It is a Schumann resonance wave (7.83 Hz) generator that increases the S/N ratio by canceling electromagnetic waves etc. generated from the entire audio equipment. To use it, power the included AC adapter from an electrical outlet and place the main unit as high as possible in the room (1 m 50 cm or more). There is no noticeable damage to the exterior (Kobayashi Hitoshi)
Maintenance information: 2024.4.20 Operation confirmed (power can be turned on, effect not measured)
Accessories: power cable
Main specifications: Schumann resonance wave (7.83 Hz) generator input voltage 12V W140 × D170 × H50 mm 220 g
The disposal price has been reduced! (Member prices are not applicable) 2023/4/30 sales price 10,000 yen, balance cable, only 1.0m, uses the technology introduced in the 7N-A2070, uses stress-free 6N copper conductors, and thick rhodium plated plugs. The exterior has a feeling of use such as dullness (Tomoho Asaine)
Maintenance information: 2024.4.30 continuity confirmed
Accessories: No accessories
An XLR cable 0.6 m pair uses the world's most advanced virtual coaxial structure, and by using the same structure as a line cable as well as a microphone cable, it achieves low capacitance and broadband transmission (Satoshi Yonejima)
Maintenance information: 2024.5.15 continuity confirmed
Accessories: No accessories
DL-103 limited model. “Class 1” LC-OFC wire, which boasts the highest grade of copper, is used for the power generation coil, and the body is made of a special ceramic fiber-reinforced resin with high rigidity, enhancing the purity of traditional monitor sounds. It has an even greater sense of range, and playback with excellent separation at high speed is possible (Murakoshi Yoichi)
Maintenance information: 2024.5.11 sound output confirmed
Accessories: needle cover
Main specifications: MC type 0.25 mV needle pressure 2.2 to 2.8 g Class 1 LC-OFC adopted
Maintained by the manufacturer! The second generation model in the popular S10 series. It uses traditional ALPHA processing and the company's own Lambda S.L.C. A CD-only model that is still popular today for its vivid mid-high range and rich low range. The exterior has a feeling of use over time, such as dullness and small scratches. Serial 7061502031 (Yamato Yuki)
Maintenance information: 2024.5.17 Maintained (tray washing loading belt, tray opening/closing SW replacement)
Accessories: instruction manual remote control
Main specifications: ALPHA processor, 20-bit current addition type DAC with digital input/output, W434 x H135 x D350 mm, 14 kg
The disposal price has been reduced! (Member discounts are not applicable) 2023/12/1 sales price 298,000 yen Interior and exterior refreshment maintenance has been completed and brushed up! A consumer model of the 2S-305, a timeless monitor speaker masterpiece that Japan is proud of. The thick and clear midrange and detailed high frequencies, which cannot be felt with the look, vividly reproduce vocals. The sound that accurately expresses the characteristics of an amplifier that is set regardless of whether it is a vacuum tube or transistor makes me feel the goodness of the device I have on hand that I haven't been able to see until now. The exterior is in perfect condition due to maintenance. Serial 351364 4851370 (Yamato Yuki)
Maintenance information: 2023.12.1 Maintained (exterior polishing, oil finish, exterior repair, front and rear baffle painting to create missing parts, saran net replacement, velcro replacement. Woofer maintenance center adjustment, edge damping agent application, disconnection solder treatment, center cap dent correction. Tweeter maintenance center cap internal cleaning and replacement, center adjustment, corn paper edge crack repair, edge damping agent application, unit detachment. Network maintenance frequency characteristics check, ATT contact cleaning, terminal cleaning sound operation confirmed)
Accessories: saran net
Main specifications: 2 way bass reflex system input impedance 8 ohms output sound thickness level 96 dB crossover frequency 1500 Hz W650 × H880 × D445 mm weight 50 kg
It is set directly into the shell to achieve a pattern where records are cleaned at the same time as playing them. There is a feeling of use (Hitoshi Kobayashi)
Accessories: original box, instruction manual
Main specifications: http://www.ebay.com/itm/Vintage-Discwasher-DiscTraker-PRINT-AD-from-1977-/161709875921
It is a USB-connected bus-powered D/D converter that uses the C-Media “CM6642” as the digital audio control IC and is compatible with high-resolution sound sources (maximum 24 bit/192 kHz) (Tamura Eiji)
Maintenance information: 2024.4.13 operation confirmed
Accessories: instruction manual, original box
Main specifications: digital input: USB TypeB terminal USB 1.1/2.0 compatible, USBAudioClass 1.0/2.0 compatible digital output: coaxial digital audio output (COAXIAL) optical digital audio input (square) compatible format: PCM maximum 24 bit 192 kHz W40 x H25 x 81 mm 90 g
Power cable 3.0 m A power cable that uses the company's KS-00 cable, uses an AET PSE-018V2HG as the outlet plug, and an AET PSE-320HG as the inlet plug. Compared to the predecessor, it is a monitor and high-resolution oriented model that has excellent high-frequency reproduction capability and resolution, and transmits sound images more clearly than ever before (Kojima Yosuke)
Accessories: none
The price has been reduced! 2024/4/19 sales price 79,800 yen ※1 unit only. Maintained! It is originally a professional mono amplifier, but there is only 1 unit. You can feel the strong power of the sound quality even with just one unit. It seems to be useful for mono and center speakers. There are scratches and paint peeling on the exterior. Serial Q001769 (Fujisawa Yukishi)
Maintenance information: 2024.4.19 Maintained (XLR speaker cable created (3 meters)). Electrolytic capacitor replacement. ATT cleaning. Solder correction. Rubber feet added. Bias offset check. Output audio check. Input ① GND ② HOT ③ GND (unbalanced) output ① not used ② is set to plus ③ minus 8 Ω load. (Also, a pop sound is made when the power is on and off, but this is a specification)
Accessories: speaker cable, power cable
Main specifications: 8 ohms W482.6 x H88 x D320 mm weight 13 kg
※The dust cover is missing. Maintained! Sony's first fully automatic player. Equipped with a biotracer that electronically controls all complex movements of the tone arm. An ambitious Japanese work packed with every gadget imaginable at the time! Needle pressure can be adjusted simply by controlling the knob on the front panel, and the applied needle pressure value is digitally displayed. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.2.27 Maintained (main unit internal inspection grease coating, cleaning) *At low temperatures, an offset will occur when the arm is forcibly fed by manual operation. The current situation is that stable operation is not possible unless the room temperature or the temperature inside the main unit rises to a certain extent (room temperature).
Accessories: none
Main specifications: Crystal Rock D.D. Fully automatic player system, needle pressure adjustment range 0.5 g to 3.0 g, W500 x H175 x D430 mm, approx. 15 kg
Maintained! A mid-tier ES series player at the time. It is a CD player with clear sound quality with well-defined outlines typical of Sony. The sound is natural and calm with a sense of stability, so you can enjoy highly flexible sound quality that can be incorporated into various systems. (GOTO Daiki)
Maintenance information: 2024.2.13 Maintained (The belt for opening and closing the tray was replaced after mechanical disassembly due to deformation and deterioration. We cleaned servo mechanisms that were stuck with deteriorated grease and oil, refilled oil, cleaned optical lenses, etc. Output VR organic solvent cleaning and olefin oil coating treatment were performed.)
Accessories: none
Main specifications: CD player equipped with a high-density linear converter system, frequency characteristics 2 Hz to 20 kHz, W470 x H125 x D375 mm, 12.5 kg
Maintained! A hit model during the heyday of audio by Sony. It has a relaxed, thick tone that you won't get tired of listening to, and it faithfully expresses the sauce without unnecessary seasoning. There is a feeling of use on the exterior, such as dullness and small scratches. Serial 212487 (Hiroki Aso)
Maintenance information: 2024.4.26 maintained (MUT switch, push slide, SW exchange, volume VR, sound replacement, speaker relay due to deterioration, 14 parts replacement, other input selector, cartridge selector, each SW disassembly contact, polishing grease application, etc., DC bias balance adjustment, each input/output sound output check)
Accessories: copy of instruction manual
Main specifications: 105W+105W (8Ω) PHONO MM/MC (40Ω/3Ω) W430 × H161 × D436 mm 19.6 kg
The price has been reduced. 2024/5/18 sales price 228,000 yen Sun Valley Western 91 300B single amplifier. It plays a spacious and powerful sound, and while the output is 8W+8W, it is a very practical and high quality model. The balanced yet glossy tone from low to high frequencies is attractive. The internal relay has been modified, and the power supply can be switched on and off with a single switch. There is writing on the main body (Sasaki Shota)
Maintenance information: 2024.5.18 Maintained (missing screws added. Subchassis installation defect correction. Fix solder defects. Vacuum tube pin cleaning. Condenser position correction. Solder dregs and wire breakage scum removed* Bias checked and output sound checked. (Current load IMP is set to 8 ohms)
Accessories: manual, power cable
Main specifications: output 8W+8W vacuum tube 300B ✕ 2 310A x 4 5U4G ✕ 1 W400 x H210 x D300 mm weight 23 kg
*Currently sold. Technics 5cm horn tweeter Uses titanium diaphragms and die-cast aluminum horns. The sound quality is bright and hard with good sharpness. There are scratches and oxidation on the exterior (Yonejima Satoshi)
Maintenance information: 2024.5.19 oscillator test is good
Accessories: No accessories
Main specifications: horn type playback frequency 3,000 to 25,000 Hz W70 x H70 x D60 mm 0.35 kg
YAMAHA speaker stand The compact stand is made to feel stiff, and you can expect tight sound quality. It can be used for small speakers such as the NS-10M and medium speakers. There are line marks, threads, and tape marks on the exterior (Tamura Eiji)
Accessories: No accessories
Main specifications: W270 x H494 x D350 mm top plate part W190 W x D175 mm 7 kg/unit