The disposal price has been reduced! (Member prices are not applicable) 2025/5/1 sales price 128,000 yen Input volume, RCA terminal processing, installation, etc. have been maintained! Although the Quad power amplifier has a compact body, the core is thick, and you can enjoy smooth sound. It really goes well with speakers made in England, and lets you listen to 70s analog sound with a sense of dynamism. There are exterior, feel of use depending on age, paint peeling, sticking marks, scuffs, and small scratches. Serial 2 2022 (Yamato Yuki)
Maintenance Information: 2025.1.24 Maintained (Driver Tr, IC, C replacement. Output board pattern, short correction) 2024.8.9 maintained (SP terminal replacement (original), other internal all checks, characteristic failure due to Rch power stage Tr temperature change → replacement, in-board gain setting C NG, SP limiter circuit C NG → replacement ~ operation check)
2015.8.25 Maintained (RCA terminals installed. IC, capacitor, resistor, input VR, fuse replacement)
Accessories: Power cable, copy of instruction manual
Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg
The disposal price has been reduced! (Member discounts are not applicable) 2025/4/16 sales price 99,800 yen Maintenance completed! A commercial amplifier with a strong power supply. The thick, rich, and sinking low frequency of 300W+300W has a texture unique to professional aircraft. The powerful driving force grips the woofer firmly. It can be said that it is the perfect amplifier for large aperture units. There are scratches, paint peeling, etc. on the entire exterior. Serial 05351 ※ There is a cooling fan operating noise due to commercial use (Satoshi Yonejima)
Maintenance information: 2025.4.16 Maintained (both power switches replaced. Clean the input switch and output relay. ATT check. Bias and offset checks. Output audio check. AC120V specification (It can be operated at AC100V, but the residual hum is slightly disadvantageous)
Accessories: No accessories
Main specifications: rated output 300W+300W (8Ω) frequency characteristics 20Hz to 20kHz dimensions W483 x H178 x D356 mm weight 28.6 kg
Comes 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. The exterior has small scratches and dullness, and a feeling of use can be seen. Serial A5Y351 (Tomonori Asaine)
Maintenance information: 2025.6.10 operation confirmed
Accessories: original box instruction manual power cord
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
*Currently sold. This is a 2ch/4ch compatible power amplifier. It can also be used as a simple multi-purpose amplifier for surround speakers. There is dullness, small scratches, dirt, etc. (Oikawa Tetsuji)
Maintenance information: 2025.6.14 Operation confirmed
Accessories: none
Main specifications: 43W+43W with 2 amps (6Ω) 22W+22W+22W with 4 amps (6Ω) W435 x H93 x D287 mm weight 5.0 kg
The disposal price has been reduced! Member prices are not applicable. 2025/6/4 sales price 178,000 yen NuPrime's compact power amplifier. Parallel imports. Although it is an affordable size, it has 150W high power. The range is wide, and the sound quality with a high SN-feel makes it easy to drive even medium speakers. The stylish design is also attractive. The exterior is dull. Serial 84076110072 (Yonejima Satoshi)
Maintenance information: 2025.6.4 operation confirmed
Accessories: connection cord original box
Main Specifications: Output: 150W x 2 W215 x H59 x D394 mm Weight 7 kg
The disposal price has been reduced (member prices are not applicable)! 2025/5/11 sales price 128,000 yen 2024/7 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. The exterior has a feeling of use such as dullness. Serial 46658 (Tomoho Asaine)
Maintenance information: 2024.7.30 Maintained (all internal inspection checks. Tn check OK, replace some resistors in the board. Gain setting C, DC cut C exchange. INPUT VOL CLEANING Operation check)
Accessories: connection cable, power cable
Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg
The price has been drastically reduced! 2025/6/3 sales price 398,000 yen Maintained! Mark Levinson mid-range power amplifier. Genuine Harman product. It is popular because it makes a lot of noise. Circuits for the left and right channels, including the power supply unit from the input terminal to the output terminal, are separated and configured independently. The driving power and subtlety that makes a large speaker play lightly, and the thick sound that feels good to listen to even in Madrigal Levinson are attractive. The exterior is dull and scratched on the top plate. Serial 2234 (Yonejima Satoshi)
Maintenance information: 2025.6.3 maintained (29 capacitors and others, replacement of deteriorated parts, DC voltage, DC offset voltage, idling current, and other adjustments)
Maintained by Harman on 2014.5.14 (capacitor and resistor replaced. (Readjustment and sound output test OK)
Accessories: instruction manual, power cord, balance short pin
Main specifications: 200W+200W (8Ω) 400W+400W (4Ω) 800W+800W (2Ω) bi-wire compatible input/RCA x 1 · XLR x 1 W446 x H262 x D479 mm 58 kg
The price has been reduced! 2025/6/11 sales price 99,800 yen with yuan 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. The exterior is slightly dull. Serial 4003404 (Yonejima Satoshi)
Maintenance information: 2025.6.11 operation confirmed
Accessories: instruction manual, power cord, original box
Main specifications: 120W (stereo), 290 W (bridge), input impedance, 47 kΩ, playback frequency band, 10 Hz to 50 kHz, W235 x H55 x D276 mm (including terminals and legs) 4.8 kg
Disposal price has been reduced (member prices are not applicable) 2025/5/5 sales price 118,000 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 exterior has a feeling of wear such as dullness and scratches over time. Serial 4180 (Yamato Yuki)
Maintenance information: 2024.3.7 maintained (single ch power stage transistor replacement driver transistor resistor replacement drive TR capacitor replacement contact polishing aging test)
Accessories: copy of instruction manual
Main specifications: 125W+125W (8Ω) W445 × H170 × D265 mm 14.8 kg
Maintained! Arrived for the first time in about 7 years. It is a power amplifier that remains in TRIO's history. The panel design makes you feel a sense of weight, and just like the impression you get from the housing, it makes you hear a loud sound. You can also feel the depth and breadth of the sound, making it a well-balanced sound. The exterior has chips, scratches, etc. Serial 060072 (Yonejima Satoshi)
Maintenance information: 2025.6.11 Maintained (output relay replaced. Replace meters and other lamps. Mutating circuit transistors and capacitors (2 TR, 5 capacitors) were replaced. Power amplifier capacitor replacement (6 pieces) switch disassembly and polishing (speaker level LR input selector) fuse replacement. (Internal inspection and cleaning, other switch cleaning, solder repair, running tests.)
Accessories: No accessories
Main specifications: 170W+170W (8 ohm continuous operation) input impedance 50 kΩ damping factor 40 rated load impedance 4 to 16 ohms frequency characteristics 20 Hz to 20000 Hz W440 × H200 × D360 mm 27 kg
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 scratches, dullness, and tape marks. Serial CS5116 (Tomoho Asaine)
Maintenance information: 2025.6.6 maintained (speaker terminal Lch replacement, poor pin jack contact → replacement, mode switch SW dismantling and cleaning, meter, display lamp deterioration replacement, heatsink fixing plate multiple cracks adhesive treatment, power stage Tr, driver board C, R, Tr, etc. check, operation check, internal and external cleaning)
Accessories: power cord instruction manual
Main specifications: 500W+500W (1000W when mono) equipped with power guard circuit W483 x D465 x H263 mm 60.3 kg
The disposal price has been reduced. Member discounts are not applicable. 2025/5/31 sales price 498,000 yen 2016 maintenance item. A dual mono power amplifier that inherits the design concept of the No. 330L series. From channel separation with a high degree of perfection, it creates an amount of information unique to mono, with depth and thickness. This model is highly regarded for its excellent braking feel and sound image reproduction. There are some small scratches on the exterior (Mizusaki Ryo)
Maintenance information: Maintained on 2016.7.20 (both channels are fully maintained. Replace 66 capacitors, transistor ICs, resistors, and deteriorated parts. Other inspections and adjustments)
Accessories: power cord
Main specifications: 125W+125W (8Ω) input 2 systems (RCA, XLR) W451 x H150 x D513 mm 25.5 kg
Price reduced 2025/6/11 Sales price 178,000 yen Maintenance including replacement of 18 capacitors and 20 resistors! An attractive A-class power amplifier with a powerful, thick sound. The sense of energy that makes even large speakers sound is a product close to the mid to low range, which is in contrast to modern models. It's unique to the heyday of audio with thickness, scale, and room. There are scratches, dullness, abrasions, etc. appropriate for the model year (Oikawa Tetsuji)
Maintenance information: 2025.6.5 maintained (volume, switch disassembly and cleaning. Relay contact disassembly and cleaning. Electrolytic capacitor, fuse resistor, meter lamp, power cord replacement. Replace the damaged part of the power switch. Transistors, magnetization removal. Soldering fixes for each board. Cleaning internal housings, panels, knobs, boards, and terminals. Bias and offset readjustment. aging test)
Accessories: copy of instruction manual
Main Specifications: Real Bias Circuit Class A Operation 250W+250W (8Ω) 300W+300W (6Ω) Dimensions W488 x H199 x D480 mm Weight 30 kg
The price has been reduced! 2025/6/10 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. The exterior has small scratches and dullness, and a feeling of use can be seen. Serial K4Y229 (Tomonori Asaine)
Maintenance information: 2025.6.10 operation confirmed
Accessories: instruction manual power cord
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
This is the disposal price (no membership discount) for unused, opened items. Comes with a 5-year manufacturer's warranty. Mark Levinson dual mono power amplifier, fourth in the No. 5000 series. Equipped with a Class AB amplifier module using a direct coupling circuit with a discrete configuration, it consists of 2 high-speed driver transistors operating in Class A and an output stage of 6 260V/15A output transistors (Oikawa Tetsuji)
Accessories: instruction manual, power cable, original box, gloves
Main specifications: Rated output: 135W+135W (8Ω), 270W+270W (4Ω), [bridge mono] 275W@ (8Ω), 550W (4Ω) W438 x H145 x D527mm 31.7 kg
Maintained! Genuine Electri. 100V specification. Macintosh's high-power amplifier with stereo output and 600W on one channel. Balanced inputs are also supported, and connections to high-end class balanced amplifiers are also being considered. It is characterized by a sound with plenty of room to resonate loudly rather than being as powerful as if power was pushed to the front. Small scratches and dullness can be seen. Serial JFS1035 (Fujisawa Yukishi)
Maintenance information: 2025.6.10 Maintained (meter lamp, 7 electrolytic capacitors, reed relays, semi-fixed VR, IC sockets, and PCB supporters replaced due to defects and deterioration. Mode and sensitivity switches are disassembled, polished and cleaned, and protective agents are applied. Missing screws added. Remove the broken screw and reinstall the handle. Solder correction. Connector cleaning. Bias and offset checks. I checked the output sound.)
Accessories: power cord
Main specifications: 600W+600W (stereo) 1200W (mono) W483 x H267 x D457 mm 59 kg
We've reduced the price! 2025/6/8 sales price 398,000 yen Jeff Roland's small monaural amplifier. A high performance mono power amplifier requiring a strong power supply from ICE POWER. The high degree of perfection that achieves both thickness and texture even though it is small, and the glossy tone unique to JEFF is still attractive enough. There are no noticeable scratches and it is in good condition. Serial MB0769/MB0770 (Eternity Mirai)
Maintenance information: 2025.6.8 operation confirmed
Accessories: Power cable instruction manual (copy)
Main specifications: 250W+250W (8Ω) W216×H65×D290 mm 6.2 kg
A power amplifier with a simple design that is easy to use. The good SN feel and delicate sound quality are compatible with a wide range of preamps. It is an amplifier with a sense of attention to detail, such as a warm-up meter that can check the heat-up state and a German WBT speaker terminal. The exterior has a feeling of use such as dullness. Serial MZ000026090076 (Tomonori Asaine)
Maintenance information: 2025.2.15 Operation confirmed
Accessories: instruction manual power cord
Main specifications: 60W+60W (8Ω) 80W+80W (6Ω) 100W+100W (4Ω) W458 x H110 x D407 mm 15.5 kg
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. You can see a feeling of use such as appearance, dullness, small scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2025.6.7 maintenance completed (dismantling check, constant voltage drive Tr/Rch power stage Tr co-exchange, DC cut C/gain setting C co-exchange, operation check, bias/medium point output adjustment)
Accessories: copy of instruction manual, power cord, connection cord
Main specifications: 45W+45W W120×H159×D324mm 8.2 kg
The disposal price has been reduced. Member prices are not applicable. 2025/5/22 sales price 220,000 yen Lamp, relay replacement, switch, volume cleaning, etc. have been maintained. Arrived for the first time in about 8 years. Macintosh 6ch power amplifier compatible with home THX. If connected to a bridge, it can be used with high power of 300 W/3 channels. The exterior has dents and dents in the upper left corner of the front (Oikawa Tetsuji)
Maintenance information: 2025.5.22 maintained (lamp, speaker relay defect replacement, SW, VOL cleaning, operation check)
Accessories: none
Main specifications: 100W x 6CH (8Ω) W445 x H181 x D508 mm 23.6 kg
Maintained! A classic British Quad stereo power amplifier. There is a sense of power beyond its size. The sound, which is as deep as a tube amp, exudes an appeal that won't fade. There are spots and small scratches on the exterior (Wang Zhan)
Maintenance information: 2025.5.28 Maintained (internal dismantling check, replacement of both power stage Tr channels. In-board gain setting C, DC cut capacitor replacement. Midpoint alignment, adjustment, operation test)
Accessories: power cable, copy of manual, connection cable
Main specifications: 45W+45W W120×H159×D324mm 8.2 kg
The disposal price has been reduced. Member discounts are not applicable. 2025/5/16 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 39513 (Takahashi Nobuyuki)
Maintenance information: 2025.5.16 maintained (rubber feet x 4 replacement speaker terminal internal damage/mounting fault/output board C defect, pattern failure → replacement pattern correction (terminal is for banana terminals only) power bullet TR/driver TR/IC/tantalum C deterioration replacement connector poor crimping/sound interruption → correction/vol cleaning)
Accessories: Power cable, copy of instruction manual
Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg
The disposal price has been reduced! (Member prices are not applicable) 2025/5/18 sales price 398,000 yen Maintained by Electri! Ampzilla, a masterpiece by the genius James Bongiorno, has been revived to the present day. While the overwhelming driving power and intuitive sound remain the same, the freshness of the sound has been improved with the circuit design cultivated through GAS/SUMO. It is recommended not only for large speakers such as JBL, but also for those who want to add a sense of dynamism to modern high-end speakers. On the exterior, the lettering has disappeared and there is oxidation on the panel. Also, the power plug has been replaced. Serial A2KJ1472, A2KJ1473 (Fujisawa Yukishi)
Maintenance information: 2025.5.18 manufacturer maintained (fuse replaced. Regarding pop noise when the power is turned on and off, although measures have been taken to reduce it, it appears somewhat, making it difficult to completely eliminate it due to the specifications of the device. (Replace the capacitor on the driver board and regulator board)
Accessories: No accessories
Main specifications: 200W+200W (8Ω) input RCA/XLR switching W267 x H206H x D400 mm 23.8 kg
The disposal price has been reduced (member price is not applicable) 2025/3/27 sales price 198,000 yen A total of 29 transistors and capacitors have been replaced, and refreshed and maintained with attention to details such as disassembly and cleaning of switches! The diamond called Rifu Yamaha FET shows off its excellent purity and transparency. With this brush-up, the sharpness of standing up and the firmness of the sound have been completely revived, and you can enjoy the Yamaha sound you are aiming for. You can see a feeling of use such as dullness and scratches on the exterior (Takahashi Nobuyuki)
Maintenance information: 2025.3.27 maintained (power supply SW disassembly cleaning, grease up front operation part push SW disassembly cleaning volume contact cleaning transistor migration occurrence point repair electrolytic capacitor replacement speaker relay disassembly, contact cleaning back slide SW disassembly cleaning power LED board back, protection board back, cushion replacement
Idling adjustment, DC balance adjustment, internal cleaning, AC cable cleaning, RCA terminal, 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
It has been refreshed and maintained with attention to detail, such as replacing 31 capacitors, disassembling and cleaning switches, etc. It is a diamond called Rifu Yamaha FET that shows off its excellent purity and transparency. With this brush-up, the sharpness of standing up and the firmness of the sound have been completely revived, and you can enjoy the Yamaha sound you are aiming for. On the exterior, you can see a feeling of use such as dullness and scratches. Serial 09687 (Takahashi Nobuyuki)
Maintenance information: 2025.5.16 maintained (front operation part push SW disassembly cleaning front operation part board/VOL board indirect point correction volume contact cleaning power supply SW disassembly cleaning/grease up transistor migration occurrence point repair electrolytic capacitor 20% capacity change parts replacement back slide SW disassembly contact cleaning power supply/protection LED board back cushion replacement AC Cable cleaning, RCA terminal/AC plug cleaning, exterior cleaning, idling adjustment, DC balance adjustment, inspection of each part)
Accessories: copy of instruction manual
Main specifications: output 100W+100W (8Ω) SNR 115dB W436 x H151 x D370 mm 26 kg
The disposal price has been reduced. Member discounts are not applicable. 2025/3/12 sales price 198,000 yen A total of 79 transistors and capacitors have been replaced, and refreshed and maintained with attention to detail, such as disassembly and cleaning of switches! The diamond called Yamaha FET shows off its excellent purity and transparency. With this brush-up, the sharpness of standing up and the firmness of the sound have been completely revived, 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: 2025.3.12 Maintained (internal wiring fixed. Sound output check) 2025.2.24 maintained (2SK76/2SJ26 replaced due to power FET short. Replace defective parts in other main amplifier circuits. Replace deteriorated transistors and capacitors in the meter circuit. ACOUTLET processed and installed a new one. Internal dismantling and cleaning adjustments. (Meter level adjustment)
Accessories: copy of instruction manual
Main specifications: output 100W+100W (8Ω) SNR 115dB W436 x H151 x D370 mm 26 kg
The price has been drastically reduced. 2025/2/6 sales price 198,000 yen Refreshment maintenance completed with attention to details such as volume, replacement of 28 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 standing up and the firmness of the sound have been completely revived, 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 unit 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, 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