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Manufacture | Model/Title | Price | Arrival date

WP-1100AJapan

Ask 24-41748-01783-00
WP-1100A
Manufacture:RAMSA
Original price: JPY 118,000
Price: JPY 18,182
Japan
Shop: Osu shop
Arrival: 2024-02-03 20:13:58
description
※There are no operation confirmation issues, but since it is for business use, it will be handed over as is without warranty. Excellent heat dissipation performance due to the servo cooling system. It clearly brings out stable sound quality even when used continuously for a long period of time, and the sound source and pre are simply brought out. Overall, there is a feeling of use such as dirt and friction (Ryo Mizusaki) Maintenance information: 2024.2.3 sound output confirmed Accessories: none Main specifications: 80 W+80 W (8 Ω continuous output) 110 W+110 W (4 Ω continuous output) 220 W (BTL 8 Ω continuous output) frequency characteristics 20 Hz to 20 kHz +0 -0.5 dB (at 4 Ω 1 W output) dimensions 480 x 102 x 394 mm

WP-C104Japan

Ask 24-41748-01782-00
WP-C104
Manufacture:RAMSA
Original price: JPY 180,000
Price: JPY 27,273
Japan
Shop: Osu shop
Arrival: 2024-02-03 20:14:00
description
※There are no operation confirmation issues, but since it is for business use, it will be handed over as is without warranty. It is an attractive amplifier with a maximum output of 100W during 4-channel operation, and the strength unique to commercial use. There is a feeling of use such as scratches and dullness on the exterior as a whole (Ryo Mizusaki) Maintenance information: 2024.2.3 sound output confirmed Accessories: none Main specifications: 80 W x 4 (8 Ω continuous output) 100 W x 4 (4 Ω continuous output) 200 W (BTL 8 Ω continuous output) W480 x H88 x D417 mm weight 12.5 kg

B-12Japan

Ask 23-39479-11896-00
B-12
Manufacture:LUXMAN
Original price: JPY 125,000
Price: JPY 33,455
Japan 1977 made
Arrival: 2023-06-12 19:47:59
description
The disposal price has been reduced. Member discounts are not applicable. 2023/6/12 sales price 49,800 yen ※1 mono amplifier only. The display lamp visible through the lattice is a transistor mono power amplifier with an indescribable design. As for the sound quality, it is a powerful sound with a sense of overhang while making you feel thick, and the low frequencies are not sluggish, making you listen to a pleasant sound. The exterior is dull all over, scratches on the top plate, etc., and there is a feeling of use (Kobayashi Hitoshi) Maintenance information: 2023.6.13 Maintained (output relay contact correction input volume disassembly contact correction protection circuit transistor replacement input terminal polish) Accessories: none Main specifications: effective output 150 W, input level adjustment, SNR 110 dB, dimensions W436 x H95 x D328 mm, weight 11.5 kg/1 unit

DLH-100U.S.A

Ask 23-41499-27805-00
DLH-100
Manufacture:QUATRE
Price: JPY 36,182
U.S.A
Shop: Osu shop
Arrival: 2024-01-18 20:16:08
description
The price has been drastically reduced. 2024/1/18 sales price 49,800 yen Maintained! An American-made amplifier from the 1970s that can hardly be seen today. Circuits for self-preservation, such as security, correction, and protection, have been cut off, and I think that handsome atmosphere is well reflected in the sound. It has the same feeling of use as the model year (Daiki Goto) Maintenance information: 2024.1.18 Maintained (check capacitors, resistors, transistors, etc. as is OK. bias check) Accessories: none Main specifications: size (actual measurement) W406 x H155 x D327 mm weight (actual measurement) 12.2 kg

DLH-100U.S.A

Ask 23-41499-27806-00
DLH-100
Manufacture:QUATRE
Price: JPY 40,727
U.S.A
Arrival: 2024-01-18 20:16:07
description
The price has been reduced. 2024/1/18 sales price 49,800 yen Maintained! An American-made amplifier from the 1970s that can hardly be seen today. Circuits for self-preservation, such as security, correction, and protection, have been cut off, and I think that handsome atmosphere is well reflected in the sound. It has the same feeling of use as the model year (Daiki Goto) Maintenance information: 2024.1.18 Maintained (LED installation (original not available) poor power stage transistor deterioration, defective transistor in the board → replacement. Bias adjustment, operation check.) Accessories: none Main specifications: size (actual measurement) W406 x H155 x D327 mm weight (actual measurement) 12.2 kg

STEREO 120U.S.A

Ask 23-89023-07616-00
STEREO 120
Manufacture:DYNACO
Original price: JPY 94,000
Price: JPY 48,000
U.S.A
Arrival: 2023-05-13 19:59:23
description
Disposal prices have been reduced! (Member discount does not apply) 2023/5/13 sales price 69,800 yen ※Since it is not a DC amplifier, please connect the speaker cable and then turn on the power when making sound. Maintained! 120V specification A transistor stereo power amplifier developed by Dynamo by utilizing technology obtained with tube-type amplifiers in semiconductor circuits. You can enjoy intense, dynamic expressions without asking for precise expressions of sound. You can see the appearance, dullness depending on age, corrosion, etc. (Kobayashi Hitoshi) Maintenance Information: 2023.5.13 Maintained (Power SW Dismantling Contact Cleaning) 2022.8.26 Maintained (Bypass C Replaced. Replace the power stage with a Tr pair. Internal cleaning, operation check. Waveform clip for AC100V. 120V → OK) Accessories: none Accessories: none Main specifications: 60W+60W W330 × H104 × D260 mm 8 kg

DA-A15+DA-M15Japan

This item has been sold.You can't purchase now. 23-41477-27632-00
DA-A15+DA-M15
Manufacture:DIATONE
Original price: JPY 155,000
Price: JPY 58,909 Sold Out
Japan 1978 made
Arrival: 2024-02-10 16:54:40
description
The price has been reduced! 2024/2/10 sales price 69,800 yen Maintained! A level meter DA-M15, which is rare for the DA-A15, was attached to the stereo power amplifier and introduced. The output of the music signal coming out of the power amplifier is detected and indicated with 2 meters for each left and right channel. It plays jazz and rock powerfully with a rough sound, which is unusual for domestic machines. Serial A5500129 (Tomonori Asaine) Maintenance information: 2024.1.22 maintained (3 resistors, deteriorated capacitors, 17 deteriorated capacitors, VR100 kΩ replacement, transistor 2SC2240 2SA970 replacement, other idling, DC balance adjustment, disassembly and cleaning of other speaker relays, etc., internal opening inspection of DA-M15 (power AMP) *Please turn on the DA-A15 side (power AMP) first) Accessories: none Main specifications: DA-M15 backup power outlet Switched 6A external dimensions 480 x 179 x 149 mm weight 5.5 kg DA-A 15 part muting time 5 seconds compatible load impedance 4 to 16 ohms power consumption electrical appliance control law 320 W rated output (8 ohms) 520 W external dimensions 425 x 170 x 285 mm weight 18 kg

PL-2Japan

Ask 23-41499-27810-00
PL-2
Manufacture:CROWN
Price: JPY 63,455
Japan
Arrival: 2024-03-12 19:36:37
description
Maintained! A slightly unusual Crown consumer power amplifier. It is thin and rack-mountable. A lot of straight sounds are alive and well. It is also suitable as a separate introductory machine. The exterior is dark and has small scratches (Oikawa Tetsuji) Maintenance information: 2024.3.12 Maintained (volume volume noise was confirmed, so custom-made volume left and right were replaced, (click sound will disappear due to replacement of custom-made product) Running test with other sounds) Accessories: none Main specifications: 50W+50W (8Ω) W480 x H40 x D320 mm 7.5 kg

B-6Japan

Ask 24-41538-00239-00
B-6
Manufacture:YAMAHA
Original price: JPY 190,000
Price: JPY 63,455
Japan 1980 made
Shop: Osu shop
Arrival: 2024-02-15 20:05:37

Integra DTA-7Japan

This item has been sold.You can't purchase now. 24-42297-05952-00
Integra DTA-7
Manufacture:ONKYO
Original price: JPY 350,000
Price: JPY 72,545 Sold Out
Japan
Shop: Osu shop
Arrival: 2024-03-23 19:52:01
description
Onkyo's 7ch digital power amplifier. Equipped with a unique digital amplifier technology VL digital. Pulsed noise, which can be said to be the source of digital amplifiers up until now, has been eradicated, and minute sounds that have been masked due to the effects of this noise have been faithfully reproduced, and abundant information expressiveness has been achieved. There are no noticeable scratches on the exterior (Sasaki Shota) Maintenance information: 2024.3.23 Each input sound output operation has been confirmed Accessories: power cable Main specifications: rated output 120W x 7ch input RCA, XLR W435 x H175 x D452 mm 18.3 kg

STA-9U.S.A

24-42346-06376-00
STA-9
Manufacture:NuPrime
Original price: JPY 170,000
Price: JPY 81,636
U.S.A 2016 made
Shop: Osu shop
Arrival: 2024-03-27 19:53:13

STA-9U.S.A

24-42346-06377-00
STA-9
Manufacture:NuPrime
Original price: JPY 170,000
Price: JPY 81,636
U.S.A 2016 made
Shop: Osu shop
Arrival: 2024-03-27 19:53:17
description
Comes with original box Genuine fusion coordination. 120W A+D class stereo amplifier Furthermore, it is possible to operate as a 290W mono amplifier with a bridge amplifier. The goal is to achieve a tone unique to vacuum tube amplifiers, and it is designed with a more advanced even-order harmonic circuit. It is in good condition with no conspicuous damage (Oikawa Tetsuji) Maintenance information: 2024.3.27 Operation confirmed Accessories: instruction manual, power cable, original box Main specifications: 120W (stereo), 290W (bridge) input impedance 47kΩ playback frequency band 10Hz-50kHz W235 x H55 x D276mm (including terminals and legs) 4.8 kg

POLARIS 2U.S.A

Ask 24-41976-03452-00
POLARIS 2
Manufacture:SUMO
Original price: JPY 300,000
Price: JPY 81,636
U.S.A 1992 made
Arrival: 2024-03-08 19:48:38
description
The price has been drastically reduced! 2024/3/8 sales price 99,800 yen Maintained! AC120V specification. The low frequency response is good, there is plenty of room above the housing, and I definitely want to listen closely to the mid to high frequencies. It is a power amplifier with an output stage configured using the TL (transconductance linearization) circuit system, which is patented by the company using MOS-FET. BTL connection is possible, and it can be used as a 400W monaural amplifier. The exterior has bumps, scratches, etc. Serial 3200716 (Fujisawa Yukishi) Maintenance information: 2024.3.8 Maintained (all internal checks. C, R, TR, FET, etc. are OK. Operation test) Accessories: power cable Main Specifications: 120W+120W (8Ω) 200W+200W (4Ω) Input Impedance: 47kΩ Damping Factor: 500 W480 x H140 x D300 mm 14.0 kg

520UK

Ask 24-42010-03677-00
520
Manufacture:QUAD
Original price: JPY 260,000
Price: JPY 86,182
UK 1985 made
Arrival: 2024-03-02 20:04:55
description
The price has been reduced. 2024/3/2 sales price 99,800 yen Maintained! professional monitor amplifier It has strength unique to commercial use, and the driving power in the low range is truly remarkable. However, it also has a strong sense of temperature typical of a quad, so it is an amplifier that I would like people who are shunned when the sound is too straight for commercial use to try it once. You can see a feeling of use, such as appearance, dullness, abrasions, etc. (Kobayashi Hitoshi) Maintenance information: 2024.3.2 maintained (internal dismantling all check, Tr, C, R check, ±B INPUT bypass C replacement, Tr, R, etc., all OK, INPUT photocoupler check, operation check) Accessories: copy of instruction manual, power cord, dedicated SP cord (cable length 2.5 m) Main specifications: 100W+100W (8Ω) W483 × H88 × D310 mm 12.5 kg

405UK

Ask 13-76695-00663-00
405
Manufacture:QUAD
Original price: JPY 198,000
Price: JPY 90,727
UK 1975 made
Arrival: 2024-03-22 18:23:46
description
The disposal price has been reduced! (Member prices are not applicable) 2024/3/22 sales price 128,000 yen Maintained! Quad power amplifier Despite its compact body, you can enjoy a smooth, thick sound. It really goes well with speakers made in England, and makes you listen to 70s analog sound with a sense of dynamism. The exterior has a feeling of use such as dullness. Serial 41000 (Tomoho Asaine) Maintenance Information: 2024.3.22 Maintained! (Internal check DC cut C, gain setting C, etc., exchange Tr, etc. check operation check, DIN4P-RCA female cable creation) Accessories: power cable Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg

405UK

Ask 18-15179-07943-00
405
Manufacture:QUAD
Original price: JPY 198,000
Price: JPY 90,727
UK 1975 made
Arrival: 2024-03-20 19:54:41
description
The disposal price has been reduced. Member discounts are not applicable. 2024/3/20 sales price 128,000 yen Maintained! Quad power amplifier. Despite its compact body, you can enjoy a smooth, thick sound. It really goes well with speakers made in England, and makes you listen to 70s analog sound with a sense of dynamism. You can see a feeling of use such as appearance, dullness, abrasions, scratches, stains, etc. (Kobayashi Hitoshi) Maintenance information: 2024.3.19 maintenance (DIN connector replacement, resistance in both other channels, capacitor replacement, each Tr all check) Accessories: connection cable, power cable, instruction manual (copy) Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg

303UK

Ask 19-24559-59155-00
303
Manufacture:QUAD
Original price: JPY 110,000
Price: JPY 90,727
UK 1967 made
Arrival: 2024-03-22 19:55:24
description
Maintained! A classic British Quad stereo power amplifier. Small in size yet full torque. The sound, which is as deep as a tube amp, exudes an appeal that won't fade. There is a feeling of use such as dullness. Serial 3121 (Takasaki Atsushi) Maintenance information: 2024.3.22 maintained (INPUT DIN4P and AC connector replacement, DIN4P-RCA x 2 (1m) creation, internal check, DC cut C, coupling C replacement, RCH offset VOL exchange, constant change in constant voltage circuit) Accessories: copy of manual, power cord, connection cord Main specifications: 45W+45W W120×H159×D324mm 8.2 kg

405UK

Ask 21-33652-24217-00
405
Manufacture:QUAD
Original price: JPY 198,000
Price: JPY 90,727
UK 1975 made
Shop: Osu shop
Arrival: 2024-03-21 19:58:19
description
The disposal price has been reduced. Member prices are not applicable. 2024/3/21 sales price 128,000 yen Maintained! Quad power amplifier Despite its compact body, you can enjoy a smooth, thick sound. It really goes well with speakers made in England, and makes you listen to 70s analog sound with a sense of dynamism. The exterior has a feeling of use appropriate for the model year, such as line scratches on the top plate, rubber footprints, and overall dullness (Mizusaki Ryo) Maintenance information: 2024.3.21 maintained (internal Tn, C, R check, Tn OK, gain setting C, DC cut C, etc. → replacement, DINININPUT connector replacement, cable creation ~ operation check) Accessories: power cord, connection cord, copy of instruction manual Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg

405-2UK

Ask 21-33884-25775-00
405-2
Manufacture:QUAD
Original price: JPY 198,000
Price: JPY 90,727
UK 1975 made
Shop: Osu shop
Arrival: 2023-11-22 20:22:06
description
The disposal price has been reduced (member discount is not applicable) 2023/11/22 is a model that plays a calm and glossy sound even though the sales price is 148,000 yen small. We recommend combining it with European speakers along with the company's Pre-44. A slightly more modern flavor than 405 has been added. There are small scratches and peeling paint (Oikawa Tetsuji) Maintenance information: 2023.11.22 maintained (INPUT pin jack replacement, VOL cleaning. Gain settings for both other channels on the board. Replace the capacitor and DC cut capacitor. (Power stage, driver stage transistor check OK) Accessories: power cable, copy of instruction manual Main specifications: 100W+100W W341 x H115 x D195 mm 9.0 kg

Model 240U.S.A

Ask 24-41978-03467-00
Model 240
Manufacture:marantz
Original price: JPY 195,000
Price: JPY 90,727
U.S.A 1972 made
Arrival: 2024-03-23 16:53:00
description
The disposal price has been reduced! (Member prices are not applicable) 2024/3/7 sales price 128,000 yen Maintained! A crisp, bright, and sharp sound typical of Marantz from the 1970s. Exactly, it's an American sound on the west coast. The design is also a simple design typical of US Marantz. ※The leg is out of stock. The exterior has dullness and small scratches. Serial 4180 (Yonejima Satoshi) Maintenance information: 2024.3.7 Maintained (single CH power stage transistor replacement. Screwdriver transistor resistor replacement. Drive Tr Capacitor Replacement Contact polishing, aging test) Accessories: No accessories Main specifications: 125W+125W (8Ω) W445 × H170 × D265 mm 14.8 kg

303UK

Ask 24-42130-04673-00
303
Manufacture:QUAD
Original price: JPY 110,000
Price: JPY 90,727
UK 1967 made
Arrival: 2024-03-25 19:57:14
description
Maintained! A classic British Quad stereo power amplifier. Small in size yet full torque. The sound, which is as deep as a tube amp, exudes an appeal that won't fade. The exterior has a feeling of use over time, such as dullness and small scratches. Serial 62226 (Yonejima Satoshi) Maintenance Information: 2024.3.25 Maintained (INPUT DIN 4P replacement, internal Tr, C, R all checks. DIN4P-RCA female cable created. Operation check, pattern solder processing) Accessories: power cable, connection cable Main specifications: 45W+45W W120×H159×D324mm 8.2 kg

BA-F1Japan

Ask 23-41122-24959-00
BA-F1
Manufacture:SANSUI
Original price: JPY 120,000
Price: JPY 98,182
Japan 1979 made
Shop: Osu shop
Arrival: 2023-11-26 20:09:53

SA640U.S.A

Ask 24-41957-03317-00
SA640
Manufacture:JBL
Original price: JPY 440,000
Price: JPY 107,273
U.S.A 1976 made
Arrival: 2024-03-02 20:05:33
description
The disposal price has been reduced! (Member prices are not applicable) 2024/3/2 sales price 198,000 yen Maintained! This power amplifier was released around the same time as the SG620. It combines 100W+100W driving power with good sharpness. It reproduces thick sounds unique to JBL from a simple design with only a power switch on a black body. It goes well with 70' SJBL speakers and drives exhilarating. The exterior has front scratches, bends on the power switch, scratches, and repair marks on the top plate. Serial 10623 (Yonejima Satoshi) Maintenance information: 2024.3.2 Maintained (timer relay installed (speaker will be turned on 5 seconds after power is turned on. (Please turn off the VOL when the power is on). Power SW bending correction (deformation of the knob itself is not compatible). Power stage Tr check (Replacement of Tr in the board, level VOL, fuse holder, and C in the power supply board) Accessories: No accessories Main specifications: T-type circuit adopted 100W+100W W432 ✕ H132 ✕ D355mm 19kg

405UK

Ask 20-26328-07478-00
405
Manufacture:QUAD
Original price: JPY 198,000
Price: JPY 107,273
UK 1975 made
Arrival: 2024-03-27 19:36:18

B-2102 MOS VintageJapan

This item has been sold.You can't purchase now. 24-41593-00660-00
B-2102 MOS Vintage
Manufacture:SANSUI
Original price: JPY 317,000
Price: JPY 180,000 Sold Out
Japan 1988 made
Shop: Osu shop
Arrival: 2024-03-22 19:56:17
description
Maintained! Sansui's heavyweight power amplifier. It pursues the essence of a power amplifier, and I am particularly impressed by the strength of the low range and the growth in the high frequency range. Can also be used with large speakers. There are abrasions and bumps in places (Kojima Yosuke) Maintenance information: 2024.3.22 maintained (4 power supply rectifier diodes, 4 fuse replacement protector transistors, 4 speaker relays, deterioration replacement, INPUT selector switch disassembly contact polishing power supply board, power amplifier board, etc.) Accessories: copy of instruction manual Main specifications: 110W+110W (8Ω) impedance 4-16Ω speaker output, 2 line input systems, balance compatible, W450 x H176 x D477 (mm) 35 kg

MC2200U.S.A

Ask 24-41974-03437-00
MC2200
Manufacture:McIntosh
Original price: JPY 568,000
Price: JPY 198,182
U.S.A 1976 made
Arrival: 2024-03-09 20:04:13
description
The price has been drastically reduced! 2024/3/9 sales price 250,000 yen Maintained! AC100V specification MC2205 unmetered type. The intensity, driving power, and sense of attack are astonishing, just like the McKinn Sound in its heyday. It is the sound that jazz fans of yesteryear were looking for, and the sound combined with speakers such as the 4343 is exceptional. The exterior has rust spots, dullness, and line scratches. Serial AU3974 (Fujisawa Yukishi) Maintenance Information: 2024.3.9 Maintained (AC100V specification. Each replacement solder was corrected due to output relays, electrolytic capacitors, and lamp defects and deterioration. Card edge contact cleaning volume and switch cleaning. (Bias and offset check output voice check OK.) Accessories: none Main specifications: output 200W+200W, 400W (mono) W407 x H177 x D372 mm 38.6 kg

MC2105U.S.A

Ask 24-42029-03818-00
MC2105
Manufacture:McIntosh
Original price: JPY 458,000
Price: JPY 207,273
U.S.A 1967 made
Arrival: 2024-03-22 19:55:31

No.23LU.S.A

This item has been sold.You can't purchase now. 24-41863-02644-00
No.23L
Manufacture:Mark Levinson
Original price: JPY 1,040,000
Price: JPY 386,364 Sold Out
U.S.A 1987 made
Shop: Osu shop
Arrival: 2024-03-14 13:22:30
description
Disposal price reduction. 2024/2/19 sales price 448,000 yen A large number of parts have been replaced due to internal deterioration! A stereo power amplifier with a traditional dual mono configuration. The overwhelming driving power and precise sound are attractive. The JBL4343 series is a classic combination, and the TANNOY Westminster makes you listen with plenty of volume by ringing the box. The exterior is scratched on the upper front, and there is a line scratch on the top plate (Mizusaki Ryo) Maintenance information: 2024.2.19 Maintained (32 deteriorated capacitors, 10 relays, front LED lamp replacement. Solder has been fixed. Other inspections and adjustments have been made.) Accessories: power cord, copy of instruction manual, balance short pin Main specifications: stereo power amplifier, dual mono configuration, 200W+200W (8Ω), 800W (8Ω, when connected to a bridge), input impedance 50kΩ, W483 x H210 x D450mm, 40 kg

MC601U.S.A

This item has been sold.You can't purchase now. 24-42309-06050-00
MC601
Manufacture:McIntosh
Original price: JPY 1,700,000
Price: JPY 1,245,455(pair)Sold Out
U.S.A 2012 made
Arrival: 2024-03-25 19:15:13
description
The price has been reduced. 2024/3/25 sales price 1,450,000 yen Macintosh mono power amplifier with creative design and high expressive ability. A balance circuit is configured with all signal paths from input to output. It is a valuable power amplifier with a sense of stability and weight with a sense of stability and weight with 600W of power, and the pressure released from its imposing appearance is a valuable power amplifier with a depth of pocket, from JBL of yesteryear to modern high-end speakers. The exterior is relatively good with only minor scratches (Hiura Katsuji) Maintenance information: 2024.3.25 sound output confirmed Accessories: instruction manual, power cable, original box Main specifications: Rated output: mono 600W (2/4/8 Ω), total harmonic distortion ratio: 0.005% or less Speaker output: 1 system x 3 (1 for 2Ω, x1 for 4Ω, x1 for 8Ω) Input terminals: RCA x 1 system XLR x 1 system 445W x 240H x 559 Dmm 42.2 kg
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