* Although it can be operated with a remote control, it is inexpensive because it makes abnormal noise when operating the volume, and is currently sold. Entry machine for Marantz primain amplifiers. You can enjoy good sound in a compact size with a smart design and well-balanced sound quality. There are scratches around the volume (Oikawa Tetsuji)
Maintenance information: 2024.4.1 operation confirmed (can be operated with a remote control, but it makes an abnormal noise when operating the volume)
Accessories: remote control, instruction manual
Main specifications: rated output 40W+40W (8Ω) line input/3 systems (CD, TUNER, AUX/DVD), tape input/output/2 systems (RECORDER 2 systems) dimensions W440 x H117 x D341 mm weight 6.6 kg
A low price pre-main amplifier that allows you to enjoy Marantz-like sound. How about it as an introduction to audio or as a subsystem, etc. There is a feeling of use such as scratches and dullness
Maintenance information: 2024.4.1 operation confirmed
Accessories: remote control, instruction manual, power cable
Main specifications: W440×H124×D340 mm 7.5 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 reduced. 2023/9/27 sales price 45,000 yen*The volume on the remote control cannot be controlled. Maintained! A small gap appears when switching between source direct SW, but this is the current situation. Maintained! A pre-main amplifier that allows you to enjoy tight low frequencies and extended high frequencies. It lets you listen to a performance that is faithful to the sauce and has no unnecessary flavorings, so it is compatible with any genre. The clean design fits well into the room. Serial 201711 (Murakoshi Yoichi)
Maintenance information: 2023.9.26 maintained (replacement VR, speaker relay, MUTING switch, power supply resistance 120Ω replacement, various board dirt cleaning and solder repair, function electric SW, direct SW disassembly contact cleaning, other DC bias DC balance adjustments.)
Accessories: remote control, instruction manual (copy)
Main specifications: 100W+100W (8Ω) line input, 3 tape systems, PHONO (MM/MC), W470 x H170 x D435 mm, 21.3 kg
※It smells like air freshener, so it's cheap. Marantz pre-main amplifier with excellent cost performance. The sturdy, heavy construction is unique to the heyday of audio. Class A operation can be switched, and both design and sound quality are unique to that time (Yasuhito Koshihama)
Maintenance Information: 2020.4.4 Maintained (Confirmation Symptom: The power does not turn on. Action: Power supply board repair correction. Fixed due to soldering deterioration in the main amplifier circuit and other circuit boards. Remote wire switch disassembly contact polishing. Bad output relay contact replacement. (I/O pin jack polish)
Accessories: none
Main specifications: 20W+20W (when grade A) 100W+100W (when AB grade) W454 x H165 x D380 mm 17.5 kg
Maintained. The successor that inherited the sound of the D series. A model where you can feel the uniqueness of Sansui at the time due to the extrusion of low frequencies and the creation of sound. They are energetic, playable, and go great with jazz and rock, and are compatible not only with MM but also with MC, making analog fans happy. There is dirt on the top plate (Sasaki Shota)
Maintenance information: 2024.2.8 maintained (main amplifier circuit transistor, film capacitor, DC, bias semi-fixed volume replacement, output relay replacement, power supply circuit floating resistor replacement, balance volume exchange, input selector, reck-out, tone switch disassembly polishing grease application, each volume, switch cleaning, interior and exterior inspection cleaning, pin jack polishing, adjustment inspection)
Accessories: none
Main specifications: execution output 80W+80W (8Ω) damping factor 100 rated power consumption 200W phono MM/MC compatible W460 x H160 x D404 mm weight 13.2 kg
Maintained! A pre-main amplifier with Class A operation that allows you to enjoy sharp sound. The moderate amount of extrusion is comfortable, and this model is suitable for jazz and rock. The exterior has small scratches and dullness appropriate for the model year (Daiki Goto)
Maintenance information: 2024.1.22 maintained (balance volume (replacement) replacement, output relay replacement, input selector, reck-out, MM/MC switching, MONO, loudness, CD direct switch disassembly polishing grease application, solder repair, other volumes, switch cleaning, internal inspection and cleaning, operation confirmation.)
Accessories: copy of instruction manual
Main specifications: 100W+100W (8Ω) input 6 systems PHONO (MM/MC) quarter A amplification method using CD/PHONO direct switch W462 x H164 x D376 mm 14.3 kg
Maintained! The mid-range α series uses an α-X balance circuit that blocks 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. The exterior has rust spots, paint bald, etc. (Mizusaki Ryo)
Maintenance information: 2023.2.1 maintained (main amplifier output relay replacement, transistor and capacitor replacement, MM/MC, reckout switch disassembly, polishing grease application, solder main part repair, various volumes, switch cleaning, interior and exterior inspection cleaning, offset adjustment, operation inspection)
Accessories: copy of instruction manual
Main specifications: 90W+90W (8Ω) W448 x H160 x D441 mm 16.0 kg
Maintained! A pre-main amplifier that inherits the sound of the D series and has achieved even lower distortion. A model where you can feel the uniqueness of Sansui at the time in the extrusion of low frequencies and sound creation. It's energetic, playable, and goes great with jazz and rock, and is compatible not only with MMs but also with MC, making it great for analog fans. There is a feeling of use such as dullness, abrasions, corrosion, dirt, etc. (Kobayashi Hitoshi)
Maintenance information: 2023.11.21 Maintained (balance, main volume, output relay, power supply floating resistor, Mylar capacitor, equalizer section op amp replaced. Input selector and other rec outs, tone, subsonic, and muting switches are disassembled and polished grease is applied. (Each volume, switch cleaning, solder repair, interior and exterior inspection and cleaning, adjustment inspection.)
Accessories: copy of the instruction manual
Main specifications: 75W+75W (8Ω) PHONO (MM/MC) W445 x H163 x D403 mm 12.4 kg