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- description
- Maintained. Denon's mono power amplifier has an eye-catching robust design. In addition to the POA-8000's bass response and braking power, it claims to be an ultra-stable non-feedback amplifier to eliminate interference between channels. It plays a sound with high purity and thickness. The exterior has small scratches and a feeling of use such as dullness. Serial 7121100371/7121100380 (Matsumoto Tsuyoshi) Maintenance information: 2026.3.27 maintained (push switch disassembly cleaning voL contact correction speaker relay disassembly contact cleaning each board soldering correction idling adjustment exterior cleaning operation test) Accessories: power cord Main specifications: equipped with pre-out power-in terminals 60W+60W (8Ω) W458 x H110 x D429 mm 16 kg
- description
- Detailed maintenance has been carried out, such as 43 capacitors, 4 lamps, and 6 semi-fixed resistors, replaced, and disassembled and cleaned for each volume and switch. A powerful vintage amplifier that is clear and strong. With this brush-up, the sharpness of the stand up and the firmness of the sound have been clearly revived, and even the realistic sound with a piano touch can be heard, and unlike modern models, it clearly shows the expression and musical expression of the source. There are scars, dullness, etc. appropriate to the model year (Oikawa Tetsuji) Maintenance information: 2026.3.23 Maintained (power switch, 4 volumes replaced. Disassemble and clean the front transfer switch, rear transfer switch, and speaker output relay. Volume cleaning, electrolysis, tantalum capacitors, semi-fixed resistors, lamp replacement, panel, housing, RCA terminal cleaning, readjusted parts, aging test) Accessories: copy of instruction manual Main specifications: output 100W+100W (8Ω) SNR 115dB W436 x H151 x D370 mm 26 kg
- description
- 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. Externally, there is peeling on the front panel. Serial JGP 2021 (Fujisawa Yukishi) Maintenance information: 2026.2.6 maintained (panel disassembly meter part acrylic removal cleaning, replacement due to AC cord damage, lamp replacement , switch disassembly, polishing, and application of protective agents, repair damaged screw holes and screw replacement, foam rubber material replacement, volume and switch checks, and peeling correction around the letters are not possible. Bias and 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
- description
- The price has been drastically reduced! 2026/3/22 sales price 398,000 yen Ampzilla, a masterpiece by 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. Small scratches and dullness can be seen. Serial A2KJ1176, A2KJ1164 (Fujisawa Yukishi) Maintenance information: 2026.3.22 operation confirmed Accessories: No accessories Main specifications: 200W+200W (8Ω) input RCA/XLR switching W267 x H206 x D400 mm 23.8 kg
- description
- The disposal price has been reduced! (Member prices are not applicable) 2026/3/7 sales price 398,000 yen Maintained! A heavyweight power amplifier with a threshold. It has solid momentum and strength, and it drives well even large speakers. This is a car where you can enjoy the thickness, richness, and atmosphere unique to this age. On the exterior, bumps and scratches can be seen on the top plate. Serial 770101J (Tamura Eiji) Maintenance information: 2026.3.7 Maintained (power supply unit smoothing capacitor replacement. Control resistor replacement. Semi-fixed VR exchange. Acrylic board adhesion correction. Bias and offset checks. Output audio check. ※Since there is no mute mechanism, there is a slight popping sound when the power is turned on. (specification)) Accessories: No accessories Main specifications: effective output 200W+200W (20 to 20,000 Hz, 8 ohm, both channel drive) harmonic distortion ratio 0.1% (at rated output) mixed modulation distortion ratio 0.1% (at rated output) output bandwidth 20 to 20,000 Hz±0 dB (at rated output) frequency characteristics 2 to 200,000 Hz+0-3dB damping factor 1000 (20 Hz) 200 (20 kHz) residual noise 2 mV power consumption 300 W (when no signal) AC 105 V 50/60 Hz W483 x H230 x D427mm 41 kg (including packaging)
- description
- The price has been drastically reduced! 2026/3/19 sales price 198,000 yen Maintenance was completed in 2020/2. It is a power amplifier whose strength of 400W+400W can also be seen from the exterior. Enough power with a sense of extrusion that comes close to the front and the ease and carefree sound are attractive. There are threads and dullness on the exterior. Serial 002321 (Tamura Eiji) Maintenance information: 2020.2.22 maintained (according to the check, RCA operation failure, earth float → earth processing failure, power stage Tn x 1 characteristic failure, driver stage Tn characteristics poor (both channels), coupling and bypass C, etc. deterioration → replacement, meter lamp replacement, diode short present → replacement ~ operation check) Accessories: none Main specifications: 400W+400W Dimensions W483 x H178 x D400 mm Weight 26.4 kg
- description
- The disposal price has been reduced! Member prices are not applicable. 2026/3/22 sales price 498,000 yen new-generation LUXMAN A class power amplifier! It has sufficient driving power and range unique to Class A. It also has resolution and instantaneous power compatible with the latest speakers, and drives large speakers lightly. It is particularly compatible with recent European speakers. Small scratches and dullness can be seen. Serial M70300095B (Fujisawa Yukishi) Maintenance information: 2026.3.22 operation confirmed Accessories: instruction manual, power cord Main specifications: 60W+60W (8Ω) BLT240W (8Ω) W440 × H230 × D480 mm weight 47.0 kg
- description
- The disposal price has been reduced. Member discounts are not applicable. 2026/3/15 sales price 898,000 yen Maintenance completed in 2022/8. *Upgraded product starting at 20L. The front panel remains 20L. Genuine Harman product. It stands out uniquely with the good separation unique to mono and the excellent sense of shading of the sound, and it also drives high-end speakers and the like well. Also, it has a slightly sweet and comfortable sound similar to ML-2L, and it still makes music fans groan today. Exterior, dullness, stains, abrasions, scratches, burns, etc. can be seen (Kobayashi Hitoshi) Maintenance information: 2022.8.18 maintenance (replacement of deteriorated parts, other inspections, adjustments) 2020.12.25 maintained (32 capacitors, 6 resistors replaced. Resoldering of AP5/5.5 substrates (new solder after removal and cleaning of current solder). (Other inspections and adjustments) Accessories: copy of instruction manual, power cable, Remo pin, Remo short pin, Fisher output plug Main specifications: mono power amplifier effective output 100W (8Ω) input/unbalance (RCA) 1 system, balance (XLR) 1 system, 1 SP terminal system W483 ✕ H210 ✕ D560 mm weight 33 kg
- description
- It operates in triode class A with 2 hybrid power amplifier inputs (balanced/unbalanced), ECC88 for the initial stage, and a transistor for the output. It is extremely smooth and glossy, and has an attractive warm tone and sense of dynamism typical of Fidelity. Serial 041001 has small scratches and dullness on the exterior (Hiura Katsuji) Maintenance information: 2026.3.21 sound output confirmed Accessories: instruction manual power cable Main specifications: triode class A operation 100W+100W W480 x H185 x D365 mm 25.9 kg
- description
- It is a model that pursues performance by narrowing down functions and simplifying signal paths. It's a well-balanced, natural, ROTEL-like sound with no sense of exaggeration. They can handle a wide variety of music genres without excesses or deficiencies. The exterior of the serial 953-5401146 has small scratches and a dull feeling of use. There are some cracks on the SP terminal cover (Hiura Katsuji) Maintenance information: 2026.3.22 sound output confirmed Accessories: power cable Main specifications: output 200W+200W (8Ω) W440 x H139 x D365 mm weight 15.5 kg
- 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. Dullness and small scratches can be seen. (FUJISAWA KOSHI) Maintenance information: 2026.3.25 Maintained (internal all dismantled Tr/C check. Tr OK. Part of the C constant difference in the board → replacement. Meter lamp deteriorated, pin jack replaced. Internal dirt → cleaning. SP fuse holder ratters → adheres Operation check.) Accessories: No accessories Main specifications: 200W+200W (8Ω) perfect balance configuration W445 × H178 × D229 mm 22.7 kg
- description
- The price has been drastically reduced! 2026/3/12 sales price 448,000 yen 27 deteriorated parts, including capacitors, were replaced in 2021/10! A stereo power amplifier with a traditional dual mono configuration. The overwhelming driving power and precise sound are attractive. You can enjoy the strong driving power that allows even a 38cm woofer to brake well, and the hot sound unique to Levinson of this era. Genuine Harman There are small scratches and dullness over time. Serial 1047 (Yamato Yuki) Maintenance information: 2021.10.2 Maintained (deteriorated capacitors, resistors, POT replacement. (Inspection and adjustment) Accessories: Remo pin instruction manual copy power cable short plug Main specifications: stereo power amplifier, dual mono configuration, 200W+200W (8Ω), 800W (8Ω, when connected to a bridge), input impedance 50kΩ, W483 x H210 x D450mm, 40 kg
- description
- The price has been drastically reduced! 2026/3/14 sales price 398,000 yen Maintained in 2026/1! Mark Levinson mid-range power amplifier. 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. There are scratches and peeling marks on the top plate. Serial 2425 (Fujisawa Yukishi) Maintenance information: 2026.1.21 maintained (replacement of 4 transistors, 45 capacitors and other deteriorated parts, DC voltage, DC offset voltage, idling current, and other adjustments) 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
Manufacture:Fosi Audio
Price: JPY 3,636 Sold Out
- description
- Currently sold. The sound is clean and sharp, with high resolution typical of a Class D amplifier. Recommended for those considering a near field setting on a desktop or the like. The appearance is good with little feeling of use (Kobayashi Hitoshi) Maintenance information: 2026.3.15 Operation confirmed Accessories: AC adapter Main specifications: 50W+50W frequency characteristics 20Hz-20kHz W90 × H40 × D140 mm 0.5 kg (actual measurement)
- description
- Hi-Fi is in stock for the first time! A class A stereo power amplifier incorporating plenty of development results from the flagship model Grandioso M1X. Not only is it a warm and soft feeling common with Class A amplifiers, but it also reveals the position of each instrument in an orchestra with an overwhelming sense of transparency. Also, in terms of depiction power, I have the impression that the detailed breathing of vocals and the rubbing sound of stringed instruments come out very realistically. There are no visible scratches on the exterior, etc., and it is good with just the degree of dullness (Kobayashi Hitoshi) Maintenance information: 2026.3.21 Operation confirmed Accessories: instruction manual, power cable Main specifications: 30W+30W (8Ω) 60W+60W (4Ω) practical maximum output 120W+120W (8Ω when connected to BTL) frequency characteristics 5Hz to 100kHz (+0dB, -3dB, 8Ω) S/N ratio 102dB (IHF-A) total harmonic distortion ratio 0.007% (1kHz, 8Ω, 30W) damping factor 500 W445 × H191 × D444 mm 30.7 kg (actual measurement)
- description
- The price has been drastically reduced! 2026/3/21 sales price 198,000 yen It was maintained by the previous owner in 2023/4. A heavyweight power amplifier that is a sibling of the company's B-2301. A considerable amount of material was put in at the time, and it is a luxurious gem. The rugged design has an appealing bass that sits at the back, and goes well with jazz, rock, etc. The exterior has dullness and scratches. Serial 213030017 (Fujisawa Yukishi) Maintenance information: 2023.4.3 maintained (2 speaker relays replaced, 10 semi-fixed resistors replaced, 22 electrolytic capacitors replaced, 4 SP terminals replaced, 1 polarizing plate replaced, 6 lamps replaced, main amplifier internal parts replaced, and circuit soldering work carried out. Power transistor heat dissipation grease repainting work was carried out. Attenuator disassembly contact polishing was carried out. Polarizing plate and SP terminal replacement. Comprehensive adjustments implemented.) Accessories: No accessories Main specifications: 200W+200W input level left and right independent step method S/N120dB dimensions W474xH215xD505mm weight 35 kg
- description
- Maintenance completed in 2022. It is a pioneer power amplifier with high cost performance, such as using independent left and right power transformers. The sense of power above the specs and the straightforward, straight sound without habit are attractive. A feeling of use can be seen on the exterior, dullness, rust, scratches, etc. (Kobayashi Hitoshi) Maintenance information: 2022.2.1 maintenance completed (SP switch removed, sound wave cleaning, LR meter lamp replacement, output relay replacement, power amplifier solder repair, internal inspection and cleaning, meter level confirmation, operation inspection.) Accessories: copy of instruction manual Main specifications: 85W+85W (8Ω) size W480 x H142 x D390 mm weight 15.2 kg
- description
- The disposal price has been reduced! (Member prices are not applicable) 2026/2/8 sales price 178,000 yen Maintenance completed! This is a counterpoint solid state power amplifier. The warm, thick, and mild sounds are attractive. It has a good sound typical of the company, which has been cultivated with tubular and hybrid amplifiers. As for the exterior, you can see a feeling of use such as dullness over time. Serial 3S2062 (Yamato Yuki) Maintenance information: 2025.6.2 maintained (left ch output transistor, drive transistor, resistance fuse replacement bias adjustment 48H or higher running output sound check) 2025.4.9 maintained (right ch drive and pre-drive transistor, resistor, and DC fuse replacement bias adjustment output voice check) *The pop sound when the power is on/off is specified. Accessories: power cable Main specifications: 200W+200W (8Ω) maximum current supply capacity 170A size W483 × H184 × D470 mm 28 kg
- description
- * While arranging a genuine power cable (JPA-10000i), power reality of up to 960W was obtained instantaneously from 120W (8Ω), which pursues drivability for all speakers, and is compatible with pure A class operation of up to 6W with bias current settings. A masterpiece that combines rich musical expression with high power. Small scratches and dullness can be seen. Serial M60700192 (Fujisawa Yukishi) Maintenance information: 2026.3.22 operation confirmed Accessories: ※Power cord is being arranged (JPA-10000i) Main specifications: rated output 120W+120W (8Ω), 240W+240W (4Ω), 480W (8Ω) input/output unbalanced system in mono, 1 balanced system, 1 large speaker terminal system W440 x H190 x D427 mm 27.5 kg
- description
- Maintained including 13 transistors and 6 capacitor replacements! DC power amplifier with Class A operation in all stages. A sound that is both straightforward and straightforward, yet also has a delicate feel. It's a character with no quirks and is easy to match. There are small scratches and dullness overall (Oikawa Tetsuji) Maintenance information: 2026.3.15 Maintained (6 deteriorated transistors in the left and right main amplifier circuit boards, 2 capacitors, 6 adjustment volumes replaced. Replacement of defective relay contacts in the protection circuit 7 transistors and 6 capacitors in the same circuit. DC balance idling current adjustment. Power LED replacement. (Disassembled and cleaned all parts) Accessories: none Main specifications: 40W+40W (8Ω) measured output 60W+60W (8Ω) playback frequency band 20 to 20,000 Hz size W482 x H182 x D340 mm weight 18.5 kg
- description
- The price has been reduced! 2026/3/15 sales price 69,800 yen Maintained! JBL UREI professional power amplifier. Dynamic sound with clear contours and momentum. The driving power that makes it easy to drive even large speakers at a high volume is attractive. It can also be used as mono power by connecting to a bridge. Small scratches and paint peeling can be seen. Serial 12169 (Fujisawa Yukishi) Maintenance information: 2026.3.14 Operation confirmed (power switch, XLR terminal, and output relay replaced. Solder correction. Wire restyling. Input SW cleaning. Volume check, bias and offset check. Output audio check) Accessories: No accessories Main specifications: 150W+150W (8Ω) 300W+300W (4Ω) input 2 systems (phone/XLR) W483 x H180 x D260 mm approx. 20 kg
- description
- Maintenance has been completed with attention to details such as replacing 6 capacitors and 12 transistors, disassembling and polishing switches, etc. A power amplifier at the core of LUXMAN's ambitious laboratory reference series in the 70s. It is a model that made clear and powerful sound possible with a DC amplifier configuration that was advanced at the time. Serial F7100959 (Murakoshi Yoichi) Maintenance information: 2026.3.19 Maintained (switch disassembly contact polishing. Replace 6 deteriorated capacitors and 12 transistors in the tone control circuit. Replace 3 flat amp circuit capacitors and 6 transistors I/O pin jack polish (Add 1 top cover screw cap) Accessories: none Main specifications: continuous effective output 100W+100W (8Ω) damping factor 80 or more (8Ω) W442 × H146 × D400 mm 19.0 kg
- description
- The disposal price has been reduced! (Member prices are not applicable) 2026/3/9 sales price 118,000 yen Maintained in 2024/3! 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 (Kaneko Ryuichiro) 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 (English) Main specifications: 125W+125W (8Ω) W445 × H170 × D265 mm 14.8 kg
- description
- Maintained in 2025. Macintosh early solid state power amplifier. Comes with a precious wood case. The rich and powerful sound unique to vintage MacKins is full of appeal that is different from current models. When combined with the company's C28 and C26 preamps, you can enjoy the flavor unique to vintages that are even thicker and darker. Concurrent models. Serial AH8476 (Murakoshi Yoichi) Maintenance information: 2025.5.10 Maintained (input terminal replacement, input capacitor deterioration defect replacement, operation check, lamp OK. *The color of the input RCA terminal is gold. Internal capacitors, transistors, etc. have been replaced) 2025.1.9 maintained (lamp replacement, speaker switch replacement, pin jack cleaning, speaker terminal replacement, glass panel side rail screw correction installation) 2019.11.20 maintained (meter illumination lamp replacement, power stage Tr check, output board Tr, input board C replacement, speaker SW replacement, each SW · VOL cleaning, operation check) 2025.1.9 maintained (lamp replacement, speaker switch replacement, pin jack cleaning, speaker terminal replacement, glass panel side rail screw correction installation) Accessories: instruction manual (copy) Main specifications: output 105 W+105 W (4/6/8 ohms) LR volume control speaker switch with headphone terminal W440 x H225 x D390 mm approx. 35 kg
- description
- 43 capacitors, 6 semi-fixed resistors, 4 lamps, 2 relays have been replaced, and maintenance has been completed, such as disassembling and cleaning the various volumes and switches. The diamond called Yamaha FET shows off its excellent purity and transparency. With this brush-up, the sharpness of the stand up and the high level of transparency have been completely revived, and you can enjoy natural Yamaha sound without getting tired of listening. There are scratches, dullness, etc. on the top plate (Oikawa Tetsuji) Maintenance information: 2026.2.24 Maintained (left and right speaker output relays replaced, A/B changeover switch dismantling, cleaning, transistor magmentation removed. Electrolytic capacitors, semi-fixed resistors, lamp replacement. Input volume cleaning. Disassemble and clean the panel and rear changeover switch, clean the knobs, housing, and rear terminals. (Other parts readjusted, aging tests) Accessories: copy of instruction manual Main specifications: output 100W+100W (8Ω) SNR 115dB W436 x H151 x D370 mm 26 kg
- description
- Maintained! It's a thick amplifier that you can't imagine 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 urethane coating on the exterior has deteriorated, faded white, and some paint has peeled off (Wang Zhan) Maintenance information: 2026.2.18 Maintained (pin jack replacement, power stage TV check, deteriorated capacitor, resistor replacement, operation check, due to specifications, pop noise appears when the power is turned on) Accessories: copy of instruction manual, power cable. Main specifications: output 140W+140W (8Ω) frequency characteristics 20Hz to 20kHz (-0.5dB) 13Hz to 40kHz (-1.0dB) total harmonic distortion ratio 0.01% or less (up to 130W 100Hz/1kHz) input sensitivity 0.5V input impedance approx. 20kΩ crosstalk 100dB (100Hz) 85dB (1kHz) 65dB (10kHz) S/N ratio 105 dB speaker minimum load 4 Ω external Dimensions W321 x H134 x D240 mm Weight 12 kg
- description
- Maintained, including volume replacement. 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 is peeling on the front panel, small scratches on the side, and dullness on the top plate (Oikawa Tetsuji) Maintenance information: 2025.12.28 maintained (VOL characteristics poor in both L and RCH, → replacement meter with original vol, illumination lamp burned → replacement capacitor deterioration replacement power, meter SW internal warpage → reinforcement correction) Accessories: instruction manual Main specifications: 300W+300W (2/4/8Ω), 600W during MONO (2/4/8Ω) W445 x H196 x D420 mm 35 kg
- description
- Maintained! A classic British Quad stereo power amplifier. Small in size yet full torque. The sound, which is as deep as a tube amp, exudes an appeal that won't fade. You can see a feeling of use, such as appearance, dullness, small scratches, etc. Serial 15733 (Yamato Yuki) 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 the instruction manual, power cord, connection cord Main specifications: 45W+45W W120×H159×D324mm 8.2 kg
- description
- Maintained in April 2021! It comes with a variable gain VOL, making it easier to use. 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, scratches, etc. (Kobayashi Hitoshi) Maintenance information: 2026.1.10 operation confirmed 2021.4.30 maintenance completed (input/output panel replacement, RCA terminal volume installation, input/output waveform confirmation, left and right balance confirmation, comprehensive operation test) Accessories: instruction manual, power cord, connection cord Main specifications: 45W+45W W120×H159×D324mm 8.2 kg
- description
- Maintained! The output volume has been added to enable detailed gain control with QUAD33. 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
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Hi-Fi Do Record Shops Softs, Audio parts and Tubes can ship overseas.Ordinary,we use EMS but for large order,we use SAL or Surface.For Asia,it cost 1,200JPY/1LP,900JPY/1CD.Please check at the shipping cost table for more detail.
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