An integrated stereo amplifier equipped with an advanced “AAVA volume control” that achieves a high signal-to-noise ratio and low distortion ratio. The power amplifier section has a parallel push-pull configuration with a high power transistor, and the strong power supply unit and low impedance output circuit achieve clear sound with good visibility. The exterior is a beautiful item with no conspicuous scratches. Serial F1 Y408 (Satoshi Yonejima)
Maintenance information: 2024.4.3 operation confirmed
Accessories: remote control power cord
Main specifications: rated continuous average output 120w/ch (4Ω) 90w/ch (8Ω) damping factor 500 (8Ω/50Hz) W465 × H151 × D420 mm 20.4 kg
A model commemorating the 50th anniversary of the founding of Accuphase. The preamp section is equipped with a balanced AAVA system, and the input amplifier and I/V conversion amplifier have a discrete configuration to achieve even lower noise, and the excellent separation of momentum that surpasses even new-age separate systems shines through. There are no noticeable scratches on the exterior. Serial COY231 (Satoshi Yonejima)
Maintenance information: 2024.4.3 operation confirmed
Accessories: remote control instruction manual power cord
Main specifications: 300w/ch (1Ω), 200w/ch (2Ω), 100w/ch (4Ω), 50w/ch (8Ω) damping factor 1000 (8Ω 50Hz) load impedance 2 to 16Ω W465 x H239 x D502 mm weight 36 kg
This is a very rare Macton vacuum tube premain amplifier. KT77 is used as the output tube, and the smooth, glossy sound is attractive. This is one unit that allows you to fully enjoy the look of a vacuum tube amplifier. There are threads and dullness on the exterior (Tamura Eiji)
Maintenance information: 2024.4.2 operation confirmed
Accessories: power cord
Main specifications: 32W+32W (16Ω) W440 × H183 × D315 mm weight 18.3 kg
The Mark 2 model has a higher degree of perfection by drastically upgrading the power supply and preamp circuit. Higher grade technology comparable to separate amplifiers has been adopted, and the sense of density and glossy tone unique to pure A grade has been refined. The exterior has scratches etc. on the upper front, and there is a feeling of use. Serial G50900145 (Tomoho Asaine)
Maintenance information: 2024.4.2 operation confirmed
Accessories: instruction manual copy remote control power cable
Main specifications: pure A grade premain amplifier rated output 30W+30W (8Ω), 60W+60W (4Ω) input/line 4 systems, 1 phono system (MM/ MC switching), balance line 2 systems, recording input/output 1 system, separate input/output 1 system, speaker output A/B2 system (AB simultaneous output possible), damping factor 320 W440 x H193 x D463 mm 28.4 kg
The price has been reduced. 2024/4/3 sales price 128,000 yen with original box A convincing volume feeling where the sound comes forward. A pure sound reproduction system premain amplifier that omits a tone control circuit. It uses a large 300VA R-Core transformer used in high-grade medical equipment, and has a firm core and reproduces highly transparent sound. There is a scratch near the corner of the front panel, and there is a small scratch around the volume (Oikawa Tetsuji)
Maintenance information: 2024.4.2 operation confirmed
Accessories: instruction manual, power cable, original box
Main specifications: Phono equalizer circuit (MM) equipped with 40W+40W (8Ω) 68W+68W (4Ω) frequency characteristics/5Hz to 100kHz input sensitivity/impedance/phono 2.5mV/47kΩ line 180mV/47kΩ W425 x H87 x D395 mm 10.5 kg
Vacuum tube Primaine made in China is in stock for the first time at Hi-Fi. Smooth and rich sound quality unique to 300B push-pull amplifiers. The sufficient output of 21W is reflected in sound quality, and the driving power is strong and the powerful sound is attractive. While the content is simple with 1 input system+Bluetooth, you can enjoy music with the thickness and suppleness unique to vacuum tubes. The exterior is good with no conspicuous scratches (Satoshi Yonejima)
Maintenance information: 2024.4.2 operation confirmed
Accessories: power cable
Main specifications: 21W+21W Bluetooth compatible W305 x H310 x D550 mm (actual size) 34,2 kg
Maintained. This is the top model of the TA-F333 ESX, which gained popularity due to its volume input. The weight has doubled from the predecessor 555ES, and the thick bass is unique to this era. Neutral characters that are easy to match with various genres such as vocal sources, jazz, and pop are also attractive. The wood cab has chipped corners and broken veneer (Oikawa Tetsuji)
Maintenance information: 2024.4.2 maintained (volume VR replaced due to sound (custom order), speaker relay replaced due to sound interruption, 14 locations replaced due to poor resistance in other boards, application of disassembly contact polishing grease at 2 locations of other INPUT selectors, application of cartrich LOADSW disassembly contact polishing grease, DC idling DC balance adjustment, inspection of solder cracks on each board, inspection of other changeover switches, etc.)
Accessories: copy of instruction manual
Main specifications: 120W+120W (8Ω) W470 × H165 × D435 mm 26 kg
Maintained by Luxman! This is a pure Class A premain amplifier that combines subtlety and strength. The sound unique to Lux Class A amplifiers, which is smooth, glossy, and has a sense of scale, is attractive. The low frequency playback also has a sense of volume, and it has a reputation for being compatible with European speakers such as TANNOY. There is a feeling of use over time, but there are no noticeable scratches (Sasaki Shota)
Maintenance Information: 2024.3.29 Manufacturer Maintained (Speaker Terminalum Contact Cleaning. (Internal cleaning, general adjustment)
Accessories: copy of the manual
Main specifications: 50W+50W (8Ω), pure A class operation, equipped with a high-capacity toroidal transformer, phono equalizer, MM/MC compatible, W438 x H176 x D467, 30 kg
※Since it is cheap, it will be handed over as is. Bluetooth-compatible CD receiver with discrete amplifier. Wireless connection with Bluetooth compatible devices is possible. There are also 2 optical digital audio inputs that can be connected to a TV or digital device, making it easy to use in the living room. The appearance is good with little feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.3.30 Operation confirmed
Accessories: remote control, instruction manual, antenna, power cable
Main specifications: output 30W+30W input analog audio, light x 2 output, subwoofer output, 1 headphone each W210 x H115 x D309 mm, mass 4.2 kg
The price has been drastically reduced! 2024/3/27 sales price 250,000 yen Esoteric Company limited edition of 400 units! This pre-main amplifier is famous as a reference for Tannoy. It's simple and easy to handle, and you can enjoy the moist sound of the vacuum tube. There are line marks on the side of the exterior (Oikawa Tetsuji)
Maintenance information: 2024.3.27 Operation confirmed
Accessories: power cable, instruction manual, original box
Main specifications: 6L6GC vacuum tube, ECC82/83, output 18W+18W (8Ω), compatible impedance 8 to 16 ohms, W320 x H203 x D328 mm, 17.5 kg
※There is a slight gap in the balance volume at present. Has been inspected by the manufacturer. Denon's flagship pre-main amplifier. The biggest feature is the mid-low range, which is full of energy, supported by a strong power supply unit. The driving power that drives a large speaker briskly is of a quality close to that of a separate amplifier. The exterior has small dents on the top surface, abrasions on the volume, and other dullness. Serial 4041500299 (Murakoshi Yoichi)
Maintenance information: 2024.3.28 manufacturer inspection (The installation of the volume volume has been corrected. Operation test OK)
Accessories: instruction manual
Main specifications: UHC-MOS single PP 50W+50W (8Ω) line input 5 systems (XLR x 1, RCA x 4) tape system 2 systems phono (MM) 1 system W434 x H155 x D493 mm 25.5 kg
Comes with original box! Soulnote 10th anniversary model pre-main amplifier. A newly developed relay attenuator system is used to adjust the volume instead of the conventional volume electronic volume with a rotating slider. It is a popular premain amplifier for JAZZ and ROCK fans, with a sense of power and excellent resolution in the mid to low range. There are no noticeable scratches (Sasaki Shota)
Maintenance information: 2024.3.29 Operation confirmed
Accessories: original box, remote control, manual, power cable
Main specifications: output 80W x 2ch (8Ω) 120W x 2ch (4Ω) W430 x H109 x D418 mm (when spikes are attached) weight approx. 10.0 kg
The disposal price has been reduced. Member discounts are not applicable. 2024/3/21 sales price 128,000 yen Maintained! This amplifier marked the end of the X series, which began with the AU-X1. It is a model with a weight of 35 kg and a solid investment in material volume. You can enjoy a powerful Sansui sound with full torque. Sidewoods are non-genuine products. There are several bruises and letter rubbing on the front panel and side panels (Murakoshi Yoichi)
Maintenance information: 2024.3.16 maintenance (phono circuit relay, power amplifier volume, selector lamp, power switch, power amplifier circuit transistor replacement, equalizer IC, power supply unit floating resistor replacement. Speaker, power amplifier operation, jump, subsonic, MM/MC switching SW disassembly polishing grease application, power amplifier, power supply part solder repair, pin jack polishing, interior and exterior inspection and cleaning, operation confirmation)
Accessories: copy of instruction manual
Main specifications: effective output 150W+150W (6Ω), 110W+110W (8Ω) dimensions W470 x H178 x D486 mm weight 35.1 kg
The price has been drastically reduced! 2024/3/25 sale price 798,000 yen beautiful item! This current premain amplifier is the ultimate in Technics' digital technology. Equipped with a DAC, it is also possible to directly connect digital devices. What is noteworthy is record playback that makes full use of digital technology, and it is equipped with the Intelligent PHONO EQ, which is an innovative phono equalizer that can reproduce the original sound quality of the cartridge by correcting the cartridge's crosstalk and peak with DSP. The innovative and powerful power supply unit realizes majestic, energetic playback sound with high resolution and excellent driving ability for speakers. The exterior is beautiful with no conspicuous scratches (Shota Sasaki)
Maintenance information: 2024.3.24 Operation confirmed
Accessories: remote control, manual, power cable
Main specifications: rated output 150 W+150 W recommended load impedance 4 ohm to 16 ohm frequency characteristics PHONO (MM) 20 Hz to 20 kHz line 5 Hz to 80 kHz digital 5 Hz to 80 kHz power supply AC 100V 50/60 Hz W430 × H191 × D459 mm weight 22.8 kg
Maintained! A pre-main amplifier that allows you to enjoy the glossy and thick sound typical of Sansui. What is noteworthy is the mid-low range, and the bass line, which clearly reveals the outline, is an appeal unique to the KX series during this period. There are scratches on the exterior. Serial 613070649 (Yonejima Satoshi)
Maintenance information: 2024.3.12 maintained (volume knob installation correction, input selector, power amplifier direct, source direct, tape, tone, loudness, muting switch disassembly, polishing grease application, solder main part repair, volume, switch cleaning, output relay replacement, retightening each screw, internal inspection and cleaning, operation confirmation)
Accessories: copy of instruction manual
Main specifications: 90W+90W (8Ω) phono mm/MC compatible dimensions W430 x H161 x D446 mm weight 18.0 kg
Maintained in 2023/8. The first model in the α607 series. It is characterized by clear, clear 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 with its high cost performance. There is a feeling of use on the exterior, small scratches, rust, SP terminal discoloration, etc. (Kobayashi Hitoshi)
Maintenance information: 2023.8.1 maintained (May amp circuit transistor replacement, master volume replacement, output relay replacement, solder repair, MM/MC switch disassembly, polishing grease application, cleaning of each volume switch, internal inspection and cleaning, adjustment inspection, operation confirmation)
Accessories: copy of instruction manual
Main specifications: 105W+105W (6Ω) 90W+90W (8Ω) W448 × H160 × D441 mm 15.7 kg
A new-generation digital premain amplifier that combines CSR's digital amplifier “DDFA (Direct Digital Feedback Amplifier)”. Compared to conventional Class D amplifiers, even higher S/N and lower distortion have been achieved. In particular, the USB-DAC supports DSD 5.6 MHz and PCM192 kHz/24 bit inputs, and its sound quality is more realistic than other digital amplifiers. It is also compatible with Airplay via Bluetooth connection. The exterior is dull (Kobayashi Hitoshi)
Maintenance information: 2024.3.15 sound output confirmed
Accessories: remote control, instruction manual, power cord, terminal cover
Main specifications: USB-DAC premain amplifier 25W+25W (8Ω), 50W+50W (4Ω) input USB Type-B, line RCA, coaxial, 1 Bluetooth system each, TOS2 system W200 x H86 x D258 mm weight 2.5 kg
The disposal price has been reduced! (Member prices are not applicable) 2024/3/1 sales price 448,000 yen Internal overhauls such as capacitor replacement have been completed! 220V Quad vintage pre-power system with 100-220V step-up transformer The thickness, luster, and tension of the sound are all emotionally composed, and perfectly express the sound of the instrument. Anyway, it has thick, firm mid-bass, and the tasteful sound unique to vacuum tubes is impressive. The exterior has dullness, stains, scratches, etc. Serial 45808/26904/25186 (Tamura Eiji)
Maintenance information: 2023.12.27 Maintained (power transformer rewound repair. Common resistance: 3 W and 1 W deterioration replacements x 2 QUAD22 switch cover added and 2 deteriorated replacements. Replace 3 block capacitors with 22 μF electrolytic capacitors. Replace 2 Mylar capacitors with 5600 pF deterioration. Balance volume exchange. 6 1W resistors and 1/2W deterioration replacements CD input countermeasure → 4 additional 1/2W resistors for Radio1 only. Vacuum tube socket and RCA jack caulk repair. Operation has also been checked with AC 220V (measured at rated output 25W SP: 8Ω)
Accessories: copy of instruction manual, power cable, 220V step-up transformer
Main specifications: [QUAD22] EF86 × 2 ECC83 × 2 input PHONO, RADIO, TAPE W267 × H89 × D148 mm 3.2 kg [QUAD2] KT66 × 4 EF86 × 2 GZ32 15W+15W W321 × H162 × D119 mm 8.2 kg/unit
The price has been drastically reduced. 2024/3/21 sales price 228,000 yen This amplifier was planned to commemorate the 35th anniversary of Aura Design. This anniversary model, which bears the VA40 of the first model, is a model that faithfully reproduces the circuit design at that time. The MOSFET single push-pull reproduces fresh sound. This model will be a domestically manufactured model. The exterior is beautiful with no noticeable scratches. Serial ARI0018 (Tamura Eiji)
Maintenance information: 2024.3.21 operation confirmed
Accessories: instruction manual, power cable, original box
Main specifications: 50W+50W (8Ω) W430 x H76 x D350 mm weight 7.2 kg
Maintained! 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. The exterior has a feeling of use over time, with dullness and small scratches scattered around. ※The side panel has been repaired with veneer, but there are floats and cracks. Serial 622093718 (Yonejima Satoshi)
Maintenance information: 2024.3.24 Maintained (Mayi amplifier circuit transistor, diode replacement. Adjust volume, replace output relay. Hendphone relay replacement. Power supply transistor replacement. Disassemble the input selector and other switches and apply polishing grease (turnover, tone, muting, loudness, subsonic, processor, MM/MC switching, power amplifier direct, source direct, reck-out, tape). Solder repair. Each volume, switch cleaning. Internal inspection and cleaning. Mounting screw rust remover. Bias, DC adjustment, operation confirmation. Decorative panel repair. (Adhesive repair with bond G17)
Accessories: copy of instruction manual
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
A pre-main amplifier equipped with a DSD Hi-Res compatible USB-DAC. Compatible with modern listening styles, such as enhanced support for network players and streaming. It is a smooth sound rich in spatial expression with good visibility. Serial AHX15210806420 (Murakoshi Yoichi)
Maintenance information: 2024.3.22 sound output confirmed
Accessories: instruction manual (easy start guide only), power cable, remote control, original box
Main specifications: rated output 70W+70W (8Ω), 140W+140W (4Ω) input terminal unbalance x 3, PHONO (MM/MC) digital input USB-B, 1 coaxial system each, light x 2 W434 x H135 x D410 mm 17.6 kg
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. There is room not found in lower models, and you can enjoy the sound with a sense of scale typical of SANSUI. As for the exterior, there is a scratch on the top plate. Serial 611088582 (Yonejima Satoshi)
Maintenance information: 2024.3.21 maintained (tone and other switches dismantled and polished with grease applied (turnover, subsonic, muting, loudness, processor, input selector, reck-out, power supply direct, source direct, tape, MM/MC changeover switch), power amplifier, power circuit transistor, resistor, adjustment volume, diode replacement, solder repair, each volume, switch Cleaning, output relay, headphone relay replacement, DC, bias adjustment, interior and exterior inspection cleaning, operation confirmation)
Accessories: copy of instruction manual
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
The disposal price has been reduced! (Member discounts are not applicable) 2024/2/20 sales price 780,000 yen 95th anniversary model limited to 300 units in Japan! It is a pure Class A amplifier with the motif of the best-selling model L-570 of yesteryear, and combines the quality of a separate amplifier with the high functionality of a pre-mainamp in one body. It is generally in good condition with no conspicuous scratches. Serial G01200055 (Jun Tamai)
Maintenance information: 2024.2.20 sound output confirmed
Accessories: remote control instruction manual power cable (JPA-15000)
Main specifications: rated output 30W+30W (8Ω) 60W+60W (4Ω) W454 x H186 x D462 mm 27.7 kg
Maintained! Luxman vintage premain amp. Thick, extruded, and warm sound quality. It also has a glossy color and a good sense of tone, which is also attractive. It also has the driving power unique to solid states. There are stains and small scratches throughout the exterior. (YONEJIMA Satoshi)
Maintenance information: 2024.3.20 Maintained (switch disassembly, contact polishing and contact cleaner applied. In-circuit deterioration transistor replacement. (I/O pin jack polish)
Accessories: No accessories
Main specifications: 75W+75W (8Ω) output bandwidth 5 to 50,000 Hz LUX method NF type curved point frequency switching tone control W485 x H165 x D300 mm 15.5 kg
Maintained! The A-2000 is equipped with Yamaha's unique RICHNESS circuit. Settings can be made by switching between speakers, such as the company's NS-2000 or 1000M. The low frequencies with a rich sense of scale and the transparent sound typical of Yamaha are attractive, and the extravagant structure typical of the bubble period is directly linked to the sound. There are many scratches on the exterior, corrosion on the switch, and overall there is dullness (Oikawa Tetsuji)
Maintenance information: 2024.3.20 Maintained (Speaker terminals are processed and attached to something that can be obtained. CD input pin jack replacement. Other pin-jack dents etc. were disassembled and reworked. Disassemble the switch and volume contacts, polish them and apply contact cleaner. (Corrected soldering on all boards including the main amplifier board, equalizer board, etc.)
Accessories: instruction manual
Main specifications: 130W+130W (8Ω) richness circuit frequency characteristics 5Hz to 100kHz W473 x H169 x D464 mm 26 kg
Maintained by the manufacturer! Tubular pre-main amplifier using EL34. It has a transparent, glossy tone unique to tube amplifiers, and a modern sense of wide range and response. It has an attractive sound that is a bit different from transistors, and it is also recommended as an introduction to vacuum tube amplifiers. Serial 4033831 (Yasuhito Koshihama)
Maintenance information: 2024.3.13 Triode maintenance completed (volume replaced, selector contact sliding surface cleaned, all parts inspected, audition tested, and aging performed)
Accessories: power cable
Main Specifications: Ultra Linear Connection Class AB Push Pull Drive Rated Output 45W+45W (8Ω) Vacuum Tube EL34 x 4, 12AX7 x 1, 12AU7 x 2 Speaker Output Terminals 6Ω, 8Ω Input 4 Systems W330 x H150 x D315 mm 15 kg
The disposal price has been reduced! (Member prices are not applicable) 2023/12/21 sales price 198,000 yen ※Changed from 220V specification to 100V specification! A consumer premain amplifier designed by the rare German commercial audio brand K+H. It makes me listen to a wonderful sound with a sense of subtlety, warmth and smoothness. There are spots and small scratches on the exterior (Wang Zhan)
Maintenance information: 2023.12.20 Maintained (all internal capacitors have been replaced. Operation was confirmed at 220V, and the input DIN plug was created with a 20cm cable with a female pin jack)
Accessories: input cable, speaker cable included
Main specifications: 100V specification input: 3 systems (PHONO, radio, tape) rated output 60W (maximum 90W) W412 x H110 x D265 mm approx. 7 kg
Maintained! A limited production model with a monthly production of 300 units with improvements based on the Integra A-927. This is a car with an honest and clear sound that makes you feel the uniqueness of Onkyo. You can see a feeling of use, such as appearance, dullness, small scratches, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2024.2.4 maintenance completed (INPUT switch/balance switch and other switches disassembly contact polishing, contact cleaner application, main amplifier board and other solder modifications)
Accessories: instruction manual, power cord
Main specifications: 95W+95W (8Ω) W445 x H165 x D436 mm 19.5 kg
Maintained. Sony's pre-main amplifier that uses a G chassis with excellent vibration isolation. The sense of stability that comes from a solid structure that holds down the basics and the neutral sound without coloring typical of Sony are attractive. There is a slight line scratch on the front panel on the exterior ※The remote control is out of stock (Sasaki Shota)
Maintenance information: 2024.3.17 maintained (all 8 repair speaker terminals have been processed and replaced) 2023.8.10 maintained (MUTING switch replaced due to poor contact, other internal INPUT switching SW, speaker relay replacement with poor contact, Cartrich LOAD changeover switch, direct INPUT changeover switch, disassembly contact polishing contact grease will be applied, DC bias DC balance (Adjustment, board solder crack inspection, solder repair, confirmation that each input/output connection is making sounds)
Accessories: manual
Main specifications: Phono (MM/MC compatible) 100W+100W (8Ω) dimensions W470 x H165 x D435 mm weight 21.3 kg
Maintained! A compact, yet high power premain amp built with the aim of high quality. The natural, clean tone typical of Yamaha is attractive. Overall there is dullness, dirt, and line damage on the top plate (Daiki Goto)
Maintenance information: 2024.3.9 Maintained (replacement of deteriorated IC in tone control circuit. Polish all slide volumes and remote wire switch disassembly contacts and apply contact cleaner. Main board power supply circuit and other circuit board soldering fixes. (Disassemble and clean panels, etc.)
Accessories: none
Main specifications: 120W+120W (8Ω) dimensions W435 x H133 x D365 mm weight 10.3 kg
The price has been reduced. 2024/3/15 Sales price 158,000 yen Maintained by the manufacturer! The 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 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 (Takasaki Atsushi)
Maintenance information: 2024.3.12 manufacturer maintenance completed (relay replacement, volume exchange, capacitor replacement, selector switch contact cleaning, lamp replacement, general adjustment)
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
Genuine AXISS A slim and compact KRELL pre-main amplifier. Although it is a small model, it has a sense of speed and depth, yet it plays a smooth and transparent sound typical of KRELL. The exterior has paint peeling off on the back of the remote control, and there are small scratches etc. on the main body. Serial 17804060870 (Yonejima Satoshi)
Maintenance information: 2024.3.16 Operation confirmed
Accessories: remote control, power cable
Main specifications: 200W+200W (8Ω) W440 × H89 × D432 mm 14.1 kg
Maintained! 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. There are small scratches and rust spots on the exterior. Serial 228071488 (Yonejima Satoshi)
Maintenance information: 2024.2.1 Maintained (replacement of some defective parts, repolishing of SW/VOL disassembly contacts, application of grease to prevent oxidation and sulfidation. Input/output waveform check, sound output test) 2015.9.19 maintained (transistor, dyed, heat dissipation sheet semi-fixed resistor, capacitor RCA terminal replacement, board component re-soldering, SW/VR cleaning, offset, idle measurement adjustment, input/output waveform confirmation, sound output test OK)
Accessories: copy of instruction manual
Main specifications: 65W+65W (8Ω) W430 × H168 × D389 mm 15.3 kg
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 to easily drive a medium bookshelf speaker is truly amazing. There are small scratches on the exterior. Serial 606070999 (Sato Wataru)
Maintenance information: 2024.1.20 maintained (source dial switch disassembly polishing grease application (power amplifier direct, tape, input selector, reck-out, tone, loudness, subsonic), output relay replacement, muting circuit capacitor replacement, main solder part repair, interior and exterior inspection, adjustment inspection)
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
※It is cheap because it has many scratches. Maintained. A thin premain made in the UK. Equipped with a phono (MM) in a space-saving size, it is a model that shines with its ease of use and high cost performance. There is a scratch on the front panel*Please note that the volume cannot be controlled with the remote control since it has been replaced with an alternative volume (Oikawa Tetsuji)
Maintenance information: 2024.2.6 maintained (volume is confirmed, volume is replaced with an alternative volume (volume cannot be changed with the remote control because of VR without an electric motor) TAPE, DIRECT, SP2, and PHONO exchanges due to jerky sound of each other push switch
We will replace poor contact with other speaker relays, check and adjust other idling, and check the sound output for each input/output connection. (After repair, you will not be able to change the volume by operating the remote control)
Accessories: power cord, remote control, original box
Main specifications: 50W+50W (8Ω) W430 × D330 × H85 mm 5.4 kg
Maintained in August 2023! The first model in the α607 series. It is characterized by clear, clear 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 with its high cost performance. There is a feeling of use such as small scratches, rust, and discoloration of the SP terminals. Serial 436105068 (Mizushima Itsuro)
Maintenance information: 2023.8.1 maintained (May amp circuit transistor replacement, master volume replacement, output relay replacement, solder repair, MM/MC switch disassembly, polishing grease application, cleaning of each volume switch, internal inspection and cleaning, adjustment inspection, operation confirmation)
Accessories: copy of instruction manual
Main specifications: 105W+105W (6Ω) 90W+90W (8Ω) W448 × H160 × D441 mm 15.7 kg
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 to easily drive a medium bookshelf speaker is truly amazing. The exterior has a feeling of use such as dullness and abrasions (Kobayashi Hitoshi)
Maintenance information: 2024.3.12 maintenance completed (source direct, etc., switch dismantling and polishing grease application (power amplifier direct tape input selector, reckout tone, loudness, MM/MC switch), output relay replacement, relay circuit part capacitor replacement, solder main part repair, each master volume other volume switch cleaning, internal inspection and cleaning, operation confirmation)
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
Maintained by Denon! Denon's mid-tier Primain second-generation model. A sound with firm lines with a sense of stability that further pursues “subtlety” and “strength” from the first generation. It is compatible with various speakers, and the biggest appeal is the sense of energy in the mid to low range, which surpasses the 2000 number in recent years. It is an easy-to-use model that is compatible with both records and MM/MC. There are scratches and dirt on the exterior. Serial 9027302674 (Yonejima Satoshi)
Maintenance information: 2024.3.6 manufacturer maintained (main volume installation fix. Selector switch disassembly contact cleaning. (Idle current adjustment, operation inspection implementation)
Accessories: instruction manual, power cable
Main specifications: 80W+80W (8Ω) PHONO (MM/MC switching) LINE 6 system W434 x H180 x D478 mm 22 kg
The price has been drastically reduced. 2024/1/30 Sales Price 46,800 yen An introductory model of Denon's current premain amplifier. Equipped with a Bluetooth function, it is possible to play content from smartphones, etc. In addition to 4 analog inputs and a Phono input compatible with mm cartridges, it is a high CP model equipped with 1 coaxial digital input and 2 optical digital inputs, and a full range of input terminals even though it is an entry model (Kojima Yosuke)
Maintenance information: 2024.1.28 Operation confirmed
Accessories: remote control, instruction manual, original box
Main specifications: rated output 45W/8Ω/70W/4Ω compatible impedance 4Ω to 16Ω playback frequency band 5Hz to 100kHz W434 × H122 × D307 mm 7.4 kg
Maintained! A rare Mclntosh tubular premain amplifier. Even with the same Mackin, they are a bit different from transistor amplifiers, and the thick, glossy sound is just like the American sound of the 60s. This is a superb item that you would like to pair with vintage speakers. The exterior is generally good. Serial 49C44 (Yasuhito Koshihama)
Maintenance information: 2024.3.13 maintained (· fuse defect replacement · each switch and selector contact failure repair · 8 100 μF and other defective and deterioration replacements · 2 block capacitors 40 μF x 3 other deterioration replacement · vacuum tube 7591 deterioration replacement · BIAS and AC BAL. readjustment · vacuum tube socket and RCA jack caulking repair
*Other operation checks have been performed (measured at 23 to 36 W SP: 8 ohms with rated output AC100 to 117 V) *2 block capacitors have been replaced with MEPCO products by other companies)
Accessories: none
Main specifications: output 30W x 2 (4/8/16Ω) vacuum tube 7591 x 4, 12AU7 x 2, 12AX7 x 1 RCA3 system Phono (MM) 2 system SP terminal 1 system W407 x H138 x D302 mm 19.5 kg
The disposal price has been reduced. Member discounts are not applicable. 2024/3/3 sales price 448,000 yen Maintained! Levinson's long-selling pre-main 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. You can see a feeling of use, such as appearance, dullness, abrasions, scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2024.3.3 Maintained (replace deteriorated parts. DC voltage/DC offset voltage/idling current/other inspection adjustments)
Accessories: remote control, instruction manual, power cord
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
Maintained. Pioneer's best pure Class A operation premain amplifier. This model uses a symmetrical twin-mono structure and achieves ideal physical characteristics. The silky, elastic mid and low frequencies and bright, soft high frequencies that follow the flow of the Exclusive power amplifier are exquisite. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.3.11 maintenance completed (solder correction for all bottom boards due to solder cracks in the board at the bottom of the main unit, mounting and fixing a pure copper plate for braking on the back of the voltage amplifier box top plate, removing the upper voltage amplifier box with partial rear panel solution, fixing solder cracks on the back of the power amplifier voltage amplifier board, complete disassembly contact cleaning and polishing after removing the attenuator, anti-oxidation treatment, idle current adjustment)
Accessories: copy of instruction manual
Main specifications: rated output 35W+35W (8Ω), 70W+70W (4Ω) size W440 x H198 x D480 mm weight 28.8 kg
Maintained! It is the 5th generation of the 907, the top model in the D series that continues to be popular. Brush-ups have been made, such as strengthening the power supply section from the previous game, and the ability to reproduce the low frequency range has been improved. Precision is also added to the wild Sansui sound that feels torque, making it fun to listen to classical music. There is a feeling of use such as scuffs and dullness. Serial 435110646 (Takasaki Atsushi)
Maintenance information: 2024.3.8 maintenance (master volume, output relay, power amplifier circuit adjustment volume, protector transistor replacement, input selector switch disassembly, polishing grease application, solder repair, MM/MC switch, reck-out, tone, subsonic, muting, CD direct switch disassembly and polishing grease application, interior and exterior inspection and cleaning, pin jack polishing, and other volumes and switches Cleaning, adjustment inspection, operation confirmation. (*It takes about 15 to 20 seconds for the relay to operate)
Accessories: instruction manual (copy)
Main specifications: 160W+160W (8Ω) PHONO (MM/MC) compatible W466 x H161 x D431 mm 26 kg
The price has been reduced. 2023/11/17 sales price 59,800 yen Marantz middle class premain amplifier. It excels in the elongation and subtlety of the treble, and the thickness of the mid-range sound has been added to make the sound quality satisfying to listen to. It's versatile and easy to use regardless of music genre. There is a feeling of use such as line damage, stains on the front panel, and dullness. Serial 15001543001972 (Takasaki Atsushi)
Maintenance information: 2023.11.17 Operation confirmed
Accessories: remote control, manual, power cord
Main specifications: rated output 70W x 2 (8Ω), 100W x 2 (4Ω) frequency characteristics 5Hz to 100kHz W440 x H128 x D379 mm 12 kg
Maintained! A pre-main amplifier with a built-in McIntosh traditional output transformer. You can enjoy the rich and rich sound world typical of Macintosh. This is one that combines the appeal of the sounds of modern and old McKinn. The sense of power that makes you feel the strength is similar to that of a separate amplifier. The exterior is dull and has small scratches. Serial JMC1529 (Yonejima Satoshi)
Maintenance information: 2024.3.6 Maintained (panel lamp, electrolytic capacitor, and urethane foam sheet replaced. Meter front glass fog removal cleaning Each volume can be removed for cleaning. Solder correction. Connector cleaning RCA jack cleaning Increase and tighten the screws. Bias and offset checks. (Voice check for each input/output)
Accessories: remote control (replacement), instruction manual
Main specifications: 150W+150W (8/4/2Ω) phono input MM dimensions W445 x H179 x D508 mm weight 30 kg
The disposal price has been reduced! (Member discounts are not applicable) 2024/3/2 sales price 128,000 yen Maintained! This is a Rotel pre-main amplifier with a built-in D/A converter. It comfortably sounds modern sources with delicate and highly transparent sound quality. It is a convenient product that can also be used for high quality playback for display, with a wide selection of 3 types and 6 systems of D/A inputs. There are small scratches and dullness on the exterior. Serial 702-3 181035 (Jun Tamai)
Maintenance information: 2024.3.2 maintained (all 18 buttons replaced, FUSB not working, board replacement, speaker A/B co-output instability, especially LCH speaker relay contact deterioration, main software update (V115 → V138), FUSB software update (A500BT → A507BT), pop sound reduction implementation when using TONE, etc. confirmation)
Accessories: remote control instruction manual power cable
Main specifications: built-in D/A converter (optical coaxial USB) rated output 120W+120W W431 x H150 x D350 mm weight 13.7 kg
*The 2ch sound output is OK, but the video system has not been checked, and it is currently on sale. 9.2ch processing-compatible AV surround receiver. Flexible amplifier assignment is possible according to the configuration of the speakers, power amplifiers, etc. to be used. The built-in amplifier drives a 7.1 channel system including a surround back, and while the height speaker signal can be pre-output, the built-in amplifier can also be assigned to a surround back or height speaker to pre-out the front speaker signal (Oikawa Tetsuji)
Maintenance information: 2024.3.6 operation confirmed (2ch sound output OK, video system not checked)
Accessories: remote control, power cable, bluetooth antenna
Main specifications: rated output 8Ω 20Hz to 20kHz THD 0.05% front 125W+125W center 125W surround 125W+125W surround back 125W+125W external dimensions W434 x H236 x D389 mm mass 12.6 kg