Maintained by Electri, including replacing the windshield panel with a new one! 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 sound appeal 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. Serial JLF1440 (Fujisawa Yukishi)
Maintenance information: 2024.3.28 manufacturer maintained (windshield panel replacement. Replace the Oring to fix the switch bezel. Due to a problem with the operational amplifier, characteristics were poor, and the voltage was unstable, so a lot of pop noise was generated when the front volume display was off. IC exchange. Capacitors were replaced at various other locations. Replaced due to filter capacitor deterioration. Other relays, transistors, etc. have been replaced just in case, but please be aware that the pop noise of this unit is difficult to completely remove due to product specifications, so it can be heard slightly depending on when the power is turned on. Replace all front lamps. Lamp fixing grommet replacement. There is a difference in meter runout when the volume is low, but when the output is raised about 3/4, the difference is not very noticeable. Due to specifications due to individual differences in parts, improvements are difficult, so adjustments have been made so that they fit at a position of approximately half a meter. Same confirmation and other inspections.)
Accessories: remote control, instruction manual
Main specifications: 150W+150W (8/4/2Ω) phono input MM dimensions W445 x H179 x D508 mm weight 30 kg
※The remote control is missing, and there is noticeable discoloration on the side, so it's cheap. Marantz's premain amplifier with an attractive, thin, and stylish design. It is a best-selling machine that has a delicate mid-high range and a well-balanced low range. Combinations with Scandinavian bookshelf speakers are also a good match, so you can choose any music genre. The exterior has stains, line scratches, and paint bald spots on the sides. Serial MZ00984231004 (Sato Wataru)
Maintenance information: 2024.3.26 Operation confirmed
Accessories: power cord
Main specifications: 60W+60W (8Ω), 4 line inputs, 1 phono input system (MM/MC switching), 2 tape systems, with pre-out terminals, W458 x H110 x D444 mm, 15 kg
※Operation has been confirmed, but since it is cheap, it will be handed over as is. This is a KENWOOD KA series amplifier. It has a compact and clean design, and can be placed horizontally or vertically. The sound quality is as clean as it looks, and it is recommended for those who want to enjoy music in a small space. Serial 61100061 (Sato Wataru)
Maintenance information: 2024.3.26 Operation confirmed
Accessories: No accessories
Main specifications: 3 input lines 12W+12W (8Ω) dimensions W171 x H67 x D207 mm weight 2 kg
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
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 707 series plays a central role in Sansui. The PHONO2 system is compatible with MM/MC on both sides, and since it is compatible with all MC cartridges, it is a great product that can switch between 2 levels of impedance: low and high. This is an amplifier I definitely want you to listen to records to your heart's content. The exterior has dullness, scratches, and dirt. Serial 823050972 (Tamura Eiji)
Maintenance information: 2024.3.10 maintained (input selector, reck-out, tone switch disassembly, polishing grease application, master volume replacement, output relay, headphone relay replacement, main amplifier transistor, adjustment volume replacement, power supply floating resistor replacement, solder repair, each volume, switch cleaning, pin jack polishing, interior and exterior inspection and cleaning, offset, bias (Adjust, check operation)
Accessories: No accessories
Main specifications: 110W+110W size W460 x H160 x D404 mm weight 15 kg
Maintained! ONKYO premain amplifier with high cost performance. A non-feedback power amplifier is used, and the power supply transformer is of high quality and carefully crafted. The power amplifier direct position allows direct input to the power amplifier via volume only. The exterior is dull. Serial 4604014114 (Yonejima Satoshi)
Maintenance information: 2024.2.15 Maintained (input selector, direct switch, etc. Switch disassemble contacts, polish contacts and apply contact cleaner. Main amplifier circuit input circuit soldering correction)
Accessories: instruction manual
Main specifications: 100W+100W (8Ω) PHONO input 1 system (MM/ MC switching) W445 x H165 x D434 mm 18.0 kg