A-20Japan

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A-20
Manufacture:Accuphase
Original price: JPY 320,000
Price: JPY 161,818 Sold Out
Power amplifiers (transister)
Japan 1995 made
Arrival: 2026-01-09 20:16:57
description
Accuphase pure Class A power amplifier. The balance is good even at low volume, and the sound like a vacuum tube amplifier is unique to pure A grade. The warm, rich tone is also a staple for the mid to high range of multiple amplifiers. On the exterior, there are some scratches on the front and abrasions on the top surface. Serial H5Y290 (Murakoshi Yoichi) Maintenance information: 2026.1.8 sound output confirmed Accessories: instruction manual, power cord (external product) Main specifications: pure A grade stereo amplifier, 20W+20W/8Ω, 2 input systems (1 balanced/unbalanced each), can be connected to a bridge, W475 x H170 x D426 mm, 22.6 kg

STASIS-2U.S.A

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STASIS-2
Manufacture:THRESHOLD
Original price: JPY 1,138,000
Price: JPY 152,727 Sold Out
Power amplifiers (transister)
U.S.A 1979 made
Arrival: 2026-01-07 20:04:44
description
The price has been drastically reduced! 2026/1/7 sales price 198,000 yen Maintained! A Threshold power amplifier that uses a Stasis circuit developed by Nelson Pass. It is a popular model that combines sufficient driving power to make even large speakers sound well, and good sound separation. Small scratches, dullness, and a feeling of use can be seen. Serial G8102284 (Fujisawa Yukishi) Maintenance information: 2026.1.7 Maintained (both channel driver circuit modified, constant changed to original. Some capacitors are defective, Lch power stage transistors have been replaced. Bias readjusted) Accessories: power cord Main specifications: rated output 200W+200W (20Hz to 20kHz, 8Ω) W480 x H192 x D480 mm 37 kg 

DreadnaughtU.S.A

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Dreadnaught
Manufacture:THETA
Original price: JPY 1,390,000
Price: JPY 361,818 Sold Out
Power amplifiers (transister)
U.S.A 1999 made
Arrival: 2026-01-10 20:08:59
description
Maintained! This is Seta's 4-channel power amplifier, Dreadnought. Four mono modules are built into the interior, making it ideal for combination with multiple amplifiers and bi-wired speakers (2 or more pre-out outputs are required). The powerful, fresh, and clear sound is attractive. The driving power is also excellent. You can see a feeling of use such as appearance, dullness, small scratches, etc. (Kobayashi Hitoshi) Maintenance information: 2026.1.10 maintained (in logic circuit, IC replacement, electrolytic capacitor, ceramic capacitor replacement, wire replacement, pattern cleaning, solder correction, connector cleaning, wire pinch correction, bias and offset check, output sound check) Accessories: power cable Main specifications: 200W (8Ω) mono module x 5 W448 x H214 x D597 mm approx. 46 kg

MODEL 102U.S.A

This item has been sold.You can't purchase now. 26-89026-00295-00
MODEL 102
Manufacture:Jeff Rowland
Original price: JPY 290,000
Price: JPY 134,545 Sold Out
Power amplifiers (transister)
U.S.A 2006 made
Arrival: 2026-01-06 19:57:22
description
The price has been drastically reduced! 2026/1/8 sales price 178,000 yen Maintained! JEFF ROWLAND's compact power amplifier. Although it is small, the driving power is high enough with a 100W output. In combination with CAPRI, it shows maximum tonal appeal, and it is a powerful machine that is compatible with various pri even when used alone. The front lettering is worn out and part of it has disappeared. Serial SD0156 (Fujisawa Yukishi) Maintenance information: 2025.12.22 maintenance completed (adhesive fixed due to adhesive peeling off the LED lamp panel. (Input/output operation check, internal visual inspection) Accessories: power cord Main specifications: 100W+100W (8Ω) frequency characteristics 54-65kHz damping factor 1000 twin mono configuration machined aluminum block W348 x H68.5 x D190 mm 3.4 kg

M-8fJapan

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M-8f
Manufacture:LUXMAN
Original price: JPY 650,000
Price: JPY 290,909 Sold Out
Power amplifiers (transister)
Japan 2001 made
Arrival: 2026-01-02 19:16:02
description
The price has been drastically reduced! 2026/1/2 sales price 357,000 yen A Luxman rare amplifier that combines power and quality. The mid to high range, which has traditional sweet and glossy vacuum tube-like colors, and the low range with strong driving power is also attractive. The ability to effortlessly sound a large speaker is not unique. There are scratches and dullness on the exterior. Serial M20610111A (Fujisawa Yukishi) Maintenance information: 2026.1.2 operation confirmed Accessories: instruction manual, power cord (general purpose) Main specifications: 250W+250W (8Ω) 380W+380W (4Ω) mono 750W (8Ω) in mono (8Ω) W467 x H212 x D482 mm weight 40.5 kg

928 Mono power amplifierDenmark

This item has been sold.You can't purchase now. 25-48486-26439-00
928 Mono power amplifier
Manufacture:PRIMARE
Original price: JPY 1,200,000
Price: JPY 243,636(pair)Sold Out
Power amplifiers (transister)
Denmark 1986 made
Arrival: 2025-12-24 20:06:52
description
The disposal price has been reduced. Member prices are not applicable. 2025.12.24 Sales price 348,000 yen A mono power amplifier of the 928 series, a masterpiece created by Danish industrial designer Bo Christensen. The delicate tone, which contains rich luster, is still compatible with Scandinavian speakers and vividly reproduces strings and vocals. Overall there is dullness and dirt (Ryo Mizusaki) Maintenance information: 2025.12.24 Operation confirmed Accessories: instruction manual, power cable Main specifications: 100W+100W (8Ω) measured size W200 x H310 x D220 (mm) measured weight 15.5 kg

MX-1Japan

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MX-1
Manufacture:YAMAHA
Original price: JPY 100,000
Price: JPY 45,273 Sold Out
Power amplifiers (transister)
Japan 1994 made
Arrival: 2026-01-07 19:58:28
description
Yamaha's thin, heavyweight stereo power amplifier. A Yamaha sound that sounds cool while feeling a sense of power. The bass has more damping than it looks, and it's powerful. The simple and clean design is also attractive. In addition to dullness and scattering, white paint can be seen adhering to the power cord. Serial No. 16942XZ (Fujisawa Yukishi) Maintenance information: 2026.1.7 operation confirmed Accessories: power cord Main specifications: 460W+460W (4Ω) 200W+200W (8Ω) W438 ✕ H116 ✕ D486mm 24.0 kg

M-8fJapan

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M-8f
Manufacture:LUXMAN
Original price: JPY 650,000
Price: JPY 290,909 Sold Out
Power amplifiers (transister)
Japan 2001 made
Arrival: 2026-01-02 19:16:04
description
The price has been drastically reduced! 2026/1/2 sales price 357,000 yen A Luxman rare amplifier that combines power and quality. The mid to high range, which has traditional sweet and glossy vacuum tube-like colors, and the low range with strong driving power is also attractive. The ability to effortlessly sound a large speaker is not unique. There are scratches and scratches on the exterior. Serial M20110064 (Fujisawa Yukishi) Maintenance information: 2026.1.2 operation confirmed Accessories: instruction manual, power cord (general purpose) Main specifications: 250W+250W (8Ω) 380W+380W (4Ω) mono 750W (8Ω) in mono (8Ω) W467 x H212 x D482 mm weight 40.5 kg

DA-1

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DA-1
Manufacture:S.M.S.L
Price: JPY 2,727 Sold Out
Power amplifiers (transister)
Shop: Osu shop
Arrival: 2026-01-06 19:51:16
description
*Currently sold. small power amplifier. Suitable for desktop audio etc. (Oikawa Tetsuji) Maintenance information: 2026.1.6 operation confirmed Accessories: power adapter Main specifications: 65W+65W (4Ω) W96 × H30.5 × D102 mm 230 g

D-60U.S.A

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D-60
Manufacture:CROWN
Original price: JPY 173,000
Price: JPY 18,000 Sold Out
Power amplifiers (transister)
U.S.A 1976 made
Shop: Osu shop
Arrival: 2026-01-06 19:50:17
description
※Since the power lamp is out, it is cheap and is currently sold. A popular thin professional power amplifier. High-speed, sharp sound unique to professional use. There are scratches and dirt on the exterior as a whole (Oikawa Tetsuji) Maintenance information: 2026.1.6 operation confirmed Accessories: none Main specifications: 120V specification, input terminal, standard jack type output, 30W+30W, size W432xH44xD223mm, weight 4.5 kg

No.23.5LU.S.A

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No.23.5L
Manufacture:Mark Levinson
Original price: JPY 1,450,000
Price: JPY 452,727 Sold Out
Power amplifiers (transister)
U.S.A 1991 made
Arrival: 2026-01-05 20:04:17
description
Maintenance has been completed, such as replacing 13 capacitors! Mark Levinson's most popular masterpiece amplifier. Compared to No. 23, which is tight and has a slightly slender impression, I feel the thickness and power of the mid to low range. Hats off to driving a 38cm woofer effortlessly. Dullness and small scratches can be seen. Serial 6943 (Fujisawa Yukishi) Maintenance information: 2025.9.22 maintenance completed (replacement of deteriorated parts, DC voltage, DC offset voltage, idling current, and other adjustments) Accessories: instruction manual, power cable, balance short pin Main specifications: Dual monaural configuration, stereo amplifier, rated output 200W+200W (8Ω), frequency characteristics, 4 to 140000 Hz, SNR, 104 dB, input impedance 50 kΩ, W483 x H210 x D450 mm, 40 kg

1701U.S.A

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1701
Manufacture:BOSE
Original price: JPY 30,000
Price: JPY 9,091 Sold Out
Power amplifiers (transister)
U.S.A 1983 made
Arrival: 2026-01-05 20:01:02
description
*Currently sold. There is a slight gap in volume. The perfect power amplifier for the company's “101 MM” speaker. Although it is small, it also has a solid output, and a bookshelf sized speaker can drive well enough. A high output mono amplifier can also be converted to a changeover switch. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi) Maintenance information: 2025.12.27 Operation confirmed (there is a slight gap in volume) Accessories: none Main specifications: output 20W+20W (4Ω) 40W (4Ω, MONO) input RCA (for 5V high level/150mV for low level, 1 system each) speaker output 1 system (MONO output switchable) DV6V power output terminal equipment (MAX 200mA) W218 x H60 x D137 mm weight 2.6 kg

PA01Japan

This item has been sold.You can't purchase now. 25-48519-26732-00
PA01
Manufacture:marantz
Original price: JPY 150,000
Price: JPY 63,455 Sold Out
Power amplifiers (transister)
Japan 2002 made
Arrival: 2026-01-04 19:58:24
description
A monitor main amplifier that realizes wide bandwidth. A powerful machine that has overwhelming driving power, and its low range extrusion and tightness far exceeds the price. It is compact and has an excellent balance of 100W+100W (8Ω) power and an excellent sense of balance even for home use. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi) Maintenance information: 2025.1.3 operation confirmed Accessories: power cable Main specifications: 100W+100W (8Ω) 160W+160W (4Ω) 320W (BTL.MONO · 8Ω) LINE 1 · 2 · 3 (Unbalanced) XLR (Balanced Stereo) XLR MONO (BTL) W435 × H116 × D414 mm 11.8 kg

B-2103 MOS VINTAGEJapan

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B-2103 MOS VINTAGE
Manufacture:SANSUI
Original price: JPY 360,000
Price: JPY 180,000 Sold Out
Power amplifiers (transister)
Japan 1993 made
Arrival: 2026-01-02 19:15:35
description
Maintained in November 2015! Sansui's famous machine equipped with MOS FET. The precious champagne gold design is also simple yet impressive. Everything has a high degree of perfection, and in addition to conventional sounds with a sense of power, it also plays female vocals with a glossy tone. On the exterior, there are bumps, line scratches, and oxidation on the back. Serial 604085886 (Fujisawa Yukishi) Maintenance information: 2015.11.20 Maintained (INPUT selector switch disassembly cleaning. Relay replacement. protector transistor replacement. Power amplifier board, power supply board, solder correction. Overall adjustments. Operation check) Accessories: No accessories Main specifications: execution output 150W+150W (6Ω) 110W+110W (8Ω) MOS-FET push-pull damping factor 200 (8Ω) W450 × H173 × D477mm 35 kg

PA3S

This item has been sold.You can't purchase now. 25-48499-26510-00
PA3S
Manufacture:TOPPING
Price: JPY 7,273 Sold Out
Power amplifiers (transister)
Arrival: 2025-12-30 19:27:52
description
※Since it is cheap, it will be handed over as is. A small digital amplifier with toppings. The desktop size allows you to enjoy it without worrying about the installation location. Although it is small, it also has driving power, and it sounds well even with low efficiency units. The exterior is dull. Serial 2503123075 (Jun Tamai) Maintenance information: 2025.12.28 sound output confirmed Accessories: AC adapter Main specifications: 80W+80W (4Ω) W120 ✕ H40 ✕ D168mm weight 548g

P-4200Japan

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P-4200
Manufacture:Accuphase
Original price: JPY 490,000
Price: JPY 343,636 Sold Out
Power amplifiers (transister)
Japan 2013 made
Shop: Osu shop
Arrival: 2025-12-21 20:13:13
description
The price has been reduced! 2025/12/21 sales price 398,000 yen Maintained by the manufacturer! Comes with original box This is a full change model that enhances the degree of perfection of all P-4100 circuits. The latest instrumentation amplifier system is used for the overall configuration, and it is equipped with a mode changeover switch that allows easy bi-amp or bridge connections, improving convenience. The sound of the traditional 4000 series, which has a wide range and high transparency, has been refined. It is generally in good condition. Serial D5Y422 (Yamato Yuki) Maintenance information: 2025.12.21 maintained (front panel internal indicator, glass cleaning idling adjustment, input/output check OK, safety check/pressure resistance check OK) Accessories: original box instruction manual power cable Main specifications: rated output 90W+90W (8Ω) 180W+180W (4Ω) load impedance 2 to 16Ω (in stereo) input RCA1 system, XLR1 system speaker output 2 systems W465 x H190 x D427 mm 28.9 kg

MC2500U.S.A

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MC2500
Manufacture:McIntosh
Original price: JPY 1,180,000
Price: JPY 326,364 Sold Out
Power amplifiers (transister)
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

sa4.0BJapan

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sa4.0B
Manufacture:SOULNOTE
Original price: JPY 150,000
Price: JPY 58,909 Sold Out
Power amplifiers (transister)
Japan 2011 made
Arrival: 2025-12-26 20:09:35
description
The price has been reduced. 2025/12/26 sales price 69,800 yen SA3.0B power amplifier version. The analog/digital hybrid configuration remains the same, the volume and selector have been abolished, and the mission as a speaker driver has been further specialized. There are small scratches on the exterior (Hiura Katsuji) Maintenance information: 2025.12.22 sound output confirmed Accessories: power cable Main specifications: rated output 75W x 2 (8Ω) 115W x 2 (4Ω) 230W (8Ω BTL) size W420 mm x H98 mm x D214 mm weight 7 kg

STEREO 120U.S.A

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STEREO 120
Manufacture:DYNACO
Original price: JPY 94,000
Price: JPY 34,364 Sold Out
Power amplifiers (transister)
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

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MC2500
Manufacture:McIntosh
Original price: JPY 1,180,000
Price: JPY 310,000 Sold Out
Power amplifiers (transister)
U.S.A 1980 made
Arrival: 2025-12-21 20:09:59
description
The price has been drastically reduced! 2025/12/21 sales price 398,000 yen silver type. It is a model that can be said to be the flagship of Macintosh. The heavyweight frame, the refreshing blue meter, and the braking power to drive lightly even the large speakers, and the rich, rich tone are just perfect! It's exhilarating to drive the woofer briskly. On the exterior, scratches and a feeling of use can be seen on the top plate. Serial CS2131 (Fujisawa Yukishi) Maintenance information: 2022.1.22 maintained (power stage Tr check, Tr, C, gain VOL galley in driver board, meter display lamp, C replacement in power supply board. MODE selector dismantling contact cleaning. Resolder and clean the connector pattern. Operation check) Accessories: power cord Main specifications: 500W+500W (1000W when mono) equipped with power guard circuit W483 x D465 x H263 mm 60.3 kg

AX-501-SPJapan

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AX-501-SP
Manufacture:TEAC
Price: JPY 40,909 Sold Out
Power amplifiers (transister)
Japan 2015 made
Shop: Osu shop
Arrival: 2025-12-27 20:18:54
description
Maintained by TEAC ※Banana plugs are out of stock. AX-501-SP is a special packaged version model compatible with AX-501 banana plugs. A premain amplifier with a fully balanced configuration and a high-output Class-D amplifier, and equipped with an XLR balanced input. With fully balanced transmission and ABLETEC Class D amplifiers, you can enjoy clear and supple sound quality. The mechanical design with an eye-catching classical analog meter is also excellent. There is a scratch on the top plate (Oikawa Tetsuji) Maintenance information: 2025.12.27 The manufacturer has maintained (the meter has been replaced by ASSY. Other inspections, operation tests for each part) Accessories: instruction manual, power cable, remote control, original box Main specifications: maximum output 88W+88W (4Ω, 1kHz, JEITA) 55W+55W (8Ω, 1kHz, JEITA) rated output 70W+70W (4Ω, 1kHz, JEITA) 45W+45W (8Ω, 1kHz, JEITA) W290 × H81.2 × D264 mm weight 4.0 kg

Duet 350U.S.A

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Duet 350
Manufacture:Cello
Original price: JPY 1,600,000
Price: JPY 634,545 Sold Out
Power amplifiers (transister)
U.S.A 1991 made
Shop: Osu shop
Arrival: 2025-12-25 11:25:10
description
Maintained in May 2025. A popular classic cello power amplifier. The subtlety within the overwhelming thickness of the sound. You can only enjoy it with DUET. It shows movement as if the sound is alive. I definitely recommend this one to anyone interested in high-end audio. There are no noticeable scratches on the exterior (Oikawa Tetsuji) Maintenance information: 2025.5.22 maintained (replacement of all liquid leaks and deteriorated capacitors in the amplifier section and power supply unit, AC filter capacitor deterioration replacement, muting relay due to poor contact, bias and DC offset readjusted, running test) Accessories: instruction manual, power cable, Fisher XLR connection cable Main specifications: 350W+350W W485×H315×D596mm 44.5 kg

B-2Japan

This item has been sold.You can't purchase now. 22-34115-27462-00
B-2
Manufacture:YAMAHA
Original price: JPY 200,000
Price: JPY 143,636 Sold Out
Power amplifiers (transister)
Japan 1976 made
Shop: Osu shop
Arrival: 2025-12-18 16:26:25
description
The disposal price has been reduced. Member prices are not applicable. 2025/12/18 Sales price 198,000 yen Refreshment maintenance completed with attention to details such as volume, replacement of 33 electrolytic capacitors, switch disassembly and cleaning, etc. The diamond called Yamaha FET shows off its excellent purity and transparency. With this brush-up, the sharpness of the stand up and the firmness of the sound have been fully restored, and you can enjoy the supreme Yamaha sound. You can see a feeling of use such as appearance, dullness, scratches, etc. (Kobayashi Hitoshi) Maintenance information: 2025.2.4 maintained (power supply SW disassembly cleaning, grease up. Front control part push SW disassembly cleaning. Volume exchange. Fixed the place where transistor migration occurred. Replace 28 parts with 20% capacity change in electrolytic capacitors. Speaker relay disassembly, contact cleaning. Rear slide switch disassembly and cleaning. Replace the deterioration of the cushions on the back of the power LED board and the back of the protection board. idling adjustment. DC balance adjustment Internal cleaning. AC cable cleaning. RCA terminal and AC plug cleaning. (Exterior cleaning) Accessories: copy of instruction manual Main specifications: output 100W+100W (8Ω) SNR 115dB W436 x H151 x D370 mm 26 kg

MODEL 102U.S.A

This item has been sold.You can't purchase now. 25-48435-26051-00
MODEL 102
Manufacture:Jeff Rowland
Original price: JPY 290,000
Price: JPY 152,727 Sold Out
Power amplifiers (transister)
U.S.A 2006 made
Arrival: 2025-12-22 19:54:46
description
The price has been reduced! 2025/12/22 sales price 178,000 yen Maintained! JEFF ROWLAND's compact power amplifier. Although it is small, the driving power is high enough with a 100W output. In combination with CAPRI, it shows maximum tonal appeal, and it is a powerful machine that is compatible with various pri even when used alone. The front lettering is worn out and part of it has disappeared. Serial SD0156 (Fujisawa Yukishi) Maintenance information: 2025.12.22 maintenance completed (adhesive fixed due to adhesive peeling off the LED lamp panel. Input/output operation check, internal visual inspection.) Accessories: power cord Main specifications: 100W+100W (8Ω) frequency characteristics 54-65kHz damping factor 1000 twin mono configuration machined aluminum block W348 x H68.5 x D190 mm 3.4 kg

TA-N86Japan

This item has been sold.You can't purchase now. 22-35058-34120-00
TA-N86
Manufacture:SONY
Original price: JPY 90,000
Price: JPY 116,364 Sold Out
Power amplifiers (transister)
Japan 1978 made
Shop: Osu shop
Arrival: 2025-12-24 20:07:25
description
Maintenance has been completed, such as replacing 33 capacitors and disassembling and cleaning switches! 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. The exterior has line scratches and stains on the top plate (Ryo Mizusaki) Maintenance Information: 2025.12.24 Maintained (Electrolytic Capacitors, Tantalum Capacitors, Semi-fixed Resistors, Lamps, Cushions Replaced. Disassemble and clean the slide switch. Clean the housing, panel, and rear terminals. (Each part has been readjusted) Accessories: copy of instruction manual Main specifications: 80W+80W (B grade) 18W+18W (A grade) DC amplifier configuration W480 x H80 x D380 mm 8.6 kg

Mimesis 28MESwitzerland

This item has been sold.You can't purchase now. 25-48191-24103-00
Mimesis 28ME
Manufacture:GOLDMUND
Original price: JPY 1,480,000
Price: JPY 634,545 Sold Out
Power amplifiers (transister)
Switzerland 2002 made
Shop: Osu shop
Arrival: 2025-12-21 14:49:03
description
Arrived after a long time! Maintained! This is a Millennium Evolution model with digital characters flowing on the front panel. A genuine Stellar product. This is a rare power amplifier that combines high performance with beautiful sound, and musicality can also be felt in the high resolution power unique to high-end models. There is a slight dullness on the emblem. Serial 30706366 (Yasuhito Koshihama) Maintenance information: 2025.12.21 Maintained (replace 2 LR output relays that are causing contact deterioration. Since there is rattling inside the black box, the unit was tightened and tightened to the chassis. After the repair, operation and various characteristics were confirmed, running tests, and interior and exterior cleaning were carried out. Gain: 30.25db (L/R) Output: 36.0VRMS/8Ω/1 kHz (L/R) ・Frequency Characteristics: 20Hz ±0db ・( L/R) 20kHz ±0db (L/R) ・Distortion Ratio (1kHz/10W): 0l 0215% (L/R) Residual Noise: 0.25mV (Lch) 0.27mV (Rch) ・DC Offset Output-1.40mV (Lch) +1.31mV (Rch) Accessories: power cable Main specifications: 200W+200W (2 to 8 ohms) maximum 500W W440 x H173 x D410 mm 40 kg

WP-1100AJapan

This item has been sold.You can't purchase now. 25-48403-25764-00
WP-1100A
Manufacture:RAMSA
Original price: JPY 118,000
Price: JPY 9,091 Sold Out
Power amplifiers (transister)
Japan
Shop: Osu shop
Arrival: 2025-12-21 20:05:42
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. The speaker cover is missing on the exterior. There is a feeling of use such as line damage and footprints on the top plate (Ryo Mizusaki) Maintenance information: 2025.12.21 operation 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-1100AJapan

This item has been sold.You can't purchase now. 25-48403-25765-00
WP-1100A
Manufacture:RAMSA
Original price: JPY 118,000
Price: JPY 8,182 Sold Out
Power amplifiers (transister)
Japan
Shop: Osu shop
Arrival: 2025-12-21 20:05:38
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. The exterior has multiple line scratches on the top plate (Mizusaki Ryo) Maintenance information: 2025.12.21 operation 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-H062Japan

This item has been sold.You can't purchase now. 25-48403-25766-00
WP-H062
Manufacture:RAMSA
Price: JPY 7,273 Sold Out
Power amplifiers (transister)
Japan
Shop: Osu shop
Arrival: 2025-12-21 20:05:35
description
※There are no operation confirmation issues, but since it is for business use, it will be handed over as is without warranty. High sound quality is achieved by not having an output transformer. Equipped with a high-pass filter switch, it reduces distorted sound when the bass is output too much. The exterior has footprints on the top plate, and there is a feeling of use such as small scratches and dullness overall (Mizusaki Ryo) Maintenance information: 2025.12.21 operation confirmed Accessories: none Main specifications: rated output 60W+60W W480 x H88 x D417 mm weight 11 kg

SRP-P2070Japan

This item has been sold.You can't purchase now. 25-48402-25754-00
SRP-P2070
Manufacture:SONY
Original price: JPY 90,000
Price: JPY 6,364 Sold Out
Power amplifiers (transister)
Japan
Shop: Osu shop
Arrival: 2025-12-21 20:05:27
description
Currently sold. Sony commercial 1U size power amplifier. You can enjoy powerful sound at a low price. There is a line scratch on the top plate (Sasaki Shota) Maintenance information: 2025.12.21 sound output operation confirmed Accessories: power cable Main specifications: 50W+50W (8Ω) 70W+70W (4Ω) W430 × H59 × D380 mm
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