This is a line-only premain amplifier that makes it easy to enjoy accuphase sounds. It has a simple design that eliminates waste, and makes classical music and vocals sound comfortable. It is a model where you can enjoy a clean and clean accuphase sound. The exterior has scratches on the front panel and volume. Serial E5Y307 (Fujisawa Yukishi)
Maintenance information: 2025.12.14 Operation confirmed
Accessories: remote control, power cord
Main specifications: 80W+80W (8Ω) W475 x H150 x D417 mm weight 18.0 kg
Maintenance has been completed, such as switch disassembly and polishing, cleaning of each volume, and interior and exterior inspection and cleaning. This is an attractive premain with a good sound. It is equipped with a large toroidal transformer, so you can enjoy powerful bass reproduction unique to this age. You can see a feeling of use, such as appearance, dullness, marks, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2025.12.13 maintained (phono circuit resistance exchange switch disassembly and polishing (tone, frequency switching, subsonic, loudness, muting, input selector) volume cleaning, interior and exterior inspection cleaning, pin jack polishing, operation inspection) 2023.8.8 maintained (master volume replacement, output relay replacement, main amplifier circuit transistor, semi-fixed Volume replacement, selector lamp replacement, phono selector, reckout switch disassembly, polishing grease application, solder repair, each volume, switch cleaning, switch guide repair,
(Internal inspection cleaning, adjustment, operation confirmation)
Accessories: copy of instruction manual
Main specifications: 150W+150W (8Ω) with 4 line inputs, phono MM/MC, W466 x H161 x D431 mm 17.5 kg
The final model of the Sansui α507 series. This is an entry class for the NRA series, which is highly transparent and crisp. This is an attractive car with a good balance and luster. You can see a feeling of use such as appearance, dullness, small scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2025.11.21 Operation confirmed
Accessories: instruction manual
Main specifications: 60W+60W (8Ω) line input 5 systems phono 1 system (MM/MC switching) W432 x H165 x D450 mm 15.5 kg
Maintenance has been completed, such as disassembling, polishing, and cleaning the volume and switches! This is a premain amplifier that makes a powerful, strong sound. It brings out the power of low frequencies such as rock and jazz in onkyo, which has a reputation in the middle and high ranges. Functionality is also enhanced, such as multiple inputs and PHONO (MM/MC) included. The exterior is dull and has a sense of use depending on the age. Serial 1808014543 (Fujisawa Yukishi)
Maintenance information: 2025.12.9 maintained (balance volume replacement. Source direct switch and other video modes, reckout switch disassembly and polishing. Main volume dismantling and cleaning. Output relay replacement. Solder repair. Other volumes, switch cleaning, internal inspection cleaning, pin jack polishing, operation confirmation)
Accessories: No accessories
Main specifications: 120W+120W (6Ω) 105W+105W (8Ω) W435 x H168 x D392 mm 20.3 kg
The disposal price has been reduced. Member prices are not applicable. 22025.4.7 sales price: 108,000 yen Maintenance has been completed, including 6 output MOS transistors, replacement of 8 other transistors, and disassembly and polishing of selectors. A thick, roomy, warm color premain amplifier. It makes me listen carefully to the music in an authentic style, and it plays female vocals etc. well. It has a built-in MC transformer that is great for those who listen to records. There are small scratches and dullness appropriate to the model year (Oikawa Tetsuji)
Maintenance information: 2025.4.7 maintained (6 defective single-channel output MOS transistors replaced, 8 other drive transistors replaced for sound, other speaker relays replaced due to deterioration, other selector switches disassembly contact polishing grease application, other idling, offset electrical adjustment, sound output confirmation for each input/output connection)
Accessories: copy of the manual
Main specifications: Class A output 35W+35W (8Ω) Class AB output 140W+140W (8Ω) 220W+220W (4Ω) phono mm/MC compatible size W465 x H146 x D452 mm weight 23 kg
Maintained by Luxman Service in 2018! *Inexpensive because the remote control is missing, the paint on the power switch has fallen off, and the cabinet is scratched. Lux mid-level class premain. Equipped with a warm colored VU meter. It has a strong low frequency that exceeds the output, and a soft sound typical of a lux (Sasaki Shota)
Maintenance information: 2018.9.2 manufacturer maintained (replaced due to poor contact with input selector SW. The volume was replaced due to poor VR contact. The pretector relay was replaced due to poor contact. The meter lamp was replaced due to deterioration. idling current adjustment. Operation test)
Accessories: Universal power cable
Main specifications: 100W+100W (8Ω) size W467 x H179 x D440 mm 20 kg
The disposal price has been reduced. Member prices are not applicable. 2025/12/3 sales price 238,000 yen ※There is PHONO notation, but the BNC input is a line-only type equipped with an NA328/2 module. Maintenance has been completed, including replacing 35 capacitors and creating an input cable! This is a pre-+ power amplifier set. Although it is small, it has high gain, and it lets you hear deep, English-like sounds. With a very sticky middle range and strong driving power, not only small groups but also large groups can make a loud noise. There are dirt and threads on the exterior. *There is some pop noise when the power is turned on and off, or when the preamp is unmuted, but this is a specification. There is overall dullness and small scratches (Mizusaki Ryo)
Maintenance information: 2025.11.9 maintained (NAP140 voltage failure → C deterioration in tantalum C short board replacement NAC62 board C capacity failure → replacement each SWVOL galley → cleaning (DIN5P → RCA male 1m cable x 2 created) operation check)
Accessories: power cable, connection cable, copy of instruction manual
Main specifications: NAC62 · input phono BNC (RCA) x 1 line DIN terminal x 3 systems W250 x H76 x D300 mm weight 2.5 kg NAP 140 · output 45 x 45 W (8 ohms) W205 x H76 x D300 mm weight approx. 5 kg
Main volume has been replaced and other switches have been disassembled and polished! The first model in the α607 series. It is characterized by clear, well-penetrating mid-high tones and powerful bass. It excels at sharpness and balance, and you can listen to jazz and rock in particular comfortably. This is one car that shines for its high cost performance. There is a dull feeling of use (Sasaki Shota)
Maintenance information: 2025.12.13 Maintained (main volume replacement. Switch disassembly and polishing (tone, loudness, subsonic, muting, processor, reck-out, MM/MC) output relay replacement. Protector transistor replacement. Solder repairs on the power supply and other main parts. (Interior and exterior inspection and cleaning, pin jack polishing, input/output confirmation, operation inspection)
Accessories: copy of the manual
Main specifications: 105W+105W (6Ω) 90W+90W (8Ω) W448 × H160 × D441 mm 15.7 kg
※There are some cracks on the decorative panel. Maintenance has been completed, such as volume dismantling and cleaning, and disassembling and polishing of each switch! Following the technology at the time of development of the advanced C-2302, a balanced configuration was adopted for the advanced α-X circuit and power supply unit. The sense of strength and driving power of the highest class as a premain is attractive. There are scratches and line marks on the exterior. Serial 622093654 (Fujisawa Yukishi)
Maintenance information: 2025.12.13 Maintained (main volume dismantled and cleaned. Switch disassembly and polishing (input selector, power amplifier direct, source direct, reck-out, turnover, tone, loudness, muting, processor, MM/ MC). Replace output relays and headphone relays. Balance input terminal replacement. Power supply transistor replacement. Main amplifier section volume adjustment, diode replacement. Solder repair. (Interior and exterior inspection cleaning, DC, bias adjustment, operation inspection)
Accessories: No accessories
Main specifications: 160W+160W (8Ω) 190W+190W (6Ω) phono equipped with advanced α-x balance circuit (MM/MC switching) dimensions W460 x H161 x D446 mm weight 33 kg
※Since it is cheap, it is a gift as is. Although it is an entry model, this HiFi pre-main amplifier is infused with technical power to fully express the overall picture of music. The volume is loud enough for easy listening. The sound quality is gentle and soft. The exterior has a feeling of use such as dullness and small scratches. Serial Y233275SU (Jun Tamai)
Maintenance information: 2025.12.13 sound output confirmed
Accessories: none
Main specifications: rated output 70W+70W size W435 x H151 x D391 mm weight 8.7 kg
DENON's pre main amplifier with excellent cost performance. It is compatible with MM/MC and is suitable for analog introductory machines and second systems. Externally, there are insulator marks on the top plate. Serial 5011564166 (Fujisawa Yukishi)
Maintenance information: 2025.12.9 operation confirmed
Accessories: remote control, instruction manual, power cord
Main specifications: 70W+70W (8Ω) 140W+140W (4Ω) PHONO/MM/MC switching compatible W434 x H134 x D407 mm 14.6 kg
Maintenance has been completed for switches, volume disassembly, contact polishing, etc. Maintained! The L-550X is the successor to the L-550, a masterpiece premain amplifier with pure Class A operation. Compared to the initial model, there are no changes other than the addition of an input terminal, and it plays back bright and spacious lacktones. MC compatible, which is great for analog users. There is a feeling of use on the exterior, such as scratches and dullness over time. Serial 4401108 (Yamato Yuki)
Maintenance information: 2025.12.11 Maintained (switch, volume disassembly contact polishing output relay contact defect replacement, each circuit board soldering, all correction, main volume disassembly contact polishing, input/output pin jack polish)
Accessories: copy of instruction manual
Main specifications: 50W+50W (8Ω) pre-main separation function W453 x H174 x D470 mm 20 kg
Denon's mid-range model. You can enjoy all genres with good modern response and unobtrusive sound quality. Since it is relatively thin, this model is recommended for those who are concerned about space. Phono is compatible with MM/MC. On the exterior, you can see a feeling of use such as dullness and small scratches. Serial 1081504006 (Jun Tamai)
Maintenance information: 2025.12.12 sound output confirmed
Accessories: Remote control power cable, copy of instruction manual
Main specifications: rated output 70W+70W (8Ω) dimensions W434 x H134 x D410 mm weight 15.5 kg
The disposal price has been reduced. Member discounts are not applicable. 2025/11/10 sales price 89,800 yen ※There will be a slight popping sound when the first protection is removed. The woofer moves a lot when the power is turned off, but this is a product specification. Maintained! Designed with a complete dual mono configuration from the power transformer. The pre and power are also independently configured. The high range is sparkling, and the mid and low frequencies are thick, making it a profound sound. The exterior has dullness, threads, and scratches on the front (Takasaki Atsushi)
Maintenance Information: 2025.11.9 Maintained (Right Channel Side Main Capacitor Replaced with High Voltage Capacitor) 2024.5.31 Maintained (Function Memory Battery Replacement, Board Pattern Correction)
Accessories: instruction manual, remote control power cable
Main specifications: effective output 85W+85W (8Ω) 170W+170W (4Ω) input: unbalanced (RCA) x 6 systems (1 system is PHONO: MM/MC compatible, 1 is TAPE) outer dimensions W440 mm x H95 mm x D400 mm weight 13 kg
The price has been reduced! 2025/11/21 sales price 89,800 yen In addition to replacing deteriorated parts, every corner has been maintained by polishing disassembly contacts for switches and volumes! As the model name suggests, it is a model that emphasizes matching with CDs, which was released by Sansui in 1986. It is equipped with a CD DIRECT terminal, so if you want to listen to CDs with this amplifier, please connect here and listen. There are no extra flavors, and you can enjoy the pure and fresh sound quality of Sansui. There is a feeling of use such as external line damage. Please note that it does not have a built-in phono amplifier. Serial 436092832 (Jun Tamai)
Maintenance information: 2025.11.20 Maintained (main volume dismantling, cleaning, selector, lamp replacement, relay replacement, switch disassembly and polishing (input selector, tone, subsonic, loudness, muting, reck-out, tape switching), solder repair, power amplifier part adjustment volume replacement, etc., volume cleaning, interior and exterior inspection and cleaning)
Accessories: copy of instruction manual
Main specifications: 130W+130W (8Ω) rated power consumption 320W W466 x H161 x D431 mm weight 20.6 kg
The disposal price has been reduced! (Member prices are not applicable) 2024/4/2 sales price 79,800 yen Maintenance has been completed! Pre-main amplifier with built-in DA converter. An amplifier that allows you to enjoy a gentle, expansive sound like Denon with analog input, and sound quality with a wide range with digital input. This amplifier can also be recommended as an amplifier to be combined with PC audio (Daiki Goto)
Maintenance information: 2024.2.21 maintained (function, recout, digital input, speaker, tape, loudness switch disassembly, polishing grease application, output relay replacement, bus volume replacement, solder repair, various volumes, switch cleaning, interior and exterior inspection and cleaning, digital input/output confirmation, operation confirmation. (*Since the bus volume is similar, the bus lifts slightly when the source is directly off)
Accessories: none
Main specifications: 110W+110W (8Ω) phono (MM/MC switching) 5 digital input systems (coaxial x 3/optical x 2) W434 x H180 x D420 mm 18 kg released in 1989 (Kojima Yosuke)
Maintained including 60 deteriorated capacitors, lamps, relays, and resistor replacements. The fresh, natural sound has been completely revived. The smooth sound that fits easily into the ears is unique to YAMAHA of this era. Since you can switch between A grade and B grade movements with the touch of a switch, one of the fun things is that you can distinguish between classical and female vocals are A grade and rock is B grade, depending on your preferences (Sasaki Shota)
Maintenance information: 2025.10.31 Maintained (power lamp, electrolytic capacitor, tantalum capacitor, relay, fuse resistor, semi-fixed resistor replacement, volume cleaning, switch, selector disassembly and cleaning. Clean the housing, panels, knobs, and terminals. (Readjustment of each part, aging test)
Accessories: none
Main specifications: 15W+15W (8Ω/Class A operation) 70W+70W (8Ω/Class B operation) W436 x H144 x D323 mm 15.5 kg
Maintenance has been completed, including the replacement of 20 capacitors and transistors! An improved model of the AU-D707F. Super FF and diamond differential circuits are used in the power amplifier section. It was released before the CD appeared, and the energetic sound quality, which makes you feel like Sansui, is attractive. I would recommend this model to all jazz and rock fans. Paint peeling can be seen on VOL. The exterior has a feeling of use such as dullness and small scratches. Serial 823020101 (Jun Tamai)
Maintenance information: 2025.12.5 maintained (main volume dismantling and cleaning treble, bus, balance volume exchange output relay, headphone relay replacement switch disassembly and polishing (tone, loudness, subsonic, muting, tape, tape 12 switching, input selector, reck-out) main amplifier transistors (16 pieces) capacitors (4 pieces) replacement power supply diodes, floating resistors (Replacement solder repair, pin jack polishing, interior and exterior inspection and cleaning)
Accessories: copy of instruction manual
Main specifications: 100W+100W PHONO2 system MM/MC mounted W460 x H160 x D404 mm 14.7 kg
The price has been drastically reduced! 2025/10/28 PM-17SA refined model with sales price 59,800 yen. Further refinement has been applied to the highly transparent tone, which is clear and has good visibility. The thin and stylish design and the delicate expressiveness of modern SN are attractive. The subdued power draws more precise and expressive depictions. The exterior has a feeling of use such as dullness. Serial A1010619001588 (Tomoho Asaine)
Maintenance information: 2025.10.28 Operation confirmed ※ If the input selector is not turned slowly, it will malfunction.
Accessories: remote control power cable
Main specifications: equipped with pre-out power-in terminals 60W+60W (8Ω) W458 x H110 x D429 mm 16 kg
The price has been reduced. 2025/11/14 sales price 79,800 yen Maintained! A popular model from the late Sansui period. While expanding the range, the sound that makes you feel the thickness and energy unique to the company still fits well with modern speakers. The punch power in the mid to low range that easily drives a medium bookshelf speaker is truly amazing. There are abrasions and line scratches on the top plate (Kojima Yosuke)
Maintenance information: 2025.11.14 maintained (2 output relays, replacement of 2 protector capacitors, main volume dismantling and cleaning, switch disassembly and polishing (input selector, power amplifier direct, source direct, reck-out, tape) push SW disassembly and polishing (SP1, 2, tone, loudness, subsonic, processor, MM/MC) power amplifier, power supply solder repair, etc., volume (Cleaning, interior and exterior inspection cleaning, adjustment, operation check)
Accessories: copy of instruction manual
Main specifications: 90W+90W NEW HYPERα-X balance circuit PHONO (MM/MC) power amplifier with direct function W430 x H162 x D452 mm 18 kg
The price has been reduced. 2025/9/13 sales price 79,800 yen Maintenance completed! A late model in the popular classic 607 series. The resolution is high, the outline is clear, and matches well with modern speakers. You can experience the powerful mid to low range in this price range. There are small scratches and dullness. The exterior color has changed slightly due to aging. Serial 605071071 (Eternity Mirai)
Maintenance information: 2025.9.13 maintained (① master volume dismantling and cleaning ② switch disassembly and polishing (source direct, input selector, power amplifier direct, tape, reckout, tone, muting, subsonic, processor, MM/MCK replacement, loudness) ③ output relay replacement ④ relay circuit capacitor replacement ⑤ power amplifier transistor replacement ⑥ solder repair ⑦ other volume (Cleaning, internal inspection cleaning, pin jack polishing, DC adjustment, running test)
Accessories: manual
Main specifications: 105W+105W (6Ω) 90W+90W (8Ω) phono MM/ MC switching W430 x H162 x D452 mm 18 kg
The disposal price has been reduced! (Member prices are not applicable) 2025/5/14 sales price 59,800 yen The contact system has been thoroughly maintained! A multifunctional amplifier that can also do microphone misciting, etc. It has a clear and straight sound typical of BOSE, and it is one that was used for commercial use. The exterior has small scratches and paint peeling on the corner of the front panel top plate (Oikawa Tetsuji)
Maintenance information: 2025.5.14 Maintained (output relay replaced. INPUT selector disassembly contact polishing. Repair anything else that can be disassembled by disassembling it. Since the main volume is special, it cannot be disassembled and the contacts are cleaned. (The panel lamp on this unit has been modified and the white LED is attached, but leave it as it is)
Accessories: none
Main specifications: 100W+100W W474 x H150 x D370 mm 12.3 kg
Maintained! ONKYO's pre-main amplifier. A non-feedback power amplifier is used, and the power supply transformer is of high quality and is carefully crafted. When connected to the power amplifier direct position, it can be directly input to the power amplifier via volume only. There is dullness (Daiki Goto)
Maintenance information: 2025.11.21 Maintained (switch and volume class disassembly contact polishing. The main volume is an attenuator type and is welded with high quality parts, so it cannot be disassembled, but there is no operation problem. I/O pin jack polish Soldering correction for each circuit board.)
Accessories: none
Main specifications: 100W+100W (8Ω) PHONO input 1 system (MM/ MC switching) W445 x H165 x D434 mm 18.0 kg
The price has been reduced. 2025/10/16 digital amplifier with PHONO sold price of 39,800 yen. It is equipped with a digital amplifier that has achieved 100A with instantaneous current supply capability far surpassing typical analog amplifiers. The sound quality clearly shows the advantages of a digital amplifier with a high signal-to-noise ratio and excellent sense of subtlety. It can also be used as a power amplifier and is expandable. In addition to dullness and small scratches over time, there are tape marks and yellowing on the SP terminal. Serial 16Y0911307 (Yamato Yuki)
Maintenance information: 2025.10.16 Operation confirmed
Accessories: power cable
Main specifications: output 100W+100W (8Ω) power consumption 260W (standby power 0.1W) speaker compatible impedance 4 to 16 ohms (8 to 16 ohms when A+B is connected simultaneously) size W435 x H144 x D431 mm weight 17.6 kGRE: Bui linh's product was shipped
Maintained. Denon's 80s pre-main amp. DENON of this era emphasizes the mid-range and neutral sound quality, so you won't get tired of listening, and the tuning regardless of genre makes a good impression. You can see a feeling of use, such as appearance, dullness, abrasions, etc. (Kanai Hidetsugu)
Maintenance information: 2025.11.17 Maintained (panel switch and volume class disassembly contact polishing. I/O pin jack polish. Soldering correction for each circuit board)
Accessories: none
Main specifications: 105W+105W (8Ω) 125W+125W (6Ω) W434 × H139 × D414 mm 10.6 kg
Maintained by the manufacturer. The first generation of the highly popular Denon Primaine 2000 series. The strong and elastic sense of power is the best in the series, and the driving ability is excellent. The overwhelming cost performance is attractive. It is compatible with MM/MC, which is great even for analog fans, so record playback is perfect. You can see a feeling of use, such as appearance, dullness, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2025.11.14 manufacturer maintenance completed (main VR tightening, function SW, SP relay disassembly and cleaning. (Other inspection of each part, operation sound test)
Accessories: copy of instruction manual, power cord
Main specifications: 160W+160W (4Ω) line input 4 systems, 1 phono system (MM/MC switching: back switch), 2 tape systems, W434 x H180 x D478 mm, 20 kg
The disposal price has been reduced (member prices are not applicable). 2025/6/21 sales price 128,000 yen All panel switches and volumes have been disassembled and maintained, including contact polishing! You can use it comfortably. The famous aircraft of yesteryear has been revived. It is an amplifier that can be switched between A/B classes, so you can enjoy it according to your preferences. The clear, edgy sound is exhilarating (Daiki Goto)
Maintenance information: 2025.5.25 Maintained (panel switch and volume are all disassembled and contact polished. Replacing deteriorated transistors in the equalizer circuit. Transistors such as other preamp circuits, tone control circuits, and power supply circuits have been replaced due to previous repairs. I/O pin jack polish Electric circuit DC adjustment, idling current adjustment.)
Accessories: copy of the manual
Main specifications: 15W+15W (A grade/8Ω) 75W+75W (B-grade/8Ω) W436 x H144 x D323 mm 15.5 kg
Each part, such as volume, has been dismantled, polished, and maintained, such as replacing deteriorated parts. The first model of the Sansui 607 series. It's one that makes me feel like it was built in a golden age. It has the strength of low-frequency extrusion and a sharp sense of dynamism, and you can fully enjoy the goodness of construction during the golden age. In particular, it shows its true value when it comes to playing records.
Maintenance information: 2025.11.13 maintained (power supply R circuit part, replacement master volume dismantling cleaning balance for resistance disconnection, bus, treble volume exchange switch disassembly and polishing (input selector, reck-out, tone, subsonic, ride ness, coupler, tape selector) output relay replacement power supply unit, resistance, diode replacement, solder repair pin jack polishing, interior and exterior inspection and cleaning, operation confirmation (notice matters) approx. In 20 seconds, the relay will work. There is a clicking sound when the volume is at minimum. (Adjustments have been made, but there may be a popping sound when the power is turned on)
Accessories: copy of instruction manual
Main specifications: 65W+65W (8Ω) W430 × H168 × D389 mm 15.3 kg
Maintained! A late model in the popular classic 607 series. The resolution is high, the outline is clear, and matches well with modern speakers. You can experience the powerful mid to low range in this price range. The exterior condition is damaged and dull over time. Serial 605081769 (Yamato Yuki)
Maintenance information: 2025.10.23 maintained (master volume dismantling cleaning switch disassembly and polishing (input selector, power amplifier direct, tape, reckout) push SW disassembly and polishing (SP1, 2, tone, loudness, muting, subsonic, processor, MM/MC) output relay replacement protector part capacitor replacement solder repair other volume cleaning, interior and exterior Inspection and cleaning)
Accessories: copy of instruction manual
Main specifications: 105W+105W (6Ω) 90W+90W (8Ω) phono MM/ MC switching W430 x H162 x D452 mm 18 kg
Maintained. The mid-size α series uses an α-X balance circuit that prevents the effects of noise and distortion from the ground. The smooth, stretchy sound quality is attractive. Designed with CD playback in mind, the sound separation is good, and it is a classic premain that will keep you entertained regardless of genre. Overall, there is a feeling of use such as dullness. Serial 438045069 (Mizushima Itsuro)
Maintenance information: 2025.11.11 maintenance completed (main volume dismantling, cleaning, and fixing, switch disassembly and polishing (reckout tone subsonic muting, loudness source direct processor, MM/MC), output relay replacement, power amplifier transistor replacement, capacitor installation, other volume switch cleaning, interior and exterior inspection and cleaning, pin jack polishing, operation confirmation)
Accessories: copy of instruction manual
Main specifications: 90W+90W (8Ω) W448 x H160 x D441 mm 16.0 kg