Maintained! A compact power amplifier where you can feel the strength of the USA Marantz era. The energetic sound is sharp and goes great with jazz, soul, rock, etc. There is a feeling of use appropriate for the model year, such as rust, small scratches, etc. (Oikawa Tetsuji)
Maintenance information: 2024.11.20 Maintained (meter lamp out → lamp change replacement, operation check)
2024.8.24 Maintained (meter lamp replacement, etc., internal dismantling check, poor Lch power stage Tr characteristics, bypass C in both CH boards, replacement operation check for C, etc. in relay circuits)
Accessories: copy of instruction manual
Main specifications: 80W+80W (8Ω) damping factor 30 (8Ω) power meter (sensitivity can be switched in 3 levels) mounted dimensions W358 x H120 x D273 mm weight 11 kg
Maintained! A pure Class A power amplifier featuring a plump, warm tone typical of Luxman. It has both softness and strength, and you can enjoy thick sound quality in the mid to low range. Mono drive with BTL connection is also possible. The exterior is dull. Serial W30811307 (Yonejima Satoshi)
Maintenance information: 2024.11.20 Maintained (dismantling the ATT rotary switch, upper contact cleaning, contact polishing, and oxidation prevention treatment. Soldering fixes for all substrates. DC offset and idle current adjustment)
Accessories: No accessories
Main specifications: stereo output 55 W+55 W (8 ohms) pure A grade operation, mono output, 220 W (balanced input), frequency characteristics, 5 Hz to 300 kHz, direct reading type level indicator, W444 x H211 x D417 mm, 22 kg
※There are cracks in the cabinet, so it is inexpensive. Maintained! A pure Class A power amplifier featuring a plump, warm tone typical of Luxman. It has both softness and strength, and you can enjoy thick sound quality in the mid to low range. Mono drive with BTL connection is also possible. On the exterior, there is a crack in the decorative top plate. Serial W10410447 (Yonejima Satoshi)
Maintenance information: 2024.11.20 Maintained (after disassembling the rotary switch, cleaning and polishing the contacts, and anti-oxidation treatment. Soldering fixes for all substrates. AC cord replacement. DC balance and idle current adjustment)
Accessories: No accessories
Main specifications: stereo output 55 W+55 W (8 ohms) pure A grade operation, mono output, 220 W (balanced input), frequency characteristics, 5 Hz to 300 kHz, direct reading type level indicator, W444 x H211 x D417 mm, 22 kg
The disposal price has been reduced. Member prices are not applicable. 2024/11/15 sales price 648,000 yen pure A grade stereo power amplifier. Precise sound particles overlap over and over to create a thick sound. It is an amplifier where you can catch a glimpse of the essence of Accuphase, which is close to the core of music by thoroughly refining physical characteristics. Not only is the sense of power and powerful bass, but the supple texture and glossy mid to high range are still attractive enough. There is a thread on the steering wheel and a small scratch on the front corner (Sasaki Shota)
Maintenance information: 2024.11.15 Operation confirmed
Accessories: manual, power cable, original box
Main specifications: A grade 60W+60W (8 ohms) dimensions W465 x H238 x D545 mm weight 45.1 kg
The flagship model at the time was beautifully revived by replacing 11 transistors and 13 capacitors, and polishing the contacts at each part! The sound quality is thick with mid-range tension, making it an easy to hear amplifier. There is a feeling of use on the exterior, such as dullness and small scratches, etc., serial TG1000555 (Asaine Tomoho)
Maintenance information: 2024.11.12 maintained (filter circuit transistor, capacitor deterioration replacement, power amplifier circuit, transistor, capacitor deterioration replacement, other INPUT LEVEL, SPEAKER selector rotation SW decomposition, polishing cleaning, INPUT switch, low filter lever SW disassembly, polishing cleaning, and other sound output confirmation tests. The INPUT LEVEL is best used at 1V or 2V when connected to a preamp with 8 transistors on the protection board and 3 replacement capacitors (supplementary). (Compared to SP B terminals A and C, they are slightly concave, but this is because the mounting plate deteriorates over time and is deformed, so I will leave it as it is without any problems with use)
Accessories: none
Main specifications: rated output 85W+85W (8Ω) output bandwidth 5Hz-50kHz W422xH172xD288mm 15.1kg
The disposal price has been reduced. Member price 25,000 yen 2024/2/3 sales price 30,000 yen ※There are no operation confirmation issues, but since it is for business use, it will be handed over as is without warranty. It is an attractive amplifier with a maximum output of 100W during 4-channel operation, and the strength unique to commercial use. There is a feeling of wear such as scratches and dullness on the exterior as a whole (Ryo Mizusaki)
Maintenance information: 2024.2.3 sound output confirmed
Accessories: none
Main specifications: 80 W x 4 (8 Ω continuous output) 100 W x 4 (4 Ω continuous output) 200 W (BTL 8 Ω continuous output) W480 x H88 x D417 mm weight 12.5 kg
*Currently sold. A digital power amplifier IC (TPA3118) is placed on each left and right channels, and the separation is increased by an internal configuration with 2 mono amplifiers in parallel. Recommended for those looking for this size. The appearance is good with little feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.11.10 Operation confirmed
Accessories: instruction manual, power cord, original box
Main specifications: Rated output: 30W x 2
Compatible impedance 4 ohm to 16 ohm connection terminal analog input (RCA), speaker output (banana plug compatible) power supply DC 12 to 24 V power supply capacity 2 A or more (4 A or more recommended) power connector DC jack outer diameter 5.5 mm inner diameter 2.5 mm (center plus specification) W98 x H33 x D123 mm 345 g
The disposal price has been reduced. Member discounts are not applicable. 2024/11/1 sales price 898,000 yen TAD full-body power amplifier. Anyway, it's a wonderful design that has been carefully selected for sound output. Each amplifier is a BTL (balanced amplifier) system in which two amplifiers are connected in balance, and an amplifier circuit with L/R completely independent from input to output stage is used. A high-purity amplification stage combining an analog power supply circuit and a D-class output stage has been realized. The power supply circuit, transformer, etc. are also L/R independent, and are designed in perfect symmetry. It is recommended for those who use speakers that are difficult to sound. There is no noticeable damage to the exterior (Murakoshi Yoichi)
Maintenance information: 2024.11.1 sound output confirmed
Accessories: power cord, instruction manual (copy)
Main specifications: 500W+500W (4Ω) power consumption 250W, 440x170x467 (mm), 43kg
This overhauled product has been carefully repaired by cleaning out the interior, 21 capacitors, and even polishing the switch contacts! 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. Dullness over time, there are small scars (Oikawa Tetsuji)
Maintenance information: 2024.11.17 Maintained (PUSH switch disassembly cleaning, VOL contact cleaning. Electrolytic capacitor 20% capacity change parts replacement. Speaker relay disassembly, contact cleaning. After disassembling and cleaning the power switch, grease up. Replace the deterioration of the cushions on the back of the power LED board and the back of the protection board. Idling, DC balance adjustment Internal cleaning. AC cable cleaning RCA terminal, AC plug, SP terminal cleaning)
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 reduced! 2024/10/31 sales price 19800 yen*For professional use, we will sell it as is. 120V specification A high power amplifier boasting an output of 525W+525W. It is an amplifier with excellent driving power and good cost performance. Please note that the input is XLR. ※There is a pop noise when the power is turned on and off. Peels and abrasions are scattered on the exterior. Also, be aware that the power cable is short. Serial 050892-34 (Fujisawa Yukishi)
Maintenance information: 2024.10.29 Operation confirmed (operation confirmed at 100V)
Accessories: none
Main specifications: 525W+525W (8Ω) 850W+850W (4Ω) W483 × H133 × D305 mm 20.0 kg
Macintosh's heavy high power amplifier. Unlike the rough McKinn sound of the past, it was transformed into a wide and clear sound. Of course, it also has a rich thickness in the mid to low frequencies, making it an attractive modern McKinn sound. There is some dullness and dirt on the exterior. Serial XA1463 (Fujisawa Yukishi)
Maintenance information: 2024.11.15 Operation confirmed
Accessories: instruction manual, power cord
Main specifications: output stereo 250W+250W (2/4/8Ω) Mono Parallel 500W (1/2/4Ω) Mono Bridge 500W (4/8/16Ω) size W445 x H240 x D376mm (knob included) weight 43.7 kg
The price has been reduced! 2024/11/14 sales price 118,000 yen A power amplifier that uses a ClassA discrete FET configuration for the input stage. Contrary to its appearance, the large scale sound with lots of powerful sounds is attractive. It can be used with even higher power as a 650 W mono power amplifier with a simple switch, and it is a highly cost-effective amplifier. There are a few threads on the exterior. Serial 54306E000094 (Tamura Eiji)
Maintenance information: 2024.11.14 Operation confirmed (operation confirmed at 100V)
Accessories: original box, instruction manual, power cable
Main specifications: STEREO: 210W+210W (4Ω) 325W+325W (4Ω) MONO: 625W (8Ω) 420W (4Ω) S/N ratio (1kHz) 94db W450 × H50 × D380mm 6.3 kg
The price has been reduced! 2024/11/10 Sales price 138,000 yen Maintained! This model was particularly popular among domestic power amplifiers at the time. Even when I listen to it now, it has a sense of scale, and the thick sound is attractive enough. The high range is also sufficient, and the lively sound is excellent. The exterior has dullness and small scratches. Serial E043617XZ (Satoshi Yonejima)
Maintenance information: 2024.11.10 Maintained (all left and right main amplifier boards have been soldered and fixed. Output relay replacement. Input volume exchange. (Replace the speaker terminal with a banana plug compatible)
Accessories: instruction manual
Main specifications: 240W+240W (4Ω) 200W+200W (6Ω) 170W+170W (8Ω) SNR 124dB dimensions W435 x H165 x D422mm weight 26 kg
The price has been drastically reduced! 2024/11/10 Sales price 178,000 yen Electrolytic capacitors and film capacitors have been replaced since ATT and disassembly and cleaning of each switch! Accuphase70's vintage stereo power amplifier with A/B switchable. The power supply uses 2 completely independent transformers on the left and right, and is characterized by a clean sound that suppresses mutual interference. The mild and thick tone is a tone connected to the reference power amplifier P-500. In addition to noticeable scratches on the exterior and top plate, dullness, small scratches, etc. can be seen. Serial B2X628 (Yonejima Satoshi)
Maintenance information: 2024.11.10 Maintained (2 output relays, 17 electrolytic capacitors, semi-fixed VR, 2 film capacitors, 12 medium output transistors, each replaced due to IC defects and deterioration. ATT disassembly and cleaning of switches and inputs. FAN disassembly, cleaning and lubrication. Solder correction. Card edge contact cleaning Reapply heat dissipating grease. Increase and tighten the screws. Bias and offset adjustments. Output audio check)
Accessories: No accessories
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 price has been reduced! 2024/11/6 sales price 79,800 yen Maintained! Despite its compact size, the powerful sound with a sense of volume is attractive. Of course, it is compatible with English speakers, but even if you sound the lock with a JBL medium speaker, you won't feel that the driving power is excessive or insufficient. The exterior has dullness and scratches. Serial Q021275 (Yonejima Satoshi)
Maintenance information: 2024.11.6 Maintained (replacement of 2 electrolytic capacitors near the heat source, solder correction. Output element tightening, output filter position correction, wiring restyling, bias and offset check, output sound check)
Accessories: instruction manual, power cord
Main specifications: 50W+50W (8Ω) dimensions W321 x H64 x D207 mm weight 4.62 kg
The price has been drastically reduced. 2024/10/28 sales price 10,000 yen. *Currently sold. A power amplifier that can switch between 2 channels and 4 channels. It also plays jazz and rock with a clear sound. It is also suitable as an additional power amplifier for AV. On the exterior, there are seal marks on the front panel, and insulator marks on the top plate, and a feeling of use such as dullness, abrasions, etc. can be seen (Kobayashi Hitoshi)
Maintenance information: 2024.10.26 Operation confirmed
Accessories: none
Main specifications: W435 x H93 x D265 mm 5.3 kg
※It is inexpensive because there is some peeling and rust. Maintained! Macintosh's first power amplifier with a balanced circuit configuration. Resolution and transparency have been added to the traditional rich, extruded tone. The blue meter, which can be said to be synonymous, is alive and well, and has plenty of presence, pleasing not only the ears but also the eyes. *Front panel peeling has been corrected as much as possible, but some peeling remains. Serial JGP2799 (Yonejima Satoshi)
Maintenance information: 2024.10.30 Maintained (replacement due to poor lamp, electrolytic capacitor failure and deterioration, deteriorated urethane tape replacement meter, acrylic removal, cleaning panel peeling correction (correction of parts that can be fixed even though the condition is poor) volume and switch disassembly cleaning connector cleaning solder correction damaged screw replacement. Bias and offset check output audio 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
The disposal price has been reduced! (Member discounts are not applicable) 2024/10/29 sales price 198,000 yen 2023/12 maintenance completed. Professional series USA Marantz power amplifier. Equipped with an extremely powerful power supply unit, it is a heavyweight power amplifier that is unimaginable from its size. The powerful and close American sound is attractive. There is a feeling of use due to the appearance, dullness, rust, small scratches, abrasions, etc. Serial 30417 (Yamato Yuki)
Maintenance information: 2024.10.29 Operation confirmed
2023.12.29 Maintained (internal oil check, power supply filter C replacement, RCA pin jack replacement, power stage and driver stage check, operation check)
Accessories: copy of instruction manual (Model 510M)
Main specifications: 300W+300W (4Ω) 256W+256W (8Ω) W390 × H120 × D356mm 21 kg
Maintenance completed! This is the first full-scale solid state power amplifier sold by DENON. While the smoothness and intensity of the mid-range like the POA-1000, which was a tube type, is strongly inherited, instantaneous power unique to a solid state has been added, making it an attractive vintage amplifier. The exterior condition has many scratches, dullness, and stains over time. Serial 110939 (Yamato Yuki)
Maintenance information: 2024.10.7 maintained (meter transistor, capacitor replacement, speaker screw installation, meter lamp replacement volume exchange, shaft coupling replacement, output relay replacement, power amplifier part transistor, capacitor, adjustment volume exchange, subsonic switch disassembly, polishing, grease coating, solder repair, internal inspection and cleaning, pin jack polishing, running test) *The moment the power is turned on, The meter swings. *The meter lamp is usually difficult to understand, but you can see it when it gets dark.
Accessories: none
Main specifications: 100W+100W (8Ω), fully equipped with 2 mono contrasts, left and right independent subsonic filters, W410 x H200 x D280 mm, weight 22 kg
The price has been reduced. 2024/9/29 sales price 49,800 yen Stereo power amplifier equipped with output impedance control. It is a power amplifier from the heyday of separation, which is supported by a solid power supply unit and chassis, and can firmly reproduce even the smallest nuances. In addition to the exterior and SP terminal being replaced, you can also see a feeling of use such as dullness, scratches, rust, etc. (Kobayashi Hitoshi)
Maintenance information: 2013.12.29 Maintenance completed (replace those that can be removed, polished, and replaced because the transistors in the amplifier circuit have deteriorated and are rusty. Output relay contact defect disassembly contact correction. Volume exchange caused by one side not making a sound. Replace the display lamp due to deterioration. (This unit was previously repaired and remodeled somewhere, and speaker terminals, internal wiring, etc. have been changed.)
Accessories: instruction manual (copy)
Main specifications: rated output 120W+120W (8Ω Class B) 30W+30W (8Ω Class A) rated power consumption 330W W435 × H146 × D381 mm 21kg
The disposal price has been reduced. Member discounts are not applicable. 2024/8/6 sales price 65,000 yen Maintained! 120V specification Dinaco's transistor stereo power amplifier was developed by utilizing technology obtained with tubular amplifiers in semiconductor circuits. You can enjoy intense, dynamic expression without requiring precise sound expression. Appearance, dullness, rust, scratches, etc. can be seen. ※ Since it is not a DC amplifier, please connect the speaker cable before turning on the power when making sound (Kobayashi Hitoshi)
Maintenance information: 2024.8.6 maintained (poor power stage Tr deterioration, C deterioration in the board, AC cord deterioration → replacement. Operation check, block C status OK)
Accessories: none
Main specifications: 60W+60W W330 x H104 x D260 mm 8 kg
Maintained in 2023/10. The 606 is thick and unimaginable from its compact exterior. The good sound unique to QUAD allows you to enjoy not only classical music, but also jazz vocals in a mild way. The exterior is dull, and there is a feeling of use such as scratches (Satoshi Yonejima)
Maintenance information: 2023.10.3 maintained (with transporter, sponge bolo → anti-vibration rubber installation, replacement of 6 C deterioration in the board, power stage TROK, operation check)
Accessories: power cable
Main specifications: output 140W+140W (8Ω) W321×H140×D238mm 12kg
The disposal price has been reduced! Member prices are not applicable. 2024/10/2 sales price 128,000 yen Maintained in 2023.11! 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 scuffs, dirt, and bumps. Serial 40436 (Yonejima Satoshi)
Maintenance information: 2023.11.18 Maintained (Rch power stage Tr replacement. Pin jack replacement. (DIN4P replacement) 2016.2.7 maintained (input VR Gari exchange RCA terminal installation, IC, capacitor, resistor fuse replacement)
Accessories: copy of instruction manual, power cord
Main specifications: 100W+100W (8Ω) current damping method W341 × H115 × D195 mm 9 kg
The disposal price has been reduced. (Member discounts are not applicable) 2024/8/31 sales price 128,000 yen Maintained! Quad power amplifier Despite its compact body, you can enjoy a smooth, thick sound. It really goes well with speakers made in England, and makes you listen to 70s analog sound with a sense of dynamism. There is a feeling of use, paint peeling, and small scratches from age to generation (Sasaki Shota)
Maintenance information: 2024.8.31 Maintained (fuse replacement and check OK. Other internal Tr, C, R checks OK) 2023.7.26 maintained (power stage Tr, driver Tr semi-short. C and R deterioration replacement in the board, VOL cleaning. Operation check. (*The block capacitor and transformer have been replaced.)
Accessories: power cable
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. 2024/8/10 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 (Hiura Katsuji)
Maintenance information: 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, instruction manual (copy)
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). 2024/8/6 sales price 128,000 yen Maintained! Quad power amplifier Despite its compact body, you can enjoy a smooth, thick sound. It really goes well with speakers made in England, and makes you listen to 70s analog sound with a sense of dynamism. There is dullness and small scratches (Sasaki Shota)
Maintenance information: 2024.8.6 maintained (all internal parts checked, LCH power stage TR x 1 half short NG replacement, DC cut C replacement within the board, bottom cover rubber foot defect replacement, operation check)
Accessories: copy of manual, power cable
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 price not applicable) 2024/8/3 sales price 118,000 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 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 and DC cut C replaced. 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 disposal price has been reduced! (Member prices are not applicable) 2024/8/6 sales price 128,000 yen Maintained! Quad power amplifier Despite its compact body, you can enjoy a smooth, thick sound. As expected, it is compatible with speakers made in England, and it makes you listen to 70s analog sounds with a sense of dynamism. There are peeling scratches in places and a feeling of use. Serial 6105 (Fujisawa Yukishi)
Maintenance information: 2024.8.6 maintained (2 Rch power Tr installed, fuse installed. C, R check. Replace the rubber feet. Operation check)
Accessories: power cord, connection cord
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. 2024/7/27 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. In addition to the exterior, paint peeling, and deterioration, you can see a feeling of use such as dullness, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2024.7.26 maintenance (internal dismantling all checks, Tr, C, R checks. INPUT VOL cleaning, operation check)
Accessories: instruction manual, power cord, connection cord
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) 2024/7/18 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 41000 (Takahashi Nobuyuki)
Maintenance information: 2024.7.18 Operation confirmed 2024.3.22 Maintained! (Internal check DC cut C, gain setting C, etc., exchange Tr, etc. check operation check, DIN4P-RCA female cable creation)
Accessories: power cable connection cable
Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg