasteful sound unique to vacuum tubes is impressive. There is a scratch on the top plate of the preamp. Serial 42710 57078/59299 (Murakoshi Yoichi) Maintenance information: 2025.3.23 maintained (blue AC cord plug and socket disassembly and rewiring procedure, etc. Operation checked with AC 100 to 117 V (SP impedance: 16 ohm wiring)) 2024.2.17 maintained (electrolytic capacitor replaced with 25 μF European 1 x 2 · film capacitor 0.1 μF replaced with European product 3 x 2 · resistor 1/2W → 1W replaced 3 x 2 · vacuum tube socket caulking repair. Replace with a product similar to No. 57078 vacuum tube socket. QUAD22 · Internal Toggle Switch Contact Failure Replacement · Spark Killer Deterioration Replacement 2 pcs · Film Capacitors 0.5 μF and others Deterioration Replacement 8 pcs · Electrolytic Capacitors Replaced with European Products · 6 Resistors 1W and 1/2W Deterioration Replacements · CD Input Reduction Measures for Radio1 Only → 1/4 W Resistance Added 4 · RCA Jack Caulking Repair. Other operation checked (measured at 11 to 17 W SP: 16 Ω with rated output AC 100 to 117 V) *The P/U adapter is an AA type. (Please use the black terminal when listening in mono) Accessories: instruction manual (copy), power cord Main specifications: 11-17W (16Ω) [QUAD22] EF86 × 2 ECC83 × 2 input PHONO, RADIO, TAPE W267 × H89 × D148 mm 3.2 kg [QUAD2] KT66 × 4 EF86 × 2 GZ32 15W+15W W321 × H162 × D119 mm 8.2 kg/unit

C20(前期)U.S.A

Ask 25-47956-21870-00
C20(前期)
Manufacture:Mcintosh
Price: JPY 361,818
U.S.A 1959 made
Shop: Osu shop
Arrival: 2025-12-10 20:12:04
description
The disposal price has been reduced. Member prices are not applicable. 2025/12/10 sales price 498,000 yen Refreshed and maintained, including replacement of 3 block capacitors, 4 ceramic capacitors, and 14 oil capacitors! The rare early C20 is now in stock. More than 60 years have passed since it was released, and thorough maintenance has revived the sound from that time. It has a thick, soft touch and glossy mid-high range typical of Old McKinn, and vividly expresses music (Daiki Goto) Maintenance Information: 2025.12.10 Maintained (Main Volume Nut Loosening and Retightening Repair/Volume Wobble Reduction Treatment → Knob Replacement (Replacement Parts Offset) · Oil Capacitors 0.1 μF and others replaced with 16 BlackBeauty, BlackCat · Block Capacitors 2000 μF etc. Deterioration Replacements 3 · Diode Deterioration Replacements 2 · Vacuum Tube Sockets and RCA Jack Caulking Repairs ※ Other to AC100117V Operation has been checked) Accessories: none Main specifications: Vacuum tube used 6x4, 12AX7, 12AU7 dimensions W390 x H146 x D315 mm weight 8.3 kg

B-2Japan

Ask 22-34115-27462-00
B-2
Manufacture:YAMAHA
Original price: JPY 200,000
Price: JPY 170,909
Japan 1976 made
Shop: Osu shop
Arrival: 2025-12-18 16:26:25
description
The price has been reduced. 2025/12/18 Sales price 198,000 yen Refreshment maintenance completed with attention to details such as volume, replacement of 33 electrolytic capacitors, switch disassembly and cleaning, etc. The diamond called Yamaha FET shows off its excellent purity and transparency. With this brush-up, the sharpness of standing up and the firmness of the sound have been completely revived, and you can enjoy the supreme Yamaha sound. You can see a feeling of use such as appearance, dullness, scratches, etc. (Kobayashi Hitoshi) Maintenance information: 2025.2.4 maintained (power supply SW disassembly cleaning, grease up. Front control part push SW disassembly cleaning. Volume exchange. Fixed the place where transistor migration occurred. Replace 28 parts with 20% capacity change in electrolytic capacitors. Speaker relay disassembly, contact cleaning. Rear slide switch disassembly and cleaning. Replace the deterioration of the cushions on the back of the power LED board and the back of the protection board. idling adjustment. DC balance adjustment. Internal cleaning. AC cable cleaning. RCA terminal and AC plug cleaning. Exterior cleaning) Accessories: copy of instruction manual Main specifications: output 100W+100W (8Ω) SNR 115dB W436 x H151 x D370 mm 26 kg
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