Maintenance completed, including replacement of 18 diodes, 6 lamps, and 2 relays! Sansui's separate power amplifier with excellent low frequency volume and driving power. It is a masterpiece created by putting in the highest quantity of materials at the time. It has a dynamic low range that cannot be heard with modern amplifiers, and it can drive JBL's 4343 class speakers and small, low efficiency speakers with plenty of time. You can see a feeling of use, such as appearance, dullness, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2026.2.28 maintenance completed (bar graph meter polarizer replacement, meter lamp replacement, speaker relay replacement, drive board fixed current diode, zener diode, diode replacement, input changeover switch, LEVEL switch disassembly contact polishing)
Accessories: instruction manual (copy)
Main specifications: digital meter with balanced input effective output 300W+300W (8Ω) 880W+880W (2Ω) W474 x H215 x D498 mm 36 kg
The price has been drastically reduced! 2026/2/24 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. As for the exterior, there is a feeling of use such as small scratches and dullness on the top of the front panel (Takahashi Nobuyuki)
Maintenance information: 2026.2.24 Operation confirmed
Accessories: Power cable, copy of instruction manual
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
The price has been drastically reduced! 2026/2/23 sales price 148,000 yen with yuan box! A discrete twin-mono structure using “A-WRAT,” which aims to increase the bandwidth of the playback frequency. It is a performance that combines transparency and strength, and is the driving force of modern ONKYO. BTL connections between 2 identical devices are also supported. The exterior has a feeling of use such as dullness (Tomoho Asaine)
Maintenance information: 2026.2.23 Operation confirmed
Accessories: instruction manual, original box, power cord*general-purpose product
Main specifications: rated output 2ch stereo 80W+80W (8Ω) 150W+150W (4Ω) BTL mono 180W (8Ω) 220W (6Ω) overall distortion ratio 0.02% S/N ratio 110dB dimensions W435 x H187.5 x D432.5 mm weight 23.5 kg
A simple small personal amplifier that uses a 15W+15W digital amplifier, and can be easily connected to a PC, media player, etc. to a passive speaker to make sound. It is convenient because it is small and easy to use. You can see a feeling of use such as appearance, dullness, small scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2026.2.21 Operation confirmed
Accessories: instruction manual, power cable, connection cable, original box (no internal frame)
Main specifications: 15W+15W compatible SP impedance 4Ω to 8Ω Input terminals: stereo mini jack, RCA pin jack (stereo mini jack is preferred for input. Simultaneous input of both inputs is not possible) Power source DC15V (dedicated AC adapter included) Power consumption approx. 45W W110 x H30 x D75mm (including protrusions) Body mass 250g
The disposal price has been reduced. Member prices are not applicable. 2026/2/12 sales price 248,000 yen Millennium Evolution (ME) version. A powerful amplifier from the SR series that combines the clarity and power of sound images. Although it has a compact housing, the output is 150W, making it possible to drive with plenty of room. The exterior is in good condition with no conspicuous scratches (Mizusaki Ryo)
Maintenance information: 2026.2.12 Operation confirmed
Accessories: instruction manual, power cable
Main specifications: 150W+150W (2 to 8 ohms) dimensions W440 x H75 x D335 mm weight 10 kg
A simple small personal amplifier that uses a 15W+15W digital amplifier, and can be easily connected to a PC, media player, etc. to a passive speaker to make sound. It is convenient because it is small and easy to use. The appearance is good with little feeling of use (Kobayashi Hitoshi)
Maintenance information: 2026.2.21 Operation confirmed
Accessories: instruction manual, power cable, connection cable, original box
Main specifications: 15W+15W compatible SP impedance 4Ω to 8Ω Input terminals: stereo mini jack, RCA pin jack (stereo mini jack is preferred for input. Simultaneous input of both inputs is not possible) Power source DC15V (dedicated AC adapter included) Power consumption approx. 45W W110 x H30 x D75mm (including protrusions) Body mass 250g
Currently sold. FOSI AUDIO digital power amplifier with volume It uses a TI TPA3255 Class D power amplifier chip and is small yet boasts a large output of 300W x 2. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2026.1.25 Operation confirmed
Accessories: power cable
Main specifications: W166 x H35 x D105 mm 1.14 kg
The disposal price has been reduced. Member discounts are not applicable. 2026/2/19 sales price 298,000 yen with original box! 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. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2026.2.18 Operation confirmed
Accessories: instruction manual, power cable, original box
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
Arrived for the first time in 3 years! An asymmetric Class A mono power amplifier created by Nelson Pass, known as the designer of Threshold. Genuine Electri It easily drives the 38cm JBL with a rich sense of elasticity that can only be described as expected. It is also recommended for those using 4344 etc. There are no noticeable scratches on the exterior. Serial 04663, 04679 (Fujisawa Yukishi)
Maintenance information: 2026.2.24 Operation confirmed
Accessories: power cord
Main specifications: output 75W (8Ω) 150W (4Ω) 250W (2Ω) power consumption 300W external dimensions W305 x H267 x D305 mm weight 32.0 kg
The price has been drastically reduced! 2026/2/20 sales price 729,000 yen stereo version of the M-6000 mono power amplifier. Power amplifier with 8 power MOS FETs parallel push-pull drive. The speaker sounds so lightly that it doesn't make you aware of the word driving force, and it has a fidelity that conveys the texture of the sound in the music source without leaving any residue. As for the exterior, there is some discoloration on the fins. Serial J4Y336 (Fujisawa Yukishi)
Maintenance information: 2026.2.20 Operation confirmed
Accessories: instruction manual, power cord, original box
Main specifications: 700W/1Ω 440W/2Ω 220W/4Ω 110W/8Ω frequency characteristics 20 to 20,000 Hz (at rated output) W465 × H221 × D499 mm 42.1 kg
Maintained in 2016, including replacing the windshield panel with a brand new one. Late wide panels. Macintosh's first power amplifier with a balanced circuit configuration. Resolution and transparency have been increased while keeping the traditional rich tone of McKinn intact. The blue meter, which can be said to be synonymous, is alive and well, and it's visually pleasing. Dullness and a feeling of use can be seen. Serial JGP2960 (Fujisawa Yukishi)
Maintenance information: 2026.2.2 operation confirmed. 2016.8.10 Maintained (glass panel, panel bottom rail replacement. C, R, etc. check, lamp status OK. Each SW and VOL cleaning. Operation check)
Accessories: instruction manual
Main specifications: 300W+300W (2/4/8Ω), 600W during MONO (2/4/8Ω) W445 x H196 x D420 mm 35 kg
This is a compact power amplifier that allows you to enjoy the lax sound of recent years. Although it is entry class, the low frequency resolution and sharpness are qualities unique to modern models. It is a power amplifier with a high CP that shines. The one with volume is also convenient. Serial M51100569 (Hiura Katsuji)
Maintenance information: 2026.2.19 sound output confirmed
Accessories: instruction manual, power cable, original box
Main specifications: output 25W+25W (8Ω) 70W (when 8Ω/BTL mono) 2 system input (LINE/BALANCE) W364 x H81 x D297 mm 7 kg
Comes with original box. This is a middle class power amplifier. It has a glossy mid-high range and a lot of information, making it suitable not only for pure audio, but also for playing separate AV systems. It is also recommended for those considering upgrading from premain to separate. There is a small dull wound (Sasaki Shota)
Maintenance information: 2026.2.21 operation confirmed
Accessories: manual, power cable, original box
Main specifications: 140W+140W (8Ω) dimensions W440 x H126 x D352 mm weight 10.8 kg
Maintained! AccuPhase 70's vintage stereo power amplifier is now in stock. A/B class switching and a completely independent left and right power transformer are used to suppress mutual interference and achieve clean sound. Like the Accuphase from the 70s, it combines cleanliness and strength, and it is also a sound maker leading to the P-500 reference power amplifier that followed. Dullness, there are threads (Daiki Goto)
Maintenance information: 2026.2.14 maintained (medium output transistor semi-fixed VR electrolytic capacitor film capacitor XLR input terminal due to poor resistance and deterioration, each replacement pattern and solder correction input ATT disassembly and cleaning output element heat dissipation grease replacement SW mechanism and card edge contact cleaning screw, 4 additional clamping legs installed* bias and offset check, adjustment output sound was checked. *Please switch the A Class/AB Class changeover switch while the power is off. *XLR inputs are ② HOT unbalanced ① and ③ are GND)
Accessories: copy of the manual
Main specifications: A/B grade switchable type A grade 50W+50W B grade 200W+200W dimensions W445 x H160 x D455 mm weight 31.2 kg
The disposal price has been reduced! (Member prices are not applicable) 2026/1/19 sales price 498,000 yen Maintenance including replacement of 58 deteriorated capacitors! High-end model of the No. 330 series. Sound quality full of powerful driving power and a fresh sense of energy. The 38cm woofer drives exactly, and the center of gravity drops rapidly to the lowest range. As for the exterior, there are threads and small scratches on the top plate. Serial 2365 (Fujisawa Yukishi)
Maintenance information: 2026.1.19 Maintained (58 deteriorated capacitors, 2 resistors replaced. (DC voltage/DC offset voltage/idling current/other adjustments and inspections carried out)
Accessories: balance short pin, copy of instruction manual
Main specifications: effective output 300W x 2 (8Ω) /600W x 2 (4Ω) input RCA1 system/XLR1 system SP terminal 1 system W446 x H262 x D479 mm 64 kg
The price has been drastically reduced! 2025/12/13 sales price 398,000 yen Maintained! The balance between thickness and sharpness of the sound is good, and the sound 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
※There is no problem with operation, but it is currently sold as it is a commercial device. The sound is strong and full of horsepower, making it easy to drive even large speakers. It goes great with jazz and rock. There are dents, line marks, etc. on the top plate (Oikawa Tetsuji)
Maintenance information: 2026.2.18 Operation confirmed
Accessories: none
Main specifications: input XLR/PHONE with air cooling fan 100Wx2 (8Ω) /170Wx2 (4Ω) /200Wx2 (2Ω) 400Wx1 (bridge 4Ω) W482mm × H107mm × D380mm 14 kg
※For business use, it is being handed over as is. It is inexpensive because there is a slight gap near CH A VOL0. This is an ACCUPHASE commercial power amplifier. Unlike consumer ACCUPAHSE, it has horsepower and a gutsy sound with instantaneous power. You can enjoy the dynamic feeling unique to professional use. Dullness and scarring (Oikawa Tetsuji)
Maintenance information: 2026.2.18 Operation confirmed
Accessories: none
Main specifications: 250W+250W (8Ω) BTL 500W air cooling fan system professional accuphase W483 x H190 x D433 mm 27.3 kg
※For business use, it is being handed over as is. CH A is inexpensive because it is slightly thin. This is an ACCUPHASE commercial power amplifier. Unlike consumer ACCUPAHSE, it has horsepower and a gutsy sound with instantaneous power. You can enjoy the dynamic feeling unique to professional use. You may be slightly concerned about the sound of the cooling fan, but it is a specification (Sasaki Shota)
Maintenance information: 2026.2.17 Operation confirmed
Accessories: none
Main specifications: 250W+250W (8Ω) BTL 500W air cooling fan system professional accuphase W483 x H190 x D433 mm 27.3 kg
※For business use, it is being handed over as is. The fan is slightly loud, so it's cheap. This is an ACCUPHASE commercial power amplifier. Unlike consumer ACCUPAHSE, it has horsepower and a gutsy sound with instantaneous power. You can enjoy the dynamic feeling unique to professional use. There is a noticeable scratch on the top plate (Sasaki Shota)
Maintenance information: 2026.2.17 Operation confirmed
Accessories: none
Main specifications: 250W+250W (8Ω) BTL 500W air cooling fan system professional accuphase W483 x H190 x D433 mm 27.3 kg
The disposal price has been reduced. Member discounts are not applicable. 2026/1/12 sales price 59,800 yen ※For business use, it will be handed over as is. Yamaha PA stereo power amplifier. The sound with excellent durability and no peculiarity is popular. You can see the exterior, dullness, curved rear fittings, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2026.1.9 sound output confirmed
Accessories: copy of instruction manual
Main specifications: 450W+450W (8Ω) 600W+600W (4Ω) 120W (BTL) damping factor 200 W 480 x H103.5 x D455 mm 16 kg
※There is no problem with operation, but it is currently sold as it is a commercial device. The sound is strong and full of horsepower, making it easy to drive even large speakers. It goes great with jazz and rock. There is dullness and friction overall, and there are dents etc. on the top plate (Oikawa Tetsuji)
Maintenance information: 2026.2.18 Operation confirmed
Accessories: none
Main specifications: input XLR/PHONE with air cooling fan 100Wx2 (8Ω) /170Wx2 (4Ω) /200Wx2 (2Ω) 400Wx1 (bridge 4Ω) W482mm × H107mm × D380mm 14 kg
※For business use, it is being handed over as is. This is an ACCUPHASE commercial power amplifier. Unlike consumer ACCUPAHSE, it has horsepower and a gutsy sound with instantaneous power. You can enjoy the dynamic feeling unique to professional use. You may be concerned about the sound of the cooling fan, but this is a specification. There are footprints and line marks on the top plate (Sasaki Shota)
Maintenance information: 2026.2.17 Operation confirmed
Accessories: none
Main specifications: 250W+250W (8Ω) BTL 500W air cooling fan system professional accuphase W483 x H190 x D433 mm 27.3 kg
Maintenance has been completed, including replacement of 21 volumes, 3 lamps, 4 capacitors, and 1 transistor. A masterpiece power amplifier with an all-FET circuit configuration. The size of the sound stage and the quick attack and the way the penetrating sound disappears are excellent. The hairline finish on the front panel and the LED switch with an impressive orange light are also attractive. There are scars and dullness overall (Oikawa Tetsuji)
Maintenance information: 2026.2.15 Maintained (display lamp replaced. Input volume exchange. Replace deteriorated capacitors and transistors in the left and right pre-drive circuits. (All DC adjustments, idling current adjustments, power supply voltage adjustments, volume replacement)
Accessories: instruction manual
Main specifications: rated output 240W+240W (8Ω) 350W+350W (4Ω) frequency characteristics 10Hz-100kHz total harmonic distortion ratio 0.003% or less (10Hz-20kHz) 0.007% or less (10Hz-50kHz) 0.01% or less (100kHz) mixed modulation distortion ratio 0.002% or less S/N ratio 123dB or more damping factor 200 (8Ω, 20kHz) input sensitivity 1V/25kΩ channel separation 100dB (1kHz) 95dB (20kHz) filter -6dB/oct FC = 6.4 Hz power supply AC 100V 50/60 Hz power consumption 560 W external dimensions W435 x H182.7 x D361.5 mm weight approx. 20.9 kg
※For business use, it is being handed over as is. CH A is inexpensive because it is slightly thin. This is an ACCUPHASE commercial power amplifier. Unlike consumer ACCUPAHSE, it has horsepower and a gutsy sound with instantaneous power. You can enjoy the dynamic feeling unique to professional use. You may be concerned about the sound of the cooling fan, but this is a specification. The female terminal of BALOUT is firm (Sasaki Shota)
Maintenance information: 2026.2.17 Operation confirmed
Accessories: none
Main specifications: 250W+250W (8Ω) BTL 500W air cooling fan system professional accuphase W483 x H190 x D433 mm 27.3 kg
※For business use, it is being handed over as is. This is an ACCUPHASE commercial power amplifier. Unlike consumer ACCUPAHSE, it has horsepower and a gutsy sound with instantaneous power. You can enjoy the dynamic feeling unique to professional use. You may be concerned about the sound of the cooling fan, but this is a specification. There is a scratch on the top plate (Oikawa Tetsuji)
Maintenance information: 2026.2.18 Operation confirmed
Accessories: none
Main specifications: 250W+250W (8Ω) BTL 500W air cooling fan system professional accuphase W483 x H190 x D433 mm 27.3 kg
The price has been reduced! 2026/2/8 sales price 89,800 yen including replacement of 24 deteriorated capacitors, maintenance completed! A stereo power amplifier equipped with a 4-stage output impedance switch. The natural sound quality and soft extrusion feel are easy to handle, and go well with analog sound sources and female vocals. It has a meter and is interesting to look at. There is some chassis distortion on the right end of the back of the main body, as well as scratches and paint removal appropriate to the model year. Serial C41225A026 (Fujisawa Yukishi)
Maintenance information: 2026.2.8 Maintained (main volume dismantled and cleaned. Replace 24 electrolytic capacitors in the power supply, amplifier, and other circuit parts. Disassemble and clean the meter range and out impedance switch. Solder repair. Output relay replacement. Replace the fuse. (Interior and exterior inspection and cleaning, operation confirmation.)
Accessories: No accessories
Main specifications: 82W+82W (8Ω) W450 x H173 x D380 mm 15 kg
Currently sold. An ultra-compact power amplifier that is no different from an AC adapter. There is 1 input system, but since it has a volume, it seems that it can also be used as a simple pre-main. There is dullness and a feeling of use throughout (Murakoshi Yoichi)
Maintenance information: 2025.12.23 sound output confirmed
Accessories: AC adapter, power cable
Main specifications: W95 x H32 x D148 mm 0.38 kg (actual measurement only for the main unit)
※There are slight air bubbles on the front panel. Maintained! Late wide panels. Macintosh's first power amplifier with a balanced circuit configuration. Resolution and transparency have been increased while keeping the traditional rich tone of McKinn intact. The blue meter, which can be said to be synonymous, is alive and well, and it's visually pleasing. There are scratches on the exterior. Genuine Electri. Serial JGP2268 (Tamura Eiji)
Maintenance information: 2026.2.15 Maintained (lamp replacement. VR disassembly and cleaning. Mode switch disassembly, polishing, cleaning, and protective agent application. Meter acrylic removal and cleaning Replace deteriorated urethane foam tape. The large peeling on the right side of the panel has been corrected, but the area around the characters etc. cannot be corrected. Bias adjustment offset check. Output audio check)
Accessories: No accessories
Main specifications: 300W+300W (2/4/8Ω), 600W during MONO (2/4/8Ω) W445 x H196 x D420 mm 35 kg
*Currently sold. A mono power amplifier with A/AB class switchable. 110V specification. Details are unknown. How about an introduction to separate amplifiers or mono amplifiers? There is not a single screw on the top plate. There are no noticeable scratches on the exterior (Oikawa Tetsuji)
Maintenance information: 2026.2.15 Operation confirmed
Accessories: power cable
Main specifications: W250 x H242 x H420 mm 12.5 kg