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MC275U.S.A

Ask 25-47042-15052-00
MC275
Manufacture:McIntosh
Price: JPY 816,364
U.S.A
Arrival: 2025-09-09 20:11:20
description
Full maintenance has been completed, including replacement of deteriorated vacuum tubes and capacitors! The original MC275 is the pinnacle of Macintosh tube amplifiers. A famous historical machine that intensely entertains music with its velvety luster and strong tone. Instead of resolution or wide range, the rich sound that makes you feel a sense of life is truly the Macintosh sound itself. ※The hood is not included. On the exterior, transformer scratches, oxidation, etc. are conspicuous. (YONEJIMA Satoshi) Maintenance information: 2025.9.9 maintained (vacuum tube KT88 and vacuum tube 12AZ7 deterioration replacement/oil capacitor 0.22 μf, etc., DC leak replacement, 6 DC leak replacement, 12 μF electrolytic capacitor, 12 μF domestic product replacement, block capacitor 100/30 μf deterioration replacement/AC cord deterioration exchange/resistance 2W, 1w,1/2 w deterioration replacement · 7 vacuum tube 12AX7 ham noise replacement/RCA jack deterioration replacement 2 pieces · vacuum tube socket caulking repair . Other operation checked (measured at 66 to 95 W SP: 8 Ω with rated output AC 100 to 117 V) Accessories: No accessories Main specifications: 75W+75W (in stereo) 150W (in mono) vacuum tube/12AX7 x 2, 12AX7 x 1, KT88 x 4, 12AU7 x 2, 12AT7 x 2 frequency band 16 Hz to 60 kHz input sensitivity 0.5 V input impedance 250 kΩ dimensions W311 x H203 x D438 mm weight 30.4 kg

SV-300BEJapan

Ask 19-21898-24901-00
SV-300BE
Manufacture:SUN AUDIO
Original price: JPY 295,000
Price: JPY 189,091
Japan
Arrival: 2025-08-27 15:45:23
description
The disposal price has been reduced! (Member prices are not applicable) 2025/8/27 sales price 298,000 yen A straight vacuum tube amplifier without any hassle. Equipped with a Tamura Trance that even enthusiasts will be convinced of. It is excellent at expressing the subtlety of live instruments, and I feel the depth of the sound. It is an attractive car with a very comfortable mid-high range and the softness unique to vacuum tubes (Oikawa Tetsuji) Maintenance information: 2025.8.26 operation confirmed Accessories: power cable Main specifications: 300B single 8W+8W vacuum tube used: 300B x 2 6SN7 x 2 5U4G x 1 W360 x H210 x D270 mm 16 kg

W-7MU.S.A

Ask 25-46948-14398-00
W-7M
Manufacture:Heathkit
Price: JPY 170,909(pair)
U.S.A
Shop: Osu shop
Arrival: 2025-09-06 20:08:58
description
The price has been reduced. 2025/9/6 sales price 198,000 yen Maintained! Tubular mono power amplifier using EL34 as output tube. The first stage uses 1 6AN8. It is an extremely high power amplifier that produces 55W with a simple configuration. In addition to volume volume, the front is equipped with a damping factor switch. The output is compatible with 4/8/16 ohms (Sasaki Shota) Maintenance information: 2025.9.6 maintained (◎ common volume knob broken replacement 1 x 2 · main volume cracked replacement 1 piece x 2 · vacuum tube socket and RCA jack re-caulking repair ◎ One side volume knob deterioration replacement 1 piece ※ Other operation checked (measured at 28 to 41 W SP: 8 Ω with rated output AC 100 to 117 V) 2021.5.22 maintained (◎ common · 150 μF defective replacement x 2 · block capacitor 200 μF deterioration replacement 2 x 2 · oil capacitor 0.1 μF other deterioration replacement x 2 · vacuum tube socket and RCA jack caulking repair · BIAS re-adjustment ◎ 1 side · SP terminal defect replacement 2 pieces · Oil capacitor 0.1 μF deterioration replacement※ Other operation checked (measured at 41 to 55 W SP: 8 Ω at rated output AC 100 to 117 V) ※ Please connect the output to the top and bottom (8 ohms up and down if it is 8 ohms). The front DAMPING FACTOR will be effective by setting it to MAX. (*The back meter section of this model is not wired) Accessories: none Main specifications: 55W output using vacuum tube EL34 x 2 6AN8 x 1 W380 x H145 x D215 mm

MQ68CJapan

Ask 20-26843-14799-00
MQ68C
Manufacture:LUXMAN
Original price: JPY 89,000
Price: JPY 152,727
Japan 1978 made
Arrival: 2025-09-06 19:36:00
description
It has been refreshed due to overhauls such as vacuum tube sockets and condenser replacements! After all, the warm and glossy sound quality is excellent for stringed instruments. It has a soft and vivid sound not found in transistors, making it perfect for listening for long periods of time. There are scratches and bumps on the exterior. Serial 11800646 (Fujisawa Yukishi) Maintenance information: 2025.9.6 maintained (vacuum tube socket, electrolytic capacitor, film capacitor, RCA terminal, semi-fixed VR, spark killer, SP terminal, diode, micro SW, fuse replacement. Load test (8Ω load 1kHz 25W+25W), input/output waveform confirmation, sound output check) Accessories: No accessories Main specifications: 50CA10 push-pull output 30W+30W W410 x H183 x H160 mm 13.8 kg

C20(後期)U.S.A

This item has been sold.You can't purchase now. 25-46867-13761-00
C20(後期)
Manufacture:McIntosh
Price: JPY 430,000 Sold Out
U.S.A 1959 made
Shop: Osu shop
Arrival: 2025-09-04 20:10:07
description
The price has been reduced. 2025/9/4 sales price 498,000 yen All 29 pieces, from block capacitors to couplings, have been replaced, and maintenance has been completed in every detail, such as disassembling and cleaning the main volume! Late C20 model. A well-balanced model with a high frequency that is easy to remove due to rectifier tube rectification and a thickness that makes you feel safe. Please play the rich, sweet, and deep tone of the mid-range on the horn speaker. Serial 234A9 (Yasuhito Koshihama) Maintenance information: 2025.9.4 maintenance completed (main volume noise reduction measures → shaft ground reinforcement treatment · vacuum tube 6AQ8 installation → ECC83 replacement (2025.8.20 supply arrived) · AC cord instability exchange · block capacitor 40 μF x 2 ham noise exchange · block capacitor 1000 μF x 2 deterioration replacement · 5 defective electrolytic capacitors replaced · 8 μF or other defective electrolytic capacitors replaced · DC leakage and deterioration replacement of 0.47 μF and others 11 resistors, 1 W and 1/2 W deterioration replacements, 6 switching noise reduction measures → 1/4 W additional resistors, 2 additional resistors, vacuum tube socket and RCA jack caulking repair*Other operation checked with AC 100 to 117 V) Accessories: copy of the manual Main specifications: tubular phono 2 system phono equalizer curve variable use vacuum tube ECC83 x 5 ECC82 x 2 EZ90 x 1 W440 x H165 x D316 mm 8.7 kg

MQ68CJapan

Ask 21-31242-07648-00
MQ68C
Manufacture:LUXMAN
Original price: JPY 89,000
Price: JPY 152,727
Japan 1978 made
Arrival: 2025-08-11 20:02:44
description
The interior has been thoroughly reviewed, such as replacing the vacuum tube socket and condenser, and has been refreshed with a bu-overhaul! After all, the warm and glossy sound quality is excellent for stringed instruments. It has a soft and vivid sound not found in transistors, making it perfect for listening for long periods of time. The exterior is dull. Serial 811243 (Tomonori Asaine) Maintenance information: 2025.8.11 Maintained (vacuum tube (50CA10×4), vacuum tube socket, electrolytic capacitor, film capacitor, RCA terminal, semi-fixed VR, spark killer, SP terminal, diode, micro SW, fuse replacement. Load test (8Ω load 1kHz 25W+25W), input/output waveform confirmation, and sound output check *About the NFB changeover switch This unit is equipped with an NFB changeover switch so that you can select the desired sound quality. (However, if you operate this switch during operation of this unit, shock noise will occur, so be sure to turn off the NFB ON-OFF before switching the power switch.) Accessories: none Main specifications: 50CA10 push-pull output 30W+30W W410 × H183 × H160 mm 13.8 kg

KMQ60Japan

Ask 20-27822-26831-00
KMQ60
Manufacture:LUXKIT
Original price: JPY 62,000
Price: JPY 143,636
Japan 1969 made
Shop: Osu shop
Arrival: 2025-07-25 19:42:45
description
Maintenance was carried out with attention to detail, such as replacing capacitors and replacing SP terminals! A kit model of a power amplifier using a 50CA10 3-pole output tube and an OY15 type output transformer, composed of circuits and parts conforming to the MQ60 type, which has been evaluated by LUXMAN. The sound of a vacuum tube has a sense of volume that seems to meet expectations, and it gently envelops you. Sounds that don't require scale are particularly unique, and the slight thickness that spreads from below the mid-range makes you feel comfortable and relaxed (Sasaki Shota) Maintenance information: 2025.7.25 Maintained (vacuum tube socket, block capacitor, electrolytic capacitor, oil capacitor, SP and RCA terminals, semi-fixed VR, fuse, spark killer, diode, micro SW replacement. Load tests, input/output waveform checks, and sound output tests are OK. Vacuum tube sockets, block capacitors, electrolytic capacitors, oil capacitors, SP and RCA terminals, semi-fixed VR, fuses, spark killers, diodes, micro SW replacement. Load test, input/output waveform confirmation, load test (1 kHz sine wave, at 8 ohm load: 25W+25W, actual measurement), sound output test OK.) Accessories: none Main specifications: 30W+30W 50CA10 push pull W410 x H160 x D205 mm 13.8 kg

KMQ60Japan

Ask 24-44962-28128-00
KMQ60
Manufacture:LUXKIT
Original price: JPY 62,000
Price: JPY 143,636
Japan 1969 made
Arrival: 2025-07-04 20:09:08
description
In 2024/7, maintenance was carried out with attention to detail, such as capacitor replacement and SP terminal replacement! A kit model of a power amplifier using a 50CA10 3-pole output tube and an OY15 type output transformer, composed of circuits and parts conforming to the MQ60 type, which has been evaluated by LUXMAN. The sound of a vacuum tube has a sense of volume that seems to meet expectations, and it gently envelops you. The sound, which doesn't require scale, is particularly unique, and the slight thickness that spreads from below the mid-range makes you feel comfortable. The exterior has rust, oxidation, and scratches. Serial 574788 (Tomoho Asaine) Maintenance information: 2024.7.11 Maintained (vacuum tube sockets, block capacitors, electrolytic capacitors, oil capacitors, SP and RCA terminals, semi-fixed VR, fuse holder replacement. Check input/output waveforms and perform sound output checks. Impedance switching SW, gain VOL complete disassembly, contact refinement, and application of grease to prevent oxidation and sulfidation. Input/output waveform confirmation, load test (1 kHz sine wave, at 8 ohm load: 27W+27W, actual measurement), sound output test) Accessories: none Main specifications: 30W+30W 50CA10 push pull W410 x H160 x D205 mm 13.8 kg

MQ60 customJapan

Ask 25-46414-10062-00
MQ60 custom
Manufacture:LUXMAN
Original price: JPY 79,800
Price: JPY 152,727
Japan 1972 made
Arrival: 2025-06-28 19:40:45
description
Vacuum tube sockets, block capacitors, electrolytic capacitors, oil capacitors, SP and RCA terminal replacements, SW and VOL disassembly contact polishing, oxidation and sulfidation prevention grease coating, etc., have been refreshed and maintained. This model is based on the concept of making sounds even more straightforward than the MQ60. The warmth of the tone and the indescribable luster sound are truly lackstones. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi) Maintenance information: 2025.6.28 maintained (impedance switching SW/gain VOL disassembly contact polish, oxidation/sulfidation prevention grease application, input/output waveform confirmation, load test (1kHz sine wave, 8Ω load: 20W+20W confirmation) sound output test) 2025.6.26 maintained (vacuum tube socket, block capacitor, electrolytic capacitor, oil capacitor, SP and RCA terminals, semi-fixed VR, fuse holder replacement. Load test (8Ω load 1kHz 20W+20W), input/output waveform confirmation, sound output check performed) Accessories: none Main specifications: used vacuum tube 50CA10 x 4 12BH7A x 2 6267 x 1 EF86EH x 1 output 25+25W (4/8/16 ohm switch switching) speaker output 1 system W410 x H160 x D205 mm 13.8 kg

KMQ60Japan

Ask 21-30248-00701-00
KMQ60
Manufacture:LUXKIT
Original price: JPY 62,000
Price: JPY 143,636
Japan 1969 made
Arrival: 2025-01-18 19:46:17
description
Maintenance was carried out with attention to detail, such as replacing deteriorated parts and completely disassembling VOL and repolishing contacts! A kit model of a power amplifier using a 50CA10 3-pole output tube and an OY15 type output transformer, composed of circuits and parts conforming to the MQ60 type, which has been evaluated by LUXMAN. The sound of a vacuum tube has a sense of volume that seems to meet expectations, and it gently envelops you. The sound, which doesn't require scale, is particularly unique, and the slight thickness that spreads from below the mid-range makes you feel comfortable. There are scratches and dullness on the exterior due to use over time. Serial 574994 (Tomonori Asaine) Maintenance information: 2025.1.18 Maintained (impedance switching SW, gain VOL complete disassembly contact refinement, oxidation and sulfidation prevention grease applied. Vacuum tube sockets, block capacitors, electrolytic capacitors, oil capacitors, SP and RCA terminals, semi-fixed VR, fuse holder replacement. Load test (8Ω load 1kHz 30W+30W), input/output waveform confirmation, sound output check performed) Accessories: none Main specifications: 30W+30W 50CA10 push pull W410 x H160 x D205 mm 13.8 kg

MQ60Japan

Ask 24-44036-20672-00
MQ60
Manufacture:LUXMAN
Original price: JPY 79,800
Price: JPY 152,727
Japan 1969 made
Arrival: 2024-11-24 20:22:21
description
The internal parts have been thoroughly reviewed and brushed up! The main part of the SQ38F is an independent power amplifier, the famous MQ60. The natural, smooth sound quality with a high sense of transparency is attractive. You can relax and enjoy classical music and vocals in a natural way. The deep sound quality that cannot be expressed with the latest vacuum tube amplifiers is exceptional. Rust and paint peeling can be seen on the exterior. Serial 812212 (Fujisawa Yukishi) Maintenance information: 2024.11.24 Maintained (vacuum tube socket, block capacitor, electrolytic capacitor, oil capacitor, SP and RCA terminals, semi-fixed VR, fuse, spark killer, diode, micro SW replacement. Load tests, input/output waveform checks, and sound output checks are carried out. Impedance switching SW/gain VOL disassembly contact refinement, oxidation and vulcanization prevention grease application, input/output waveform confirmation, load test (1 kHz sine wave, at 8 ohm load: 25W+25W, OK) Accessories: No accessories Main specifications: output 30W+30W dimensions W410 x H160 x D205 mm weight 13.8 kg

KMQ60Japan

Ask 13-73002-79464-00
KMQ60
Manufacture:LUXMAN
Original price: JPY 62,000
Price: JPY 143,636
Japan 1969 made
Shop: Osu shop
Arrival: 2025-02-01 20:10:10
description
Maintenance was carried out with attention to detail, such as replacing capacitors and replacing SP terminals! A kit model of a power amplifier using a 50CA10 3-pole output tube and an OY15 type output transformer, composed of circuits and parts conforming to the MQ60 type, which has been evaluated by LUXMAN. The sound of a vacuum tube has a sense of volume that seems to meet expectations, and it gently envelops you. The sound, which doesn't require scale, is particularly unique, and the slight thickness that spreads from below the mid-range makes you feel comfortable. (Sasaki Shota) Maintenance information: 2025.2.1 Maintained (vacuum tube sockets, block capacitors, electrolytic capacitors, oil capacitors, SP and RCA terminals, semi-fixed VR, fuse holder replacement. Load tests (8Ω load 1kHz 30W+30W), input/output waveform confirmation, and sound output checks were carried out. Impedance switching SW, gain VOL complete disassembly, contact refinement, and application of grease to prevent oxidation and sulfidation. Input/output waveform confirmation, load test (1 kHz sine wave, at 8 ohm load: 30W+30W, actual measurement) Accessories: none Main specifications: 30W+30W 50CA10 push pull W410 x H160 x D205 mm 13.8 kg
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