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△Manufacture▽ | △Model/Title▽ | △Price▽ | △Arrival date▼

C40U.S.A

Ask 26-51105-22006-00
C40
Manufacture:McIntosh
Original price: JPY 580,000
Price: JPY 316,364
U.S.A 1993 made
Arrival: 2026-10-14 20:16:38
description
Maintenance has been completed for each SW, VOL cleaning, lamp replacement, etc. While being clear and precise, this is a powerful machine that also has the thickness and intensity of sound of successive Macintosh control amplifiers. It is a famous machine with a deep sense of nostalgia that is compatible with both vintage and modern models. Using the familiar 5-band equalizer, it is also possible to change the desired tone depending on the song. There are no visible scratches on the exterior, etc., and it is good with just the degree of dullness (Kobayashi Hitoshi) Maintenance information: 2026.10.14 maintenance completed (each SW, VOL cleaning, lamp replacement, relay replacement, replacement of diodes in the power supply, deteriorated capacitors, operation check) Accessories: instruction manual, original box Main specifications: built-in monitor amplifier with 5-band equalizer (20W x 2/8Ω), compatible with balanced input/output, PHONO (MM) compatible, W468 x H183 x D432 mm, 12 kg

C34VU.S.A

Ask 26-51127-22257-00
C34V
Manufacture:McIntosh
Original price: JPY 540,000
Price: JPY 252,727
U.S.A 1986 made
Arrival: 2026-10-14 20:07:32
description
52 electrolytic capacitors have been replaced, and maintenance has been completed, such as disassembling other switches, volumes, etc., and polishing contacts! Macintosh's classic preamp. It reproduces clear mid-range and glossy tones. This model should be used by music fans who enjoy all kinds of sources. The full range of functions, such as a 5-band equalizer and a 7-source input selector, is also attractive. The exterior is dull and has a feeling of use. Serial JEB9630 (Tamura Eiji) Maintenance information: 2026.10.14 Maintained (due to poor contact between the rotary switch and push switch, the disassembly contact polishing contact grease was applied. The disassembly contacts were cleaned for balance volume, main volume, and thickness. The equalizer volume contacts have been cleaned. The panel indicator lamp has been replaced. The electrolytic capacitor has been replaced. Panel peeling has been fixed. The internal dust was very dirty, so I cleaned it. Each input/output operation was checked.) Accessories: none Main specifications: 100V specification equalizer up and down 12dB (center frequency/30Hz/150Hz/500Hz/1.5kHz/10kHz) rated output 20W+20W (8Ω) W445 x H192 x D395 mm 11.8 kg

C34VU.S.A

Ask 26-49288-06489-00
C34V
Manufacture:McIntosh
Original price: JPY 540,000
Price: JPY 252,727
U.S.A 1986 made
Arrival: 2026-10-14 20:07:29
description
Maintenance has been completed, such as disassembling switches, cleaning contacts, and replacing deteriorated parts. Macintosh's classic preamp. It reproduces clear mid-range and glossy tones. This model should be used by music fans who enjoy all kinds of sources. The full range of functions, such as a 5-band equalizer and a 7-source input selector, is also attractive. You can see a feeling of use, such as appearance, dullness, small scratches, etc. (Kobayashi Hitoshi) Maintenance information: 2026.10.14 Maintained (input selector dismantling, contact cleaning, through-hole soldering treatment for both Listen and Record. Transistor replacement for the time being, operation check) 2026.5.22 maintenance completed (each SW, VOL cleaning, lamp replacement. Push button dismantling cleaning, pin jack cleaning. Pin jack re-solder. Glass panel peeling correction. Operation check, rubber foot installation) Accessories: instruction manual Main specifications: 100V specification equalizer up and down 12dB (center frequency/30Hz/150Hz/500Hz/1.5kHz/10kHz) rated output 20W+20W (8Ω) W445 x H192 x D395 mm 11.8 kg

TA-2000FJapan

Ask 12-67283-45776-00
TA-2000F
Manufacture:SONY
Original price: JPY 138,000
Price: JPY 180,000
Japan 1971 made
Arrival: 2026-10-10 20:11:21
description
Maintenance was carried out in every detail, such as 67 electrolytic capacitors, 56 transistors, RCA terminal replacement, and disassembly and cleaning of various switches. This time, the cover was repaired and embossed, and the exterior was also beautifully finished! The nostalgic design and strong sound make you feel the strength of Sony of yesteryear. Please enjoy this car full of charm that cannot be obtained with modern audio. Serial 202862 (Tamura Eiji) Maintenance information: 2026.10.10 Maintained (67 electrolytic capacitors, 56 transistors, 4 semi-fixed resistors, 5 rear double volumes, 2 spark killers, 2 microphone terminals, DIN terminals, power supply micro switch, fuse, 2 power cushions (ept sealer), 2 meter lamps, 2 zener diodes, and main VR replaced. Disassemble and clean the 12 rotary switches (power, meter level, BASS, TREBLE, OVER BASS, OVER TREBLE, mode, filter, function 1, function 2, monitor), output level switches, main VR, balance VR, headphone VR, and impedance select switches, and grease is applied to the contacts. For the 20 DIN terminals and RCA terminals, replace the caulking fixings with M3 x 10 screws, nuts, and spring washers. Clean the headphone jack and AUX3 jack terminals. Each board was re-soldered and flux cleaned. Process 3 baking sheets at 23 RCA terminals, and install and replace 4 gold RCA terminals (black) and 19 RCA terminals (black). The power supply was adjusted to a high voltage of 150V and a low voltage of 37V. The input/output waveforms were checked and the left-right balance was checked, and a comprehensive operation test was carried out by connecting a power amplifier. As a result, I confirmed that it works fine. (Cover repair/painting) Accessories: none Main specifications: Phono (MM/MC compatible) W400 x H149 x D315 mm weight 9 kg

P-306RSJapan

Ask 26-50798-19405-00
P-306RS
Manufacture:ONKYO
Original price: JPY 110,000
Price: JPY 72,545
Japan 1979 made
Arrival: 2026-10-09 20:04:07
description
Maintained! Although it is a model with very few stocks, it is one with high cost performance. PHONO MM/MC switching is included, and the selector display is easy to understand, and it is a highly practical pri. The mild sound quality and high frequency spread are very comfortable. This is a model suitable for analog. The exterior has line scratches, bumps, and paint bald spots. Serial 23100716 (Fujisawa Yukishi) Maintenance information: 2026.10.9 maintenance completed (main volume disassembly polishing, balance, bus, treble volume disassembly and polishing, switch disassembly and polishing (mode, rec selector, input selector, cartridge selector, subsonic, phono selector, AUX switching, muting), indicator lamp replacement, solder main part repair, pin jack polishing, internal inspection and cleaning, operation confirmation.) Accessories: none Main specifications: PHONO2 system super turbo system phono MM/MC compatible W450 x H99 x D407 mm 7 kg

C28U.S.A

Ask 26-50732-18783-00
C28
Manufacture:McIntosh
Original price: JPY 348,000
Price: JPY 234,545
U.S.A 1970 made
Arrival: 2026-10-08 20:21:28
description
Maintenance has been completed, such as replacing the capacitor and disassembling and cleaning each rotary switch! Preamps were sold during the heyday of analog. Compared to C29 and later amplifiers, it has a rich and glossy mid-range. This is truly a preamp representing the golden age of Macintosh. Dullness and a feeling of use can be seen. Serial 81X47 (Fujisawa Yukishi) Maintenance information: 2026.10.8 Maintained (The disassembly contacts were cleaned due to poor contact with rotary switches. The push switch contacts were cleaned and contact grease was applied. The volume was checked and 6 electrolytic capacitors were replaced. Panel peeling has been fixed.) Accessories: No accessories Main specifications: input terminals, RCA4, PHONO input, 2 pre-out systems, W445 x H195 x D395 mm, 16 kg

Model 3300U.S.A

This item has been sold.You can't purchase now. 26-51277-23391-00
Model 3300
Manufacture:marantz
Original price: JPY 225,000
Price: JPY 117,273 Sold Out
U.S.A 1972 made
Shop: Osu shop
Arrival: 2026-10-04 20:07:45
description
The price has been drastically reduced. 2026/10/4 sales price 148,000 yen Maintenance was completed in 2026/3. It is a model designed by US Marantz and manufactured in Japan. It develops an American sound with a dry air feel and strong push. The design is also a vintage control amplifier with a taste unique to the 70s. The exterior is in good condition with no noticeable scratches (Oikawa Tetsuji) Maintenance information: 2026.3.13 Maintained (each volume, rotary switch dismantled, all cleaned. Other internal, check each board) Accessories: none Main specifications: line input 5 systems, phono (mm), 2 systems, 1 pre-out system, W391 x H146 x D222 mm, 7.3 kg

C504U.S.A

Ask 26-50700-18502-00
C504
Manufacture:McIntosh
Original price: JPY 338,000
Price: JPY 134,545
U.S.A 1980 made
Arrival: 2026-09-27 20:09:07
description
Maintenance has been completed, including 16 capacitors and 5 lamps replaced, and each SW and VOL cleaning. Mackin's preamps packed into a compact package. Comes with PHONO inputs, so each input is sufficient. With 30 Hz, 750 Hz, and 10 kHz tone controls, you can freely adjust the sound quality. You can see a feeling of use such as appearance, dullness, scratches, etc. (Kobayashi Hitoshi) Maintenance information: 2026.9.26 maintenance completed (each SW, VOL contact, pin jack ground float → cleaning, power supply board pattern correction, parts replacement, lamp break replacement, connector cleaning, panel peeling correction, 100V change, full volume disassembly contact refinement, assembly after applying protective grease. (Check operation with an oscilloscope) Accessories: none Main specifications: PHONO2 line 4 line W408 x H105 x D350 mm weight 5.6 kg

Model 203U.S.A

Ask 26-50458-16260-00
Model 203
Manufacture:BGW
Original price: JPY 280,000
Price: JPY 90,727
U.S.A 1978 made
Shop: Osu shop
Arrival: 2026-09-27 19:50:05
description
54 capacitors have been replaced, all switches, volume cleaning, etc. have been maintained. First arrival! A very rare preamp. All volume types are attenuator type, and the tone control is designed so you can feel that the left and right are independent. You can imagine a thick tone from the outside, but surprisingly, it has a delicate tone and a clean sound. There are dullness and small scratches appropriate to the model year (Oikawa Tetsuji) Maintenance information: 2026.8.29 Maintained (many tantalum capacitors in the board are out of capacity → replacement, poor push button SW contact → dismantling cleaning, others SW, VOL cleaning, pin jack cleaning, caulking, left and right level differences, but this is an error in the VOL itself. (We will not be able to respond if the dedicated parts are defective in the future) Accessories: none Main specifications: stereo system control center frequency characteristics 20Hz to 20kHz total harmonic distortion ratio 0.01% or less gain PHONO 42dB/HIGH LEVEL 22dB/10dB (switching) S/N ratio PHONO 82dB/HIGH LEVEL 90dB (LOW GAIN) ・80dB (HIGH GAIN) PHONO input impedance 47kΩ HIGH LEVEL input Impedance 90kΩ PHONO maximum input 100mV (1kHz) HIGH LEVEL maximum input 10V rated output 4.0V maximum output 8V (600Ω) tone control ±18dB (50Hz, 15kHz) high/low pass filter 20Hz/12kHz, 18dB/oct input PHONO x 2/HIGH LEVEL x 5 AC outlet 2 systems power consumption 10W power supply AC120V/240V, 50-400Hz external dimensions W482.6 x H133.3 x D298.4 mm, mass approx. 8.2 kg

PAT-4U.S.A

Ask 26-50953-20561-00
PAT-4
Manufacture:DYNACO
Original price: JPY 52,000
Price: JPY 58,909
U.S.A 1970 made
Shop: Osu shop
Arrival: 2026-09-26 20:10:12
description
The disposal price has been reduced (member prices are not applicable). 2026/9/26 sales price is 79,800 yen. Maintained! A thick and strong tone that allows you to fully enjoy the good old American sound. The coloring has been removed from the circuit with a simple configuration and it makes a crunchy sound. It is compatible with 600 ohms of input, so it is also possible to connect commercial devices. The exterior is dull and has small scratches appropriate to the model year (Mizusaki Ryo) Maintenance information: 2026.9.26 maintained (compatible with internal VOL and SW cleaning, in-board C, etc. have been replaced, ~ operation check) Accessories: copy of instruction manual Main specifications: 3 line inputs, 1 phono system, W345 x H105 x D205 mm, 4.5 kg

ROK-L2UK

Ask 26-50886-20089-00
ROK-L2
Manufacture:ROKSAN
Original price: JPY 400,000
Price: JPY 96,364
UK 1993 made
Arrival: 2026-09-17 19:58:36
description
The disposal price has been reduced! (Member prices are not applicable) 2026/9/17 sales price 148,000 yen Maintained! *The gang error in the original volume was severe, so I replaced it with a new 1-axis volume. Because of this, left and right balance cannot be adjusted. A high-end preamp for the British ROKSAN line. Comes with a dedicated separate power supply ROK-DS1. A versatile machine with good mid-low range loss, soft sound quality, and sharpness. The good balance shines in this price range. I don't choose a power amplifier either. The exterior has dullness, scratches, etc. Serial 52259 (Yonejima Satoshi) Maintenance information: 2026.9.17 Maintained (The original is a 2-axis double volume, but since it is not available, it is a normal 1-axis double volume. Rotary switch cleaning cable coating peeling correction DC voltage check (Voice check for each input/output) Accessories: power cord Main specifications: ROK-L2 5 input systems 2 output systems W430 × H75 × D330 mm 5 kg ROK-DS1 W215 × H80 × D325 mm 7 kg

C28U.S.A

Ask 26-50781-19316-00
C28
Manufacture:McIntosh
Original price: JPY 348,000
Price: JPY 234,545
U.S.A 1970 made
Arrival: 2026-09-16 20:11:52
description
The front panel has been replaced with a brand new one! Maintenance has been completed, including 14 capacitor replacements. Preamps were sold during the heyday of analog. Compared to C29 and later amplifiers, it has a rich and glossy mid-range. This is truly a preamp representing the golden age of Macintosh. You can see the exterior, dullness, rust, abrasions, etc. and a feeling of use (Kobayashi Hitoshi) Maintenance information: 2026.9.15 maintenance completed (front panel replacement, SW, VOL cleaning, lamp deterioration replacement, capacitor deterioration replacement, pin jack cleaning, power supply capacitor deterioration replacement, shield cable terminal soldering treatment, pin jack ground removal → plating wire treatment, push button TAPE1, 2 dismantling and cleaning) Accessories: copy of instruction manual Main specifications: input terminals, RCA4, PHONO input, 2 pre-out systems, W445 x H195 x D395 mm, 16 kg

44UK

Ask 26-49603-09157-00
44
Manufacture:QUAD
Original price: JPY 198,000
Price: JPY 116,364
UK 1979 made
Arrival: 2026-09-11 20:00:09
description
Maintained! It has an elegant and glossy tone, and the output sensitivity can be selected from 3 levels. Combinations with 405 are common, but 606 etc. are also a good match. It has the natural texture of the acoustic sauce and the smooth tone that feels good against the skin. (FUJISAWA KOSHI) Maintenance information: 2026.5.15 Maintained (replacement of coupling tantalum capacitors, bypass capacitors, etc. within each board. Each rotary switch is balanced VOL cleaned. Power Switch and Spark Killer Capacitor Replacement (*Since this is an early model, there are sound leaks even in VOL0) Accessories: copy of instruction manual, power cord, connection cord Main specifications: 2 LINE inputs, 1 PHONO input, 1 phono sensitivity, 1m/3m/10mV switching, W321 x H103 x D203 mm, 4 kg

MARK-8DJapan

Ask 26-50796-19395-00
MARK-8D
Manufacture:Chriskit
Original price: JPY 59,800
Price: JPY 36,182
Japan
Shop: Osu shop
Arrival: 2026-09-06 20:08:36
description
The disposal price has been reduced (member prices are not applicable). 2026/9/6 sales price 59,800 yen Maintenance has been completed. Kriskit's line-only control amplifier. Simple circuit configuration with no phono input. Although it is a domestic product, it has a crisp, well-extruded American sound, very similar to Dinakit. There are line marks on the front and top plate (Oikawa Tetsuji) Maintenance information: 2026.9.5 maintained (all input level adjustments. Selector switch disassembly contact polishing. I/O pin jack polish Since the TAPE REC switch on this unit does not produce any sound when turned on, the wiring has been corrected to look like a normal amplifier. If you run the LOW BOOST switch immediately after turning on the power, the circuit is not stable, so a popping sound will come in. It will subside over time, but this also seems to be a specification. (There is no problem with the Mylar capacitor capacity using the LOW BOOST circuit) Accessories: none Main specifications: 5 line inputs W380 x H110 x D235 mm 3.3 kg

P-101Japan

Ask 26-50683-18355-00
P-101
Manufacture:LINEAR TECHNOLOGY
Original price: JPY 730,000
Price: JPY 198,182
Japan 1984 made
Arrival: 2026-09-02 20:11:33
description
The disposal price has been reduced (member prices are not applicable). 2026/9/2 sales price is 320,000 yen. Maintained by the manufacturer by Linear Technology! It is equipped with a mechanism that automatically cleans attenuator contacts. Please enjoy the sharp sound and the best of Linear Technology's manufacturing. There is a scratch on the cabinet corner (Daiki Goto) Maintenance information: 2026.9.2 Manufacturer maintained (The contacts on the attenuator were dirty, so I polished them with an ultra-fine particle abrasive and applied contact oil. Check operation after repair is completed. Currently, there are no faults that are a problem and it is operating normally. After that, voltage resistance tests based on the PSE method were carried out. (Passed.) Accessories: power cable Main specifications: PHONO (MM) 1 input system, 2 line inputs, non-contact input switching method, attenuator contact automatic cleaning method, W434 x H177 x D355 mm

C-4Japan

Ask 26-50308-14878-00
C-4
Manufacture:YAMAHA
Original price: JPY 98,000
Price: JPY 89,091
Japan 1978 made
Arrival: 2026-08-22 20:04:40
description
Deteriorated parts have been replaced, and maintenance has been completed, including disassembly contact polishing for switches and volumes! A preamp with plenty of phono that analog users are happy with. There are 3 PHONO inputs, 5 MM cartridge loads, and a dedicated transistor is used for the MC head amplifier, so you can enjoy clear, sharp sound with a clear outline. The exterior has a feeling of use such as dullness and paint correction marks. Serial 01638 (Takahashi Nobuyuki) Maintenance information: 2026.8.22 maintenance completed (switch and volume class disassembly contact polishing tone control circuit equalizer circuit deteriorated capacitor and varistor diode replacement for each circuit board soldering and deterioration, all corrected, lamp broken replacement, POHONO input terminal repair input/output pin jack polish) Accessories: none Main specifications: input terminal/3 phono systems (MM/MM/MC), TAPE2 system, AUX, TUNER power consumption 40W external dimensions W435 x H116 x D376 mm weight 8.5 kg

C32U.S.A

Ask 26-49853-11180-00
C32
Manufacture:McIntosh
Original price: JPY 776,000
Price: JPY 270,909
U.S.A 1977 made
Arrival: 2026-08-20 20:08:10
description
The disposal price has been reduced. Member prices are not applicable. 2026/8/20 sales price 338,000 yen Full volume disassembly, contact polishing, replacement of deteriorated parts such as lamps, relays, etc., panel peeling correction, etc. have been maintained. Comes with a wood cab. The top Macintosh model in the golden age. You can enjoy the thick and bold Macintosh sound. Comes with an easy to handle 5-band equalizer An easy-to-use preamp that can be combined with speakers and power amplifiers of a wide range of ages (Oikawa Tetsuji) Maintenance information: 2026.8.20 Maintained (created because there is no panlock lock pin. The flat cable and connector were created and replaced due to deterioration and peeling of the board-to-board connection flat cable. The electrolytic capacitor has been replaced. Switch, volume, etc. Maintained) 2026.7.19 maintained (each SW, VOL cleaning, lamp deterioration replacement, slide SW dismantling and cleaning, relay deterioration replacement, connector deterioration defect replacement, push button dismantling cleaning, panel peeling correction, all volume disassembly contacts polished, assembled after applying protective grease. (Check operation with an oscilloscope) Accessories: copy of instruction manual Main specifications: input terminals Phono1/2, AUX, Tuner, Tape 1/2/3 output terminals PRE OUT1/2, TAPE OUT1/2 W406 x H138 x D330 mm 11.8 kg

C-2Japan

Ask 26-50680-18318-00
C-2
Manufacture:YAMAHA
Original price: JPY 150,000
Price: JPY 107,273
Japan 1979 made
Arrival: 2026-08-04 20:02:40
description
The famous C-2 has 43 capacitors replaced, and all selectors, switches, and volumes have been disassembled and polished! 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 a feeling of use appropriate for the model year, such as multiple line scratches and bumps on the top plate. ※There is a noticeable scratch on the back of the top plate. Serial 14711 (Yamato Yuki) Maintenance information: 2025.8.5 Maintained (noise at all inputs: disassembled and cleaned due to poor contact with the input selector. Electrolytic capacitor replacement. Disassemble and clean the volume, each selector, and switch. Panel, terminal, and housing cleaning. Symptoms not indicated: The power lamp flashes, abnormal noise from the power switch → power switch, surge absorber replaced. Poor sound quality during phono MC input → input terminal MC signal GND line correction) 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

C-2Japan

Ask 26-50307-14870-00
C-2
Manufacture:YAMAHA
Original price: JPY 150,000
Price: JPY 107,273
Japan 1979 made
Arrival: 2026-07-24 19:54:31
description
Full maintenance, from replacing deteriorated capacitors to disassembling and cleaning each selector switch! The C-2 is a masterpiece! 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 a feeling of use such as dullness. Serial 12599 (Asaine Tomoho) Maintenance information: 2026.7.24 Maintained (Contact grease will be applied to each selector switch after disassembly, cleaning/polishing. No symptoms were confirmed regarding balance gaps, but after disassembling and cleaning the main/balance volume and polishing the metal contacts, contact grease will be applied. Replace 10 tantalum capacitors (the electrolytic capacitors have been replaced once and the capacity etc. were OK) and the power switch was replaced. (Panel, knobs, housing, terminal cleaning, readjustment of parts, aging test) 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

C-2aJapan

Ask 20-29195-36603-00
C-2a
Manufacture:YAMAHA
Original price: JPY 170,000
Price: JPY 125,455
Japan 1978 made
Arrival: 2026-07-15 20:18:08
description
Maintenance has been completed, such as replacing 29 deteriorated capacitors and disassembling and cleaning the main balance volume! 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. The exterior has a feeling of use such as dullness. Serial 11944 (Tomoho Asaine) Maintenance information: within the phono circuit, replacement due to resistance failure, replacement of peripheral circuit components (capacitors, semi-fixed resistors), main balance volume disassembly, contact cleaning/polishing) 2026.5.25 Maintained (phono circuit soldering correction and transistor magmentation removal, disassembly, cleaning and cleaning of each lever selector. Electrolytic capacitor and power switch replacement. Clean each selector. Each part is readjusted and aging tested. Panel, knobs, housing, and terminal cleaning*Please note that there is a possibility that slight differences will remain when the volume starts up) Accessories: copy of instruction manual Main specifications: PHONO input 2 systems (MM/MC) DC amplifier configuration W435 x H72 x D320 mm 7.9 kg

PRA-2000Japan

Ask 26-50298-14780-00
PRA-2000
Manufacture:DENON
Original price: JPY 200,000
Price: JPY 125,455
Japan 1979 made
Arrival: 2026-07-11 20:05:34
description
The price has been drastically reduced. 2026/7/11 sales price 158,000 yen Maintenance completed, including replacement of 65 deteriorated capacitors, solder correction in each circuit, etc. A popular DENON control amplifier for its excellent phono equalizer. MC head amplifiers are famous for their quality, and they fully draw out the amount of information in the cartridge. It's a neat sound typical of a domestic amplifier with clear yet solid mid-range sound. In addition to the exterior and lettering disappearing, you can also see a feeling of use such as dullness, abrasions, etc. (Kobayashi Hitoshi) Maintenance information: 2026.7.11 Maintained (power lamp replaced. Front lid tightening adjustment, phono circuit, etc., soldering correction, replacement of 65 deteriorated capacitors, volume disassembly contact cleaning, balance volume cleaning, contact grease application after disassembly and contact polishing of each selector switch, panel, knob, housing, terminal cleaning, etc., various part adjustments, aging tests) Accessories: copy of instruction manual Main specifications: CR equalizer with 3 PHONO inputs MC head amplifier W455 x H132 x D357 mm 10.5 kg

C28U.S.A

Ask 26-50418-15833-00
C28
Manufacture:McIntosh
Original price: JPY 348,000
Price: JPY 234,545
U.S.A 1970 made
Arrival: 2026-07-07 20:24:06
description
Maintenance completed in February 2025! A popular preamp sold during the heyday of analog. The mid-range is more glossy and has a sexier vibe than those after C29. That rich sound can truly be said to be a preamp representing the golden age of McKinn. In addition to the exterior, as described above, a feeling of use can be seen, such as dullness, small scratches, etc. (Kobayashi Hitoshi) Maintenance information: 2025.2.20 Maintained (power cord replaced. MODE selector lamp replacement. Replace 10 electrolytic capacitors. TONE volume disassembly contact cleaning, other switch contact cleaning. Main volume inspection OK, PHONO2 trim volume poor contact disassembly contact adjustment. (Internal inspection of each input/output operation, other cleaning) Accessories: copy of instruction manual Main specifications: input terminals, RCA4, PHONO input, 2 pre-out systems, W445 x H195 x D395 mm, 16 kg

C-2aJapan

Ask 21-30329-01275-00
C-2a
Manufacture:YAMAHA
Original price: JPY 170,000
Price: JPY 125,455
Japan 1978 made
Shop: Osu shop
Arrival: 2026-07-02 20:47:31
description
Maintenance has been completed, such as replacing 29 electrolytic capacitors and disassembling and cleaning the volume and lever switch! 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 is a feeling of use on the exterior, such as scratches and dullness (Mizusaki Ryo) Maintenance information: 2026.7.1 Maintained (Transistor magmentation in the phono circuit has been removed and soldering corrected. Electrolytic capacitor and power switch replacement. Volume, lever switch disassembly, contact polishing, contact grease application. Capacitor and wiring bonding removal. Clean the panel, knobs, housing, and terminals. Each part has been readjusted and aging tested) Accessories: copy of instruction manual Main specifications: PHONO input 2 systems (MM/MC) DC amplifier configuration W435 x H72 x D320 mm 7.9 kg

Integra P-308Japan

Ask 26-48675-01000-00
Integra P-308
Manufacture:ONKYO
Original price: JPY 130,000
Price: JPY 107,273
Japan 1986 made
Shop: Osu shop
Arrival: 2026-06-18 20:28:59
description
The price has been drastically reduced. 2026/6/18 sales price is 130,000 yen. In addition to the first side wood veneer replacement, it was spray painted to give it a shiny finish! The interior has also been fully maintained, including dismantling the main volume and replacing nearly 20 parts! A model designed with serious awareness of being compatible with the digital age. The range is wide, and the smooth mid-high range and tight bass are also attractive, and it is also recommended for use as an introduction to separation. On the exterior, the veneer on the side panel is curved and turned over. Other than that, there is a feeling of use such as dullness and corrosion on the top plate (Ryo Mizusaki) Maintenance information: 2026.5.13 maintained (① main volume dismantling and cleaning ② bus, treble volume dismantling and cleaning ③ switch disassembly and polishing (input selector, tape, recout 1, 2, mode out 1, 2, cartridge selector) ④ output relay replacement ⑥ phono circuit transistor, capacitor replacement ⑦ solder repair ⑦ interior and exterior inspection and cleaning, pin jack polishing, each input/output confirmation, operation confirmation. (Veneer replacement and painting.) Accessories: copy of instruction manual Main specifications: MM/MC compatible W465 x H103 x D403 mm 8.5 kg

44UK

Ask 21-33652-24216-00
44
Manufacture:QUAD
Original price: JPY 198,000
Price: JPY 116,364
UK 1973 made
Shop: Osu shop
Arrival: 2026-05-10 20:41:45
description
Maintenance has been completed, such as replacing 12 deteriorated capacitors, replacing 1 resistor, and creating a new connection cable. A small British QUAD preamp. It has an elegant and glossy tone, and the output sensitivity can be selected from 3 levels. Combinations with 405 are common, but 606 etc. are also a good match. It has the natural texture of the acoustic sauce and the smooth tone that feels good against the skin. The adjustment door is newly made of acrylic, but there is no hinge function and it is simply placed on it like a lid (Oikawa Tetsuji) Maintenance information: 2026.5.10 Maintained (power supply filter C replacement. AC Spark Killer C and card board bypass C replacement (VOL cleaning for each SW cleaning, connection cable creation) Accessories: power cable, connection cable Main specifications: 2 LINE inputs, 1 PHONO input, 1 phono sensitivity, 1m/3m/10mV switching, W321 x H103 x D203 mm, 4 kg

44UK

Ask 22-37278-51088-00
44
Manufacture:QUAD
Original price: JPY 198,000
Price: JPY 116,364
UK 1979 made
Arrival: 2026-05-04 20:08:22
description
Maintained! Input/output RCA specification! It has an elegant and glossy tone, and the output sensitivity can be selected from 3 levels. Combinations with 405 are common, but 606 etc. are also a good match. It has the natural texture of the acoustic sauce and the smooth tone that feels good against the skin. *The switch bank on the top plate has been removed and cannot be used (the TAPE input itself can be used.) You only need to put the acrylic cover on the top plate. Serial 024572 (Fujisawa Yukishi) Maintenance information: 2026.5.3 maintained (replacement of a total of 17 coupling capacitors and other capacitors in the main board. Each VOL and SW cleaning. AC spark killer replacement.) Accessories: power cord, connection cord Main specifications: 2 LINE inputs, 1 PHONO input, 1 phono sensitivity, 1m/3m/10mV switching, W321 x H103 x D203 mm, 4 kg

Mark-8DJapan

Ask 26-49502-08174-00
Mark-8D
Manufacture:Chriskit
Original price: JPY 59,800
Price: JPY 36,182
Japan
Shop: Osu shop
Arrival: 2026-04-29 20:09:52
description
The disposal price has been reduced (member prices are not applicable). 2026/4/29 sales price 59,800 yen In addition to selector disassembly and polishing, maintenance including pin jack polish has been completed! Kriskit's line-only control amplifier. Simple circuit configuration with no phono input. Although it is a domestic manufacturer, it is an amplifier with an American sound that is very similar to Dinakit and has a crisp, extruded American sound. The exterior is dull and has old scars (Ryo Mizusaki) Maintenance information: 2026.4.29 Maintained (selector switch disassembly contact polishing. I/O pin jack polish Check the input level left and right. RECOUT wiring correction. (Please note that this unit is not equipped with a relay, so if you switch the switch “etc. after turning on the power, it will make a popping sound.) Accessories: none Main specifications: 5 line inputs W380 x H110 x D235 mm 3.3 kg

PRA-2000Japan

Ask 25-47215-16332-00
PRA-2000
Manufacture:DENON
Original price: JPY 200,000
Price: JPY 125,455
Japan 1979 made
Arrival: 2026-04-24 18:53:16
description
The price has been drastically reduced! 2026/4/24 sales price 158,000 yen, 72 electrolytic capacitors have been replaced, and overhauled, including volume switch disassembly and cleaning! A popular DENON control amplifier for its excellent phono equalizer. MC head amplifiers are famous for their quality, and they fully draw out the amount of information in the cartridge. It's a neat sound typical of a domestic amplifier with clear yet solid mid-range sound. There is a bruise on the corner of the front top plate (Sasaki Shota) Maintenance information: 2026.4.24 Maintained (balance volume pattern corrected. PHONO in-board resistor replacement. Electrolytic capacitor replacement. Main volume disassembly, contact cleaning. MAX/MIN stopper damage replacement. Balanced volume contact cleaning. Clean all mechanical switch disassembly contacts. Soldering fixes for each board. Board cleaning. In-circuit power supply voltage regulation. DC offset adjustment. GND terminal replacement. Internal cleaning. Internal harness, rewiring. exterior cleaning. RCA terminals, screw cleaning. Each part was inspected and operation tested.) Accessories: none Main specifications: CR equalizer with 3 PHONO inputs MC head amplifier W455 x H132 x D357 mm 10.5 kg

PRA-2000Japan

Ask 26-49164-05418-00
PRA-2000
Manufacture:DENON
Original price: JPY 200,000
Price: JPY 125,455
Japan 1979 made
Arrival: 2026-04-17 19:51:58
description
The price has been drastically reduced! 2026/4/17 sales price 158,000 yen 17 deteriorated capacitors have been replaced, volume, switch disassembled, cleaned, etc., and maintained! A popular DENON control amplifier for its excellent phono equalizer. MC head amplifiers are famous for their quality, and they fully draw out the amount of information in the cartridge. It's a neat sound typical of a domestic amplifier with clear yet solid mid-range sound. The exterior has dullness and scuff marks. Serial 1110967 (Fujisawa Yukishi) Maintenance information: 2026.4.17 Maintained (lamp replacement. Balance volume disassembly and cleaning. Disassemble and clean the selector switch. 17 electrolytic capacitors were replaced. Volume disassembly cleaning. Disassemble and clean each selector and rear changeover switch. Cleaning panels, knobs, housings, and terminals. (Readjustment of each part, aging test.) Accessories: No accessories Main specifications: CR equalizer with 3 PHONO inputs MC head amplifier W455 x H132 x D357 mm 10.5 kg

C27U.S.A

Ask 26-49204-05663-00
C27
Manufacture:McIntosh
Original price: JPY 358,000
Price: JPY 216,364
U.S.A 1977 made
Arrival: 2026-03-13 19:59:26
description
Maintenance has been completed, including 21 capacitors replaced, changed to 100V specifications, and push-button SW dismantling and cleaning! It is a hidden popular model as the successor to the C26. It is an amplifier from the golden age of McKinn that is highly popular with music fans, with a sound reminiscent of a rich, thick vacuum tube sound. It makes vintage speakers sound intense. Serial BV3159 (Fujisawa Yukishi) Maintenance information: 2026.3.13 Maintained (push switch and rotary switch disassembly contacts cleaned due to poor switch contact. Contact grease application. Volume contact cleaning. Electrolytic capacitor replacement. Front panel peeling correction. Change the voltage to AC 100V. (Check the operation of each input/output) Accessories: No accessories Main specifications: input PHONO 1 · 2 AUX 1 · 2 TUNER TAPE 1 · 2 W435 × H188 × D395 mm 11.8 kg
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