The glass panel was replaced by Electri in 2023/5, and the inspection operation was confirmed! DA2 digital audio module upgrade kit included! A pre-main amplifier that can be enjoyed in an almighty way regardless of genre. The tuning for resolution, braking power, and sound field view is pretty good. Even with the analog part, I have a good impression of not forgetting that the MM and MC phono circuits are completely mounted separately. Serial AHR 1548 (Tomonori Asaine)
Maintenance information: 2023.5.18 Maintained (glass panel replacement, operation check, inspection)
Accessories: Remote control instruction manual, power cord, original box ※ jumper pin arrangement is being confirmed
Main specifications: output 200W+200W (2, 4, 8Ω) 5-band equalizer equipped analog input terminals: RCA x 6 systems, XLR x 1 system, MC/MM x 1 system, digital input terminals: USB (PCM32bit/384kHz, DSD256, DXD384kHz) x1 system, TOSLINK/coaxial (24bit/192 kHz) x 2 systems each, MCT (CD/SACD) x1 system W445×H194×D476mm (projection) Part included) 34.1 kg
The price has been reduced! 2025/10/26 sales price 99,800 yen Denon's pre-main amplifier combines popularity and performance. The resolution is even higher than the previous model, and the sound quality is high and the SN is smooth, and it is a powerful machine that combines the thickness and sense of energy in the mid to low range. It works flawlessly with all genres of music. There are insulator marks on the four corners of the top surface. Serial 0021501560 (Fujisawa Yukishi)
Maintenance information: 2025.10.26 Operation confirmed
Accessories: remote control, instruction manual, power cord
Main specifications: output 80W+80W (8Ω) PHONO input (MM/MC) W434 × H181 × D435 mm 24 kg
Audio Daphnia's small mono amplifier. The stereo input is internally synthesized into mono, and playback can be performed with a single speaker. The desktop size makes it easy to enjoy. (TAMURA Eiji)
Maintenance information: 2025.11.2 operation confirmed
Accessories: AC adapter, connection cable
Main specifications: 3.5mm stereo mini input 1 system W122 ✕ H45 ✕ D90mm dead weight 197g
Comes with original box. Denon's mid-range premain amplifier equipped with a USB DAC in the standard PMA-2000 series and is compatible with high resolution. It is also equipped with Advanced AL32 Processing Plus, which can be said to be a feature. In addition to the strong conventional tones, which give a sense of thickness and energy, the sense of transparency in the high range is attractive. There is a small scratch on the side of the front LCD (Sasaki Shota)
Maintenance information: 2025.11.1 operation confirmed
Accessories: original box, remote control, manual
Main specifications: 80W+80W (8Ω) unbalanced input × 4 PHONO (MM/MC) input × 1 EXT, PRE input × 1 unbalanced output (RECORDER) × 1 USB-B input × 1 coaxial digital input × 2 optical digital input × 2 other IR control inputs/outputs × 1 W434 × H182 × D431 mm weight 25 kg
※6 month warranty Onkyo digital amplifier with PHONO. 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 (Oikawa Tetsuji)
Maintenance information: 2025.10.29 Operation confirmed
Accessories: remote control
Main specifications: output 100W+100W (8Ω) power consumption 260W (standby power 0.1W) speaker adaptation 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 kg
Maintained by Marantz. Marantz's mid-level premain. It is characterized by a sense of transparency and delicate tone typical of Marantz. It is supported by a thin yet firm power supply, and you can enjoy sound with a sense of stability. Overall there is dullness (Oikawa Tetsuji)
Maintenance information: 2025.10.16 manufacturer maintained (volume encoder, speaker relay replacement. Soldering correction for amplifier boards, input boards, etc. idling adjustment. (Inspection of each part and implementation of operation tests)
Accessories: remote control, instruction manual, power cable
Main specifications: 90W+90W (8Ω) 140W+140W (4Ω) frequency characteristics 5Hz to 100kHz W440 × H123 × D444 mm 18 kg
Good condition! LUXMAN Class A premain amplifier. The L-550A was completely remodeled, including the housing. Like a new-generation amplifier, it is extremely thick yet can express tight bass. The bright, bright tone is an appeal unique to Luxman Class A amplifiers. Serial G10700264A (Fujisawa Yukishi)
Maintenance information: 2025.10.26 Operation confirmed
Accessories: remote control, instruction manual, power cord
Main specifications: output 20W+20W (8Ω) 40W+40W (4Ω) W440 × H178 × D454 mm 24.3 kg
The disposal price has been reduced. Member discounts are not applicable. 2025/8/26 sales price 99,800 yen Made in 2025, it is a good product with only a small amount of use! Denon's first full-size premain compatible with network playback. It uses a two-stage configuration with the same variable gain type preamp and power amplifier as the Denon 110th anniversary model PMA-A110, and the DNA of higher-level models, such as introducing similar high sound quality parts and exclusive custom parts, has been firmly inherited. The exterior is good (Hiura Katsuji)
Maintenance information: 2025.8.26 sound output confirmed
Accessories: instruction manual, remote control, power cable, original box
Main specifications: 50W+50W (8Ω) PHONO MM/MC Bluetooth version 5.4 playback sampling frequency DSD2.8/5.6 MHz WMA1, MP3, MPEG-4 AAC32 to 48 kHz WAV, FLAC 32 to 192 kHz Apple Lossless 44.1 to 192 kHz W434 x H131 x D375 mm 8.3 kg
The price has been reduced. 2025/9/26 sale price 69,800 yen Marantz mid-level premain. It is characterized by a sense of transparency and delicate tone typical of Marantz. Supported by a thin yet firm power supply unit, you can enjoy sound with a sense of stability (Murakoshi Yoichi)
Maintenance information: 2025.9.25 sound output confirmed
Accessories: remote control, power cord, instruction manual (copy)
Main specifications: 90W+90W (8Ω) 140W+140W (4Ω) frequency characteristics 5Hz to 100kHz W440 × H123 × D444 mm 18 kg
72 deteriorated parts were replaced in 2023/7 and a thorough overhaul was carried out! A pre-main amplifier that was released in the early 70s and features a sophisticated black panel. It is an amplifier that has a sense of power for its output value and has a good balance between the sense of extrusion and bass in the mid-range. Dull and in good condition for the model year. Serial 214020568 (Fujisawa Yukishi)
Maintenance information: 2023.7.31 Maintained (some 20 electrolytic capacitors and 48 transistors replaced. Output relays, fuses, rectifier diodes, and film capacitors have been replaced, lever SW disassembly contacts have been refined, and grease has been applied to prevent oxidation and sulfidation. Circuit readjustment, input/output waveform confirmation, load test (1 kHz sine wave, 8Ω load: 64W+64W, OK), sound output test) 2018.10.10 maintained (electrolytic capacitor, relay, SP terminal, RCA terminal, transistor, semi-fixed resistor, fuse replacement. Contact cleaning and protective agent application. All boards are re-soldered after removing old solder. Various adjustments, input/output, volume operation, waveform confirmation, input/output waveform confirmation, load test)
Accessories: copy of instruction manual
Main specifications: 60W+60W (8Ω) W500 × H140 × D347 mm 20.5 kg
Disposal price has been reduced (member prices are not applicable) 2025/10/2 sales price 398,000 yen Maintained! Levinson's long-selling prime amplifier. A dual monaural configuration that is thoroughly packed into one chassis while keeping the design concept of separation intact. You can be satisfied with all music genres with quality that easily surpasses separate amplifiers. There are dullness and small scratches on the exterior. *Remote control is out of stock. Serial 1307 (Jun Tamai)
Maintenance information: 2025.10.2 Maintained (Rch output terminal (black) replaced and sound output confirmed)
2025.9.11 Maintained (VG board part cleaning/repair Control board backside cleaning/repair DC voltage/DC offset voltage/idling current/other adjustments)
Accessories: power cable, instruction manual ※ remote control missing
Main specifications: 100W+100W (8Ω) XLR input x 2 system RCA input x 3 system gain adjustable (preamp section 0/6/12 dB) W445 x H162 x D483 mm 29.5 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. You can see a feeling of use on the exterior, dullness, stains, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2025.10.24 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
Thorough maintenance has been carried out from polishing the internal contacts to replacing the deterioration resistors! Standard ES Primain model released in 1986. It is also equipped with a cartridge load selector, making it a perfect car for those who want to use it in a wide range of ways. The sound has momentum, and the thick sound is attractive. The exterior has small scratches and dullness appropriate to the model year. Serial 211520 (Yonejima Satoshi)
Maintenance information: 2025.5.10 maintained (power lamp (green) out replacement, 14 parts of the board resistance deterioration replacement, 2 additional INPUT selectors, Cartrich LOAD selector, RECOUT selector, polishing cleaning grease application for each disassembly contact, mute push SW, source direct push SW disassembly contact polishing grease application, etc. DC bias/DC balance adjustment, input/output connection sound output confirm. (Internal cleaning carried out)
Accessories: instruction manual
Main specifications: 105W+105W (8Ω) phono input mm/MC compatible dimensions W470 x H161 x D436 mm weight 18.6 kg
The price has been reduced. 2025/10/16 sales price 79,800 yen with box! A network receiver compatible with various music streaming services. Equipped with unique sound field correction technology, you can enjoy high-quality sound that maximizes the appeal of high-resolution sound sources. The exterior is generally beautiful with no conspicuous scratches. Serial Y117863WY (Tomonori Asaine)
Maintenance information: 2025.10.14 sound output confirmed
Accessories: remote control instruction manual, antenna, original box, power cable
Main specifications: rated output 100W+100W/8Ω, 120W+120W/6Ω (2ch simultaneous drive, 20Hz to 20kHz, 0.07% THD) sampling frequency 384kHz/32bit (WAV*/AIFF), 384kHz/24bit (FLAC), 96kHz/24bit (ALAC), 48kHz (MP3/WMA/MPEG-4 AAC), 11.2MHz/1 bit (DSD256), 5.6MH/ 1 bit (DSD128), 2.8 MHz/1 bit (DSD64) * linear PCM format only. 32-bit float files cannot be played. Size 435W x 151H x 395Dmm (including legs and protrusions), mass 11.4 kg
※Side panels are in poor condition, such as chipping or peeling, so they are inexpensive. Maintained! A prime amplifier developed during the heyday of CDs and gained popularity. The powerful, punchy sound quality, which combines the quality of the mid-high range with the power of the low frequencies, is attractive. With excellent sound pressure, you can clearly enjoy the contours of the bass and drums. The exterior is dull, side panels are peeling, scratches, back paint bald, etc. Serial 601042780 (Yonejima Satoshi)
Maintenance information: 2025.10.21 Maintained (master volume dismantled and cleaned. Push SW disassembly and polishing (poker 1.2, tone, turnover, subsonic, muting, loudness, processor) slide switch disassembly and polishing (input selector, power amplifier direct, source direct, tape, reckout, MM/MC) output relay, headphone relay replacement. Power amplifier section, transistor, adjustment volume replacement and solder repair. Power supply transistor replacement, solder repair. Other volume cleaning, interior and exterior inspection cleaning, DC, bias adjustment, operation confirmation)
Accessories: No accessories
Main specifications: Advanced α-X circuit equipped with 160W+160W (8Ω) damping factor 150 (8Ω) Phonomm/MC compatible W460 x H159 x D446 mm weight 33 kg
53 capacitors, 24 transistors have been replaced, and the VR internal dismantling and cleaning has been thoroughly brushed up! A flagship model from the 70s. Only this model has a very aggressive sound, and the sound comes out hot and forward. This is one car that makes jazz and rock sound crisp, thick, and exhilarating. Not only is the sound completely different from modern amplifiers, but the retro face is also attractive. The exterior has stains on the top plate and dullness on the metal part (Ryo Mizusaki)
Maintenance information: 2025.10.22 Maintained (53 capacitors, 24 transistors, 4 semi-fixed resistors, resistors, relays, 12 total SP terminals, 32 all RCA terminals, bulbs, 9 fuses replaced. Each SW and VR internal decomposition cleaning, board re-soldering flux cleaning, offset, and idle current adjustments were made. Input/output waveforms were checked, left and right balance checked, load tests, and comprehensive operation tests were performed to confirm normal operation. Load test (1kHz, sine wave, 80W+80W at 8Ω load, OK)
Accessories: instruction manual
Main specifications: 80W+80W (8Ω) frequency characteristics 5Hz to 100kHz tone control/bass, midrange, treble 3-stage adjustment W462 x H155 x D316 mm 17.5 kg
A mid-range premain amplifier using the new UHC-MOS. Compared to the previous model PMA-1500AE, which had a flat sound, the sense of resolution and sound image localization have been improved. The high signal-to-noise level, which is compatible with the latest sound sources, shines. There is a small scratch on the top plate (Oikawa Tetsuji)
Maintenance information: 2025.9.27 operation confirmed
Accessories: remote control, instruction manual, power cable
Main specifications: output 70W+70W (8Ω) PHONO (MM/ MC) built-in frequency characteristics 5Hz to 100kHz W434 x H135 x D414 mm 16.1 kg
The price has been drastically reduced. 2025/10/17 sales price 158,000 yen A pre-main amplifier with a low center of gravity, thick enough to listen to. It is a product where you can feel the culmination of Denon, which has a wide high range and high transparency. While it has plenty of driving power, the glossy medium to high range expression is an attractive premain. There are line scratches in places on the top plate (Kojima Yosuke)
Accessories: copy of instruction manual, power cable
Main specifications: 120W+120W (8Ω) 4 input systems (RCA) PHONO1 system (MM/MC) W434 x H181 x D494 mm 29 kg
Hi-Fi is in stock for the first time! Black color model. A premain amplifier using the Dutch Hypex amplifier module Ncore. The clear sound quality with a high signal-to-noise ratio reliably depicts the delicate sound of high-resolution sound sources. There is an XLR balanced input that can be connected to balance. The exterior is good with no conspicuous scratches. Serial 2250008 (Yonejima Satoshi)
Maintenance information: 2025.10.19 Operation confirmed
Accessories: remote control, instruction manual, power cord, original box
Main specifications: rated output 115W+115W (4Ω) 70W+70W (8Ω) input section LINE input XLR (No. 2 HOT) x 1 system LINE input RCA x 3 system impedance 4Ω to 8Ω W290 x H812 x D264 mm weight 4.2 kg
Maintained in October 2021! This α907 limited model is limited to 2000 units. A premain amplifier that stands out for its high SNR and good sound unique to MOS-FET. The fine particle feel in the mid to high range is one of the best in the history of SANSUI premain amplifiers. Coupled with the thick, energetic mid-low range, it is a famous model that has not faded its appeal even now. There are small scratches and dullness on the exterior. Serial 605021388 (Tomonori Asaine)
Maintenance information: 2025.10.19 Operation confirmation 2021.10.10 Maintained (main amplifier output relay replacement, headphone relay replacement, protector circuit section transistor replacement, solder main part repair, input selector, power amplifier direct, source direct, tape, reckout switch disassembly and polishing, each volume, switch cleaning, offset adjustment inspection , operation inspection)
Accessories: instruction manual
Main specifications: 80W+80W (8Ω) MM/MC compatible MOS-FET use W466 × H166 × D453 mm 34 kg
Maintained by the manufacturer! A pre main amplifier with excellent cost performance. It is also suitable for entry-level machines and second systems. The exterior is dull and dirty overall (Oikawa Tetsuji)
Maintenance information: 2025.10.18 Denon maintained (source direct SW, loudness SW, disassembly cleaning. SP relay replacement. (Other inspection of each part, operation sound test)
Accessories: power cable, copy of instruction manual ※ remote control is missing
Main specifications: 70W+70W (8Ω) 140W+140W (4Ω) PHONO/MM/MC switching compatible W434 x H134 x D407 mm 14.6 kg
Maintained! 80s LUX Class A Premain Amp It is a high cost performance model with almost the same content as the L-530 in terms of circuit. You can enjoy the warm and smooth sound unique to Class A amplifiers. You can see a feeling of use, such as appearance, dullness, scratches, etc. There is a Luxman maintenance sticker on the back. Cereal 2502957 (Kobayashi Hitoshi)
Maintenance information: 2025.10.29 Maintenance completed (PHONO changeover switch disassembly contact polishing. Output relay replacement. I/O pin jack polish Long check) 2019 manufacturer maintenance completed (3 power supply capacitors replaced, amplifier part full solder correction, input selector and cartridge selector disassembly contact cleaning, each volume, switch contact cleaning, general adjustment) 2014.6.11 maintained (16 transistors replaced, each part inspected)
Accessories: instruction manual
Main specifications: 100W+100W (AB grade) 8W+8W (A grade) W453 x H161 x D444 mm 17.3 kg
The disposal price has been reduced! Member discounts are not applicable. 2025/10/10 sales price 178,000 yen The volume, switches, etc. have been disassembled and polished and maintained! Next generation model of the L-550, a famous pure Class A amplifier. The very smooth, deafening, warm color sound perfectly matches the delicate sound quality of pure A grade. It also has a reputation for analog sound, and thick, supple sound quality can be obtained with both MM/MC. There is a float on the front of the top plate, and there is a feeling of use such as small scratches scattered around. Serial A80612101 (Yonejima Satoshi)
Maintenance information: 2025.8.28 maintained (power circuit ground line corrected) 2025.8.2 maintained (power circuit repair adjustment. Output relay replacement. Volume lamp replacement. Switch and volume disassembly contact polishing. (I/O pin jack polish)
Accessories: instruction manual
Main specifications: pure A grade 50W+50W (8Ω) PHONO (MM/MC) PHONO/CD straight circuit system W453 x H174 x D470 mm weight 20 kg
The price has been reduced! 2025/10/15 sales price 128,000 yen Maintained! Line-only pre-main amplifier. It is a model that omits both the headphone terminal and the remote control, and has thoroughly implemented simple is best. After all, the middle range is thick and the high range is smooth, lax sound. The supple tone gives a sense of security, and the warmth similar to vacuum tube amplifiers is attractive. Externally, there are small scratches on the cabinet. Serial W51010998 (Yonejima Satoshi)
Maintenance information: 2025.10.15 Maintained (power supply circuit left and right main amplifier circuit, etc., soldering of each circuit board deterioration correction repair. Bad output relay contact replacement. The main volume of this unit is not affected by the resistance attenuator type. Disassembly contact polishing for other panel switches. (I/O pin jack polish)
Accessories: copy of instruction manual
Main specifications: 50W+50W (8Ω) W438 × H155 × D446mm 23.0 kg