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Manufacture | Model/Title | Price | Arrival date

B-2Japan

Ask 22-34115-27462-00
B-2
Manufacture:YAMAHA
Original price: JPY 200,000
Price: JPY 180,000
Japan 1976 made
Shop: Osu shop
Arrival: 2025-12-18 16:26:25

MC2205U.S.A

Ask 25-48299-24870-00
MC2205
Manufacture:McIntosh
Original price: JPY 788,000
Price: JPY 270,909
U.S.A 1975 made
Shop: Osu shop
Arrival: 2025-12-17 20:27:12
description
Maintained! A masterpiece transistor type power amplifier from McKinn's heyday. The powerful, rich, and thick tone is a popular gem among jazz fans of yesteryear. The sound combined with JBL vintage speakers is exceptional. There is rust on the back corner of the exterior (Mizusaki Ryo) Maintenance information: 2025.12.17 maintained (SP relay, sliders replaced due to plastic cracks in L and R sliders, full METER RANGE, SP switching SW complete disassembly and cleaning, rear input level SW, STEREO/MONO SW, POWER GUARO SW, complete disassembly and cleaning. The SP terminal, RCA terminal, and exterior have been cleaned. Input/output waveform confirmation, meter adjustment (Watts/dB adjustment), load test (1 kHz sine wave, at 8 ohm load: 200W+200W, OK) Accessories: copy of instruction manual Main specifications: 200W+200W (1/2/4/8Ω) input sensitivity 0.75/2.5V W411 × H181 × D368 mm 38.6 kg

MC2300U.S.A

Ask 25-48005-22411-00
MC2300
Manufacture:McIntosh
Original price: JPY 858,000
Price: JPY 326,364
U.S.A 1971 made
Arrival: 2025-12-13 20:12:19
description
The price has been 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 

P-3000Japan

Ask 25-48376-25508-00
P-3000
Manufacture:Accuphase
Original price: JPY 390,000
Price: JPY 243,636
Japan 2004 made
Arrival: 2025-12-12 20:07:55
description
The price has been reduced. 2025/12/12 sales price 298,000 yen A power amplifier that inherits the direct lineage of the first P-300 when Accuphase was founded. It is easily compatible with low load impedances, and the deep, roomy playback sound is attractive. By connecting to a bridge, the driving power of the advanced P-7000 class can be reproduced. Serial I6Y537 (Hiura Katsuji) Maintenance information: 2025.12.12 sound output confirmed Accessories: power cord, instruction manual (copy) Main specifications: 75W+75W (8Ω) 300W (8Ω) single channel 3 para push-pull current feedback amplifier circuit W465 × H180 × D425 mm 24.0 kg when connected to a bridge

B-2XJapan

Ask 23-40645-21346-00
B-2X
Manufacture:YAMAHA
Original price: JPY 270,000
Price: JPY 134,545
Japan 1983 made
Arrival: 2025-12-17 20:18:44
description
Maintained! *The speaker terminals have been replaced with those compatible with Panana plugs. A class-grade power amplifier with 200W x 200W (6Ω) pure A class operation. This model was particularly popular among domestic power amplifiers at the time. There is a sense of scale, and the thick sound is full of fulfillment unique to that time. In particular, the combination with domestic 3-way products such as the Yamaha NS-1000M is excellent. There are small scratches and threads on the exterior. Serial 02183 (Fujisawa Yukishi) Maintenance information: 2025.12.17 Maintained (input volume contact defect replacement. (Both left and right main amplifier boards and power supply board soldering have been corrected.) Accessories: No accessories Main specifications: 240W+240W (4Ω) 200W+200W (6Ω) 170W+170W (8Ω) SNR 124dB dimensions W435 x H165 x D422mm weight 26 kg

STASIS-2U.S.A

Ask 25-48421-25957-00
STASIS-2
Manufacture:Threshold
Original price: JPY 1,138,000
Price: JPY 180,000
U.S.A 1979 made
Shop: Osu shop
Arrival: 2025-12-17 20:26:35
description
Maintained in 2024/5. A Threshold power amplifier that uses a Stasis circuit developed by Nelson Pass. It is a talented model that combines sufficient driving power to make even large speakers sound well, and good sound separation. There are small scratches and dullness on the exterior (Oikawa Tetsuji) Maintenance information: 2024.5.9 maintained (check → large Lch distortion → normal instability in the board vibration test → pattern solder defect (crack) present, other power stage Tr all check, OK, operation check) 2023.3.25 Maintained (breaker switch replacement, operation check) 2023.2.15 Maintained (INPUT shield cable broken → re-soldered ~ operation check) Accessories: power cable Main specifications: rated output 200W+200W (20Hz to 20kHz, 8Ω) W480 x H192 x D480 mm 37 kg 

606UK

Ask 25-48305-24906-00
606
Manufacture:QUAD
Original price: JPY 220,000
Price: JPY 72,545
UK 1986 made
Arrival: 2025-12-17 20:15:48
description
Maintained! The 606 is thick and unimaginable from its compact exterior. The good sound unique to QUAD allows you to enjoy not only classical music, but also jazz vocals in a mild way. The high level of musicality that makes you enjoy the music with a pleasant tone stands out. The exterior has dullness and small scratches over time. Serial Q025197 (Yonejima Satoshi) Maintenance Information: 2025.12.17 Maintained (RCA pin jack replacement. Other internal checks. In-board bypass capacitor replacement. Gain setting capacitor replacement. Tr all check) Accessories: power cable Main specifications: output 140W+140W (8Ω) W321×H140×D238mm 12kg

A20

Ask 25-48391-25678-00
A20
Manufacture:AIYIMA
Price: JPY 16,364
Arrival: 2025-12-17 20:15:21
description
Currently sold. Class D power amplifier with extremely high cost performance incorporating PFFB technology, etc. It's a modern, flat sound with excellent transparency and resolution. If you're looking for a desktop one, take this opportunity. The appearance is fine, with no noticeable scratches, etc. (Kobayashi Hitoshi) Maintenance information: 2025.12.16 Operation confirmed Accessories: power cord, connection cord, power adapter, original box Main specifications: Texas Instruments TPA3255 maximum output 300W+300W (4Ω) impedance 4Ω to 8Ω frequency characteristics 20Hz to 20kHz (±0.5dB) S/N ratio ≥ 116dB input terminal RCA/XLR/TRS combo jack output terminal speaker output (banana plug compatible) subwoofer output (RCA) W142 x H46 x D190 mm 1.1 kg

LA90

Ask 25-48347-25308-00
LA90
Manufacture:TOPPING
Price: JPY 54,364
Arrival: 2025-12-09 19:53:26
description
The price has been drastically reduced. 2025/12/9 sales price 69,800 yen. TOPPING's power amplifier is tuned for extremely clear and accurate sound. You can enjoy it regardless of genre. The appearance is fine, with no noticeable scratches, etc. (Kobayashi Hitoshi) Maintenance information: 2025.12.9 operation confirmed Accessories: instruction manual, original box, jumper cable, AC adapter Main specifications: stereo: 4Ω/120W 8Ω/66W mono: 4Ω/180W 8Ω/220W W220 x H90 x D205 mm approx. 3 kg (actual measurement)

SE-A808Japan

This item has been sold.You can't purchase now. 25-48371-25467-00
SE-A808
Manufacture:Technics
Original price: JPY 35,000
Price: JPY 4,545 Sold Out
Japan 1980 made
Arrival: 2025-12-15 20:08:10
description
*Currently sold. It is a stereo power amplifier with a simple configuration. It seems that it was supposed to be used in pair with the ST-K808 tuner amplifier. If you've been looking for one, take this opportunity. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi) Maintenance information: 2025.12.13 Operation confirmed Accessories: none Main specifications: rated output 45W+45W 8Ω 20Hz-20kHz W430 × H76 × D280 mm 6.5 kg 

AMPZILLA 2AU.S.A

This item has been sold.You can't purchase now. 25-48084-23110-00
AMPZILLA 2A
Manufacture:GAS
Original price: JPY 499,000
Price: JPY 180,000 Sold Out
U.S.A 1976 made
Arrival: 2025-12-14 20:02:43
description
Maintained! The final model of Ampzilla. A representative American sound with strong, tight low frequencies! The dry, clean-sounding character is the perfect match for vintage speakers of yesteryear. This is a masterpiece machine that briskly drives famous speakers from JBL and Altec. Externally, there are scratches, dullness, and dirt on the panel. Serial 104146 (Yonejima Satoshi) Maintenance information: 2025.12.14 Maintained (left CH indicator on → control ICNG → DC check → LR both OK) 2025.11.30 maintained (first stage Tr, servo IC, etc. mounting socket replacement. Replace the output temperature switch. Replace each coupling C and bypass C in the driver board. Check all the others. Rubber foot replacement. Operation check) Accessories: No accessories Main specifications: 200W+200W (8Ω) perfect balance configuration W445 × H178 × D229 mm 22.7 kg

MA-7Japan

This item has been sold.You can't purchase now. 25-48317-25070-00
MA-7
Manufacture:marantz
Original price: JPY 300,000
Price: JPY 125,455(pair)Sold Out
Japan 1988 made
Shop: Osu shop
Arrival: 2025-12-09 19:57:19
description
Marantz mono power amplifiers are in stock for the first time in about 5 years! Maintained in 2019. Marantz mono power amplifier equipped with a MOSFET output stage. Surprisingly few in stock, this is a rare gem. The sound quality is thick, powerful, and light, and the sense of density and temperature in the middle sound is excellent, especially when driving in Class A, and a sense of volume remains even at low volume levels. There is a switch that reverses the phase of the output 180° without changing the speaker connection, and it is an amplifier that pays attention to details. Externally, there is a scratch on the side. Serial MZ01732030038, MZ01732030039 (Fujisawa Yukishi) Maintenance information: 2019.12.5 maintained (S/N38, 39 joint dismantling check. SP mute relay contact polishing. Driver board internal resistance replacement. Operation check OK. (Other C and R internal checks OK) Accessories: instruction manual Main specifications: pure A grade 30W/AB grade 120W switchable power consumption 150W dimensions W208 x H163 x D359 mm weight 10 kg

405UK

Ask 25-48257-24595-00
405
Manufacture:QUAD
Original price: JPY 198,000
Price: JPY 90,727
UK 1975 made
Shop: Osu shop
Arrival: 2025-12-11 20:41:32
description
The disposal price has been reduced. Member prices are not applicable. 2025/12/11 sales price 128,000 yen The input terminal, 4 capacitors, 7 resistors have been replaced, etc. Maintenance has been completed. 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. There are scratches on the top plate and sides, paint peeling, etc. (Oikawa Tetsuji) Maintenance Information: 2025.12.11 Maintained (INPUT pin jack replaced DIN connector without wiring → rewiring TN check in both channel boards OK gain setting C, DC cut C replacement, some resistors NG → replacement) Accessories: power cable Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg

MC7270U.S.A

This item has been sold.You can't purchase now. 25-47969-22035-00
MC7270
Manufacture:McIntosh
Original price: JPY 680,000
Price: JPY 270,909 Sold Out
U.S.A 1985 made
Arrival: 2025-11-21 19:57:31
description
Maintained! The Macintosh 7000 series stereo power amplifier was announced to coincide with the advent of the CD era. It seems to be the core model at the time, and it drives a large speaker with unique sweet and sticky sound quality, and the thick and gorgeous sound typical of the company is attractive. The exterior has a feeling of use such as dullness and small scratches. ※Although it is hard to see from the front, there is peeling on the left edge of the front panel (see bottom of the photo). Serial JFA8923 (Tomonori Asaine) Maintenance information: 2025.11.21 maintained (power SW replacement, power stage Tr check, each SW, VOL, connector cleaning, operation check) Accessories: copy of instruction manual Main specifications: 270W+270W power guard circuit equipped with frequency characteristics 20 to 20 kHz damping factor 30 W 410 x H195 x D400 mm 37.2 kg

TA-N86Japan

This item has been sold.You can't purchase now. 24-41621-00932-00
TA-N86
Manufacture:SONY
Original price: JPY 90,000
Price: JPY 98,182 Sold Out
Japan 1978 made
Shop: Osu shop
Arrival: 2025-12-05 20:12:14
description
The price has been drastically reduced. 2025/12/5 sales price 128,000 yen maintenance including replacement of 26 deteriorated electrolytic capacitors! This amplifier has a reputation for use in multiple systems. The original powerful sound, which has a wide range and is clear, has been revived. It is thin and can be used for a wide range of purposes, from sub to multi-use. There is a small dull wound (Sasaki Shota) Maintenance information: 2025.12.5 Maintained (Electrolytic capacitors, tantalum capacitors, semi-fixed resistors, and lamps will be replaced. Power switch installation correction. Transfer switch, relay disassembly contact cleaning. (We will clean the panel, rear terminals, and housing) Accessories: none Main specifications: 80W+80W (B grade) 18W+18W (A grade) DC amplifier configuration W480 x H80 x D380 mm 8.6 kg

TA-N86Japan

This item has been sold.You can't purchase now. 22-36607-45818-00
TA-N86
Manufacture:SONY
Original price: JPY 90,000
Price: JPY 98,182 Sold Out
Japan 1978 made
Shop: Osu shop
Arrival: 2025-12-05 20:12:11
description
The price has been drastically reduced. 2025/12/5 sales price 128,000 yen, maintenance including replacement of 27 deteriorated electrolytic capacitors! This amplifier has a reputation for use in multiple systems. The original powerful sound, which has a wide range and is clear, has been revived. It is thin and can be used for a wide range of purposes, from sub to multi-use. There is a small dull wound (Sasaki Shota) Maintenance information: 2025.12.5 Maintained (Electrolytic capacitors, tantalum capacitors, semi-fixed resistors, and lamps will be replaced. Transfer switch and relay disassemble and clean. (We will clean the panel, rear terminals, and housing) Accessories: none Main specifications: 80W+80W (B grade) 18W+18W (A grade) DC amplifier configuration W480 x H80 x D380 mm 8.6 kg

STEREO 120U.S.A

Ask 25-47120-15520-00
STEREO 120
Manufacture:DYNACO
Original price: JPY 94,000
Price: JPY 36,182
U.S.A
Arrival: 2025-08-01 19:54:12
description
The disposal price has been reduced. Member discounts are not applicable. 2025/8/1 sales price 59,800 yen ※A trance growl will occur, but this cannot be corrected. Maintenance completed in 2019. Dinaco's transistor stereo power amplifier was developed by applying technology obtained with tubular amplifiers to semiconductor circuits. It is a sound that allows you to broadly enjoy the atmosphere without requiring precise expression of sound. There is a feeling of use (Murakoshi Yoichi) Maintenance information: 2019.8.9 maintained (internal dismantling check, LCH power stage TR/constant voltage TR characteristics defective/circuit board coupling C interruption/capacity loss → replacement, operation check OK) Main specifications: 60W+60W W330 x H104 x D260 mm 8 kg

MC2500U.S.A

Ask 25-48033-22654-00
MC2500
Manufacture:McIntosh
Original price: JPY 1,180,000
Price: JPY 326,364
U.S.A 1980 made
Arrival: 2025-11-25 19:53:34
description
The price has been drastically reduced! 2025/11/25 sales price 398,000 yen Maintained! The flagship model of the Macintosh power amplifier, the black version. The heavyweight frame, fresh blue meter, and large speakers drive lightly, and the rich, rich tone are just perfect. The clarity of low frequency contours is the highest among all Mackins of all time. The exterior has age, dullness, and small scratches. Serial JCS5523 (Fujisawa Yukishi) Maintenance information: 2025.11.25 Maintained (input ATT, 10 electrolytic capacitors, lamps, ICs, and sockets replaced. Mode switch disassembly polishing cleaning. Card edge contact cleaning. Connector cleaning. Solder correction. Bias and offset checks. Output audio check) Accessories: copy of instruction manual, power cord Main specifications: 500W+500W (1000W when mono) equipped with power guard circuit W483 x D465 x H263 mm 60.3 kg

303UK

25-46780-13072-00
303
Manufacture:QUAD
Original price: JPY 110,000
Price: JPY 90,727
UK 1967 made
Arrival: 2025-09-22 20:12:03
description
The disposal price has been reduced! (Member discounts are not applicable) 2025/11/27 sales price 118,000 yen 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 are dullness, small scratches, etc. appropriate for the model year (Oikawa Tetsuji) Maintenance information: 2025.9.22 maintained (CA 4PIN conversion cable (1M) installation, input terminal solder repair, main amplifier part solder repair, internal inspection and cleaning, running test) Accessories: power cable, connection cable, copy of instruction manual Main specifications: 45W+45W W120×H159×D324mm 8.2 kg

303UK

Ask 25-48176-23952-00
303
Manufacture:QUAD
Original price: JPY 110,000
Price: JPY 90,727
UK 1967 made
Arrival: 2025-11-27 20:00:57
description
The price has been drastically reduced. 2025/11/27 Sales price 118,000 yen 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 51928 (Takasaki Atsushi) Maintenance information: 2025.11.26 Maintained (block condenser liquid leak → replaced with a replacement product because the original is not available, Lch board liquid leak scattering pattern leak → cleaning, resistance burn replacement. (Other C, R, TR check status OK, operation check) 2024.3.22 Maintained (internal all checks, Tr, C, R co-operation check*INPUT modification available, AC code created for cable creation) Accessories: power cord, instruction manual (copy) Main specifications: 45W+45W W120×H159×D324mm 8.2 kg

MC2500U.S.A

Ask 25-48033-22655-00
MC2500
Manufacture:McIntosh
Original price: JPY 1,180,000
Price: JPY 361,818
U.S.A 1980 made
Arrival: 2025-11-28 19:53:05
description
Maintained! The flagship model of the Macintosh power amplifier, the black version. The heavyweight frame, fresh blue meter, and large speakers drive lightly, and the rich, rich tone are just perfect. The clarity of low frequency contours is the highest among all Mackins of all time. The exterior has dirt scratches, etc. Serial JCS4855 (Tamura Eiji) Maintenance information: 2025.11.28 Maintained (cleaned due to power supply board pattern leak. Replace the input ATT, lamp, and ground spring. Mode switch disassembly polishing cleaning protective agent application. Card edge contact and connector cleaning. Solder correction. Bias and offset checks. I checked the output sound. (*Electrolytic capacitors have been replaced) Accessories: power cable Main specifications: 500W+500W (1000W when mono) equipped with power guard circuit W483 x D465 x H263 mm 60.3 kg

405UK

Ask 17-12670-67047-00
405
Manufacture:QUAD
Original price: JPY 198,000
Price: JPY 90,727
UK 1976 made
Arrival: 2025-11-19 19:54:52
description
The disposal price has been reduced! (Member discounts are not applicable) 2025/11/19 sales price 128,000 yen Maintained! RCA and VOL have been added, so it's easy to use. The exterior is painted black. 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 is dull and has small scratches over time. Serial 8508 (Yonejima Satoshi) Maintenance information: 2025.11.19 Maintained (internal all inspection → Lch power stage Tr, gain setting C, INPUT VOL replacement. DIN SP rewiring, first drive IC OP AMP replacement) Accessories: power cord Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg

405UK

Ask 15-88406-53658-00
405
Manufacture:QUAD
Original price: JPY 198,000
Price: JPY 90,727
UK 1975 made
Shop: Osu shop
Arrival: 2025-11-18 20:07:08
description
The disposal price has been reduced! Member prices are not applicable. 2025/11/18 Sales price 128,000 yen Maintained! Quad power amplifier Although it is a compact body, you can enjoy the sound with a thick core. In particular, it makes me listen to 70s analog sounds with a sense of dynamism. There is dullness, scratches, and paint peeling (Asaine Tomoho) Maintenance information: 2025.11.18 maintained (internal check pattern repair piece ch check) 2025.7.4 maintained (internal double channel dismantling TN check → OK. DC cut C, gain setting C, etc. exchange ~ operation check) Accessories: power cable, connection cable Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg

405UK

Ask 16-08449-23178-00
405
Manufacture:QUAD
Original price: JPY 198,000
Price: JPY 90,727
UK 1976 made
Arrival: 2025-11-18 20:07:08
description
The disposal price has been reduced! (Member prices are not applicable) 2025/11/18 sales price 128,000 yen Maintained! The QUAD405 is full of appeal and makes you listen to the whole picture of the music in a tasteful way. Along with feedforward operation, the high quality, which smoothly transitions to A class operation at low levels and B class operation when the level rises, is also worth listening to. There are scratches, scuffs, and dullness on the exterior. Serial 4546 (Jun Tamai) Maintenance information: 2025.10.12 Maintained (INPUT connector VOL lead resoldering process check) 2025.7.2 Maintained (internal all dismantling checks, Tr, C, R checks, operation checks, rubber, etc.) 2016.12.23 Maintained (Vol replacement, Rch power, Tr replacement, capacitor resistor replacement (both channels) operation check) Accessories: Connection cord, power cord, copy of instruction manual Main specifications: 100W+100W (8Ω) dimensions W341 x H115 x D195 mm weight 9 kg

405UK

Ask 25-47349-17334-00
405
Manufacture:QUAD
Original price: JPY 198,000
Price: JPY 90,727
UK 1975 made
Arrival: 2025-08-31 20:06:05
description
The disposal price has been reduced. Member discounts are not applicable. 2025/8/31 sales price 128,000 yen 2023/10 maintenance completed. 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, etc. (Kobayashi Hitoshi) Maintenance information: 2023.10.13 maintenance completed (internal parts dismantling check, power Tr, driver Tr, etc., etc. C, R, etc. can all be checked. Burn correction due to partial heat generation on both channel board patterns. The RCA terminal, input volume installation (expansion), Din terminal, SP terminal, and block capacitor have been replaced. (The input/output waveform was checked, left and right balance checked, load tests, and comprehensive operation tests were performed to confirm normal operation.) Accessories: 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

405UK

Ask 23-89023-06845-00
405
Manufacture:QUAD
Original price: JPY 198,000
Price: JPY 90,727
UK 1975 made
Arrival: 2025-11-08 19:52:53
description
The disposal price has been reduced. Member discounts are not applicable. 2025/11/8 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 57794 (Murakoshi Yoichi) Maintenance information: 2025.11.7 Maintained (fuse replaced. Internal transistors, capacitors, resistance values, input/output waveforms, left and right balance checks, load tests, and comprehensive operation tests. Load test (1kHz sine wave, at 8Ω load: 100W+100W), sound output test. Running test 10H) 2018.5.24 maintenance completed (internal dismantling all checks, half-short leak replacement between power stages Tr x 1E-C, replacement of servo drop resistance defects in both other driver boards, operation check) Accessories: power cord, instruction manual (copy) Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg

405UK

Ask 16-03836-78435-00
405
Manufacture:QUAD
Original price: JPY 198,000
Price: JPY 90,727
UK 1975 made
Shop: Osu shop
Arrival: 2025-07-12 20:16:22
description
The disposal price has been reduced. Member prices are not applicable. 2025/7/12 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. There is dullness and small scratches (Sasaki Shota) Maintenance information: 2025.7.12 Maintained (drive transistor (BD244 x 4), power transistor (MJ15024G x 1), and original differential op amp (TL071 x 2) parts were replaced. The connection cord and power cord have been attached. Input/output waveform confirmation, left and right sound pressure level checks, load tests, and comprehensive operation tests were performed to confirm normal operation) 2025.6.9 maintained (there is a pattern short in the board, poor output board mounting, capacitor deterioration, block C lead wire soldering, driver transistor deterioration, operation check) 2024.8.6 Maintained (all internal parts checked, LCH power stage TR x 1 half short NG replacement, DC cut C replacement within the board, replacement of bottom cover rubber foot defects, operation check) Accessories: copy of manual, power cable, connection cable Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg

405UK

Ask 25-46705-12407-00
405
Manufacture:QUAD
Original price: JPY 198,000
Price: JPY 90,727
UK 1975 made
Arrival: 2025-07-05 19:47:54
description
The disposal price has been reduced. Member discounts are not applicable. 2025/7/5 sales price 128,000 yen Maintenance has been completed, such as replacement of deteriorated capacitors and transistors. 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. Exterior, paint deterioration, dullness, rust, scuffs, etc. can be seen (Kobayashi Hitoshi) Maintenance information: 2025.7.5 maintenance completed (block C, VOL, rubber feet, power stage Tr, C and R replacement in the board. Input cable creation (DIN4P-RCA female) operation check) Accessories: instruction manual, power cable, connection cable Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg
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