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
Only 1.0 m 1 balance cable uses technology introduced into the 7N-A2070, and is a thick rhodium plated plug that uses a stress-free 6N copper conductor. The exterior has a feeling of use such as dullness (Tomoho Asaine)
Maintenance information: 2024.4.30 continuity confirmed
Accessories: No accessories
The price has been reduced! 2024/4/27 sales price 23,000 yen This is a standard model of domestic mono cartridges. A popular model that condenses the appeal of a mono needle, which has a thick overall sound and is also powerful. It is also attractive that the output is high and can be used without a step-up transformer (Asaine Tomoho)
Maintenance information: 2024.4.27 sound output confirmed
Accessories: none
Main specifications: output voltage 3 mV playback frequency 50 Hz to 10 kHz impedance 240 ohms compatible load 1 kΩ or more needle tip 17 microns diamond round needle needle pressure 3G
The disposal price has been reduced! (Member discounts are not applicable) 2024/4/28 sales price 318,000 yen Denon's popular premain amplifier. It uses the latest generation UHC-MOS FET, which is also used in the predecessor flagship model SX1, and achieves both subtlety and strength at a high level, and drives the speaker firmly. The exterior has a feeling of use such as dullness. Serial 5111500216 (Tomonori Asaine)
Maintenance information: 2024.4.28 Operation confirmed
Accessories: instruction manual, remote control, power cable
Main specifications: rated output 120W+120W Phono (MM/ MC switching) input x 1 line LINE input x 5 systems EXT.PRE input W435 x H181 x D506 mm 27.4 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
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 disposal price has been reduced! (Member prices are not applicable) 2024/3/7 sales price 79,800 yen Maintained! 120V specification SUMO control amplifier hosted by amplifier design genius James Bongiorno. Compared to amplifiers from the GAS era, the sound is cleaner, but the elastic low frequency bounce method is still alive and well. It is one that uses toroidal transformers and high quality parts, and makes you feel that they are particular about it. On the exterior, abrasions and line scratches are conspicuous on the top plate. Serial H (Yonejima Satoshi)
Maintenance information: 2024.3.25 Maintained (Earth float re-corrected. (*Since it is AC120 specification, a hum sound may occur at 100V)
2024.3.7 Maintained (internal inspection check, PHONO changeover SW, INPUT/TAPE changeover SW cleaning. Transistors, resistors, and capacitors can be checked. Operation check)
Accessories: No accessories
Main specifications: 6 inputs, 2 PRE OUT terminals, W480 x H40 x D220 mm, weight 8.0 kg