Maintained! The 306 series was supported as a pure audio entry model. It has plenty of phono circuits, is MM/MC compatible, and impedance can be adjusted. Clear, high quality sound quality with W super servo system. I feel that the sound quality, which has a slight core, is good in this era. You can see a feeling of use such as appearance, dullness, small scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2024.4.22 maintenance completed (mode, recout, input, subsonic, cartridge, phono selector switch disassembly, polishing grease application, replacement of all indicator lamps, solder repair, pin jack polishing, internal inspection and cleaning, each volume, switch cleaning, operation confirmation)
Accessories: instruction manual
Main specifications: PHONO (MM/MC) 2 system frequency characteristics 0.8 Hz to 170 kHz dimensions W480 x H100 x D403 mm weight 10.5 kg
Maintained! A famous machine 44 with an easy-to-handle RCA terminal added to the rear terminal of the Quad control amplifier. The British QUAD's small preamp is a perfect balance between the freshness and richness of character. You can enjoy a calm, high-quality sound when paired with the same speakers made in England (Murakoshi Yoichi)
Maintenance information: 2024.4.18 maintenance (internal all checks, power supply filter C ± B bypass C replacement, balance VOL cut off sound → cleaning, check each board)
Accessories: 2 DIN input cords, power cord, instruction manual (copy)
Main specifications: 2 LINE inputs, 2 TAPE2 systems (DIN input or more), 1 PHONO input system, Phono sensitivity 1m/3m/10mV switching W321 x H103 x D203 mm 4 kg
Maintained! The rear terminal of the Quad control amplifier has also been changed to RCA specifications to make it easier to handle, and the famous 44 has been refreshed to deliver goodness to a wide range of people. The British QUAD's small preamp is a perfect balance between the freshness and richness of character. When paired with the same speakers made in England, you can enjoy a calm, high-quality sound. Personally, I recommend the combination with QUAD405. Serial Q36114 (Fujisawa Yukishi)
Maintenance information: 2024.4.22 Maintained (balance VOL cleaning ~ check OK. Check the other boards and re-solder the holes. (C, R check OK)
Accessories: power cord
Main specifications: 2 LINE inputs, 1 PHONO input, 1 phono sensitivity, 1m/3m/10mV switching, W321×H103×D203 mm
Maintained! John Carl's slim-design “flat preamp” is the first control amplifier equipped with an original module developed in-house. Thorough simplification and a straight, coined tone with carefully selected high quality parts are the model that became the basis for later Mark Levinson preamps. Serial 1306 (Murakoshi Yoichi)
Maintenance information: 2024.4.20 maintenance (new power supply made inside the original power supply, Lch gain changeover switch replacement, volume gang error correction, function switch contact cleaning, specification inspection, various operation inspections) 2024.3.3.13 maintenance (various inspections, aging) 2023.10.27 maintenance (RCA terminal replacement, inspection adjustment)
Main specifications: 5 module phono (MM) compatible RCA input/output body size W482 x H60 x D195 mm (actual measurement) 4.2 kg (actual measurement)
*Only a simple 2ch test has been carried out, and since no other checks are possible, it will be sold as is. Digital AV preamp compatible with Dolby Atmos and DTS X. High-precision computation processing using 64 bits is possible for equalizing processing of all bands. Equipped with a viewing environment optimization system “YPAO” (Yamaha Parametric Room Acoustic Optimizer) specially designed for this unit. This is a next-generation AV amplifier with a focus on digital sound processing. Serial Y032095UW (Fujisawa Yukishi)
Maintenance information: 2024.4.21 Operation confirmed (2ch simple test only. (Detailed checks have not been confirmed)
Accessories: remote control, instruction manual, FM antenna, microphone, original box, microphone base
Main specifications: 65W W350 x H192 x D474 mm 13.5 kg
Maintained! It is a control amplifier that shines with a good sense of design such as the meter on the front panel. The sound quality makes you feel calm and natural. Recommended for those with high phono input quality and listening to records. As for the exterior, there is rust on the top plate. Serial 200655 (Fujisawa Yukishi)
Maintenance information: 2024.4.21 Maintained (micro relay and resistor replacement, diode replacement. MONITOR lever SW exchange, volume VOL exchange. Other head amplifier transistor deterioration replacement, power supply resistor, capacitor replacement, other SW disassembly contact polishing grease application, sound confirmation for each input/output connection)
Accessories: No accessories
Main specifications: phono input: 2 systems (MC head amplifier built into PHONO1) W430 x H170 x D320 mm weight 11.2 kg
Maintained! A popular preamp sold during the heyday of analog. The mid-range is more glossy and has a sexier vibe than the one after C29. That rich sound can truly be said to be a preamp representing the golden age of Mackins'. Serial AK9084 (Murakoshi Yoichi)
Maintenance information: 2024.4.19 maintenance (each SW, VOL cleaning, pin jack cleaning, lamp deterioration replacement, panel peeling correction, pin jack caulking, additional block capacitor installation, shield cable earth solder treatment, operation check)
Accessories: instruction manual (copy)
Main specifications: 4 input terminals, 4 PHONO input systems, 2 pre-out systems, W430 x H140 x D365 mm, 13.8 kg
The price has been drastically reduced! 2024/3/28 sales price 238,000 yen Maintained! 100V specification. Macintosh's classic preamp. It reproduces bright, glossy tones with clear mid-range sounds. This model should be used by music fans who enjoy all kinds of sources. The fact that it has a full range of functions, such as a 5-band equalizer and a 7-source input selector, is also attractive. The exterior has a feeling of use such as dullness and small scratches. Serial EB8504 (Jun Tamai)
Maintenance Information: 2024.3.28 Maintained (Balance Loudness Equalizer Gari Cleaning Can't Be Removed) 2024.2.29 Maintained (Each SW Vol Cleaning Glass Panel Peeling Correction Push Button Disassembly Cleaning Lamp Deterioration Replacement Fuse Replacement Compander Pot Defect Monitor Amplifier RCH Noise → FET Defective Replacement Transistor Replacement REC Relay failure → replacement)
Accessories: copy of the manual
Main specifications: Equalizer up and down 12dB (center frequency/30Hz/150Hz/500Hz/1.5kHz/10kHz) rated output 20W+20W (8Ω) W445 x H192 x D395 mm 11.8 kg
Maintained! An amplifier with a black panel that exudes chic calm. Rather than being glossy like the PRA-2000, it sounds clear and straightforward, and has a sense of unity. It's an excellent product that blends in smoothly no matter what amplifier you combine it with. There are scratches on the exterior. Serial 6111100015 (Fujisawa Yukishi)
Maintenance information: 2024.4.19 Maintained (PHONO selector, tape monitor selector SW disassembly contact polishing cleaning/grease application. (Improved by cleaning balanced VR and main VR contacts, check the sound output for each other input/output connection)
Accessories: instruction manual
Main specifications: MC/MM input with CD direct input W466 x H136 x D302 mm 6.3 kg
The price has been drastically reduced. 2024/4/17 sales price 128,000 yen Maintained! Quad control amplifier The famous machine 44 has been refreshed by changing the back terminal to an RCA specification that is easy to handle. It's a perfect balance between freshness and richness. When paired with speakers made in England, you can enjoy a calm, high-quality sound (Daiki Goto)
Maintenance information: 2024.4.17 maintained (internal all checks, B-filter capacitor deterioration, +- 18V drive Tr leak large, rectifier diode failure instability → replacement power SW spark killer broken → replacement. C and R checks within each board. *There is a sound leak at main volume 0. (Create 2 1.5m DIN5 cables)
Accessories: copy of instruction manual, power cable, connection cable
Main specifications: 2 LINE inputs, 1 PHONO input, 1 phono sensitivity, 1m/3m/10mV switching, W321×H103×D203 mm
The disposal price has been reduced! (Member discounts are not applicable) 2023/12/15 sales price 118,000 yen Maintained! The thin preamp from the musical Fidelity has an English style taste where you can feel the elegance, and the perfect balance of high frequencies that don't insist too much on the thick, thick mid-low range unique to this era feels good. The tape/monitor switch has been repaired and replaced and is a non-genuine product. The exterior is dull overall, with small scratches and a lot of feeling of use (Asaine Tomoho)
Maintenance information: 2023.10.26 maintained (TAPE1 monitor switch defective → non-genuine silver knob replacement. Rear terminal screw idle rotation all replacement, operation check) 2023.10.12 maintained (main VOL noise → replacement. Treble distortion noise VOL replacement (original not available, replacement with replacement, no click on the midpoint position) IC, DC leak defect replacement, capacitor deterioration replacement, operation check.
(We will not be able to respond if the dedicated parts are defective in the future)
Accessories: none
Main specifications: external power supply system with PHNON (MM MC) CR type RIAA equalizer output 2 systems W482 x H57 x D166 cm 3.0 kg
The price has been reduced! 2024/4/13 sales price 79,800 yen Maintained! This is the first AUDIO OF OREGON control amplifier to arrive in a long time. It is compatible with 117V specification American speakers such as ALTEC and JBL, etc., and although it is a transistor, it doesn't become too stiff and makes you enjoy the firm sound. The exterior has dullness and scratches. ※The plug has been changed. Genuine RF Serial 02117 (Tamura Eiji)
Maintenance information: 2024.4.13 Maintained (Electrolytic capacitor replacement in amplifier module. Pattern contact defects have been fixed. (Voice operation check)
Accessories: No accessories
Main specifications: All stages use pure class A operation circuit input phono (mm/47 kΩ) tuner, tape, aux dimensions W483 x H89 x D190 mm weight 4.5 kg
The disposal price has been reduced. Member discounts are not applicable. 2023/4/2 sales price 250,000 yen ※We have newly created head amplifier modules ✕ 2, Phono equalizer modules x 2, and flat modules x 2. Maintained! This is a control amplifier from Sony's high-end brand, the Esprit series. Straight Sony sound with a sense of speed similar to the TA-E900. I want to use the look and sound in combination with the company's Power TA-N902. The exterior has small scratches and is dull. Serial 200499 (Takasaki Atsushi)
Maintenance information: 2023.4.2 Maintained (2 flat modules replaced. Check the input/output waveform, check the left and right balance, and connect a power amplifier to perform a comprehensive operation test.)
2023.1.5 Maintained (Phono equalizer module x 2 replaced. Check the input/output waveform, check the left and right balance, and connect a power amplifier to perform a comprehensive operation test.)
2022.8.31 Maintained (head amplifier module ✕ 2, capacitor, semi-fixed resistor, relay, LED, lamp, Capcom, power cord replacement. All SW, VR disassembly and cleaning. Re-solder the deteriorated part of the solder surface of the board. Check the input/output waveform, check the left and right balance, and perform a comprehensive operation test by connecting a power amplifier.)
Accessories: copy of instruction manual
Main specifications: 2 phono inputs, 5 line inputs, 2 pre-out systems, W480 x H105 x D465 mm, 12.5 kg