※The veneer is peeling, the top plate is undulating, and the grill is indented, so it is inexpensive. This high CP model was released in the 49th year of Diatone's founding. It has a very well-balanced, rounded, and gentle tone. I can do everything from jazz and rock to classical and pop music as an all-rounder (Oikawa Tetsuji)
Maintenance information: 2024.4.15 Operation confirmed
Accessories: none
Main specifications: 3 way 3 speakers, 6.3 ohms, sound pressure level, 90 dB, W380 x H680 x D295 mm, weight 25 kg
The price has been drastically reduced. 2024/4/11 sales price 118,000 yen ※It's cheap because it doesn't have a hood. Maintained! Vacuum tube stereo power amplifier. The bright and fresh sound typical of DYNACO is attractive. This is an amplifier I want to play in combination with JBL, Altec, etc. The grill is missing, and there is a feeling of use due to aging (Daiki Goto)
Maintenance Information: 2024.4.11 Maintained (· Block Capacitor 30/20/20 μF Defect Replacement · Stereo/Mono Switch Defect Replacement · Shock Noise Improvement Measures → Spark Killer Addition · Vacuum Tube 7199 Noise Exchange · Mylar Capacitor 390pF Deterioration Replacement 2 · Resistors 1/2 W Deterioration Replacement · BIAS Readjustment · Vacuum Tube Socket and RCA Jack Caulking Repair. *Other operation checks have been performed (measured at 32 to 41 W SP: 8 Ω at rated output AC 100 to 117 V)
Accessories: instruction manual
Main specifications: rated output 35W+35W vacuum tube EL34 x 4 7199 x 2 GZ-34 x 1 W330 x H165 x D240 mm 12.5 kg
The price has been reduced. 2024/3/6 sales price 15,000 yen*Currently sold because it is cheap. Small mixer with built-in processor. It can also be used as a PA processor by installing it between the mixer and power amplifier (Oikawa Tetsuji)
Maintenance information: 2024.3.6 operation confirmed
Accessories: power adapter
Main specifications: W155 x H40 x D102 mm (excluding protrusions) 540 g
The price has been reduced. 2024/3/11 sales price 80,000 yen The MEDIUM/LONG knob doesn't work, so it rotates idle, but it's a specification. QUAD tubular AM tuner It is designed to take power from QUAD 2. Also, although the meter is an overseas specification, it is a domestic band specification. ※This is a mono specification. In order to play on 2 channels, it is necessary to connect the pin jack to the RADIO 2 terminal of QUAD2 and press the MONO and STEREO switches at the same time (Daiki Goto)
Maintenance information: 2024.3.11 Maintained (・AM antenna ASSY added/IF/RF readjusted*Other operation checked. *When tuning with TUNE, the LCD on the right edge will open. After tuning in, it is common to listen on WIDE RANGE. Also, since the LONG WAVE circuit in this model has been removed, the LONG/MEDIUM selector is invalid and the knobs are dummy.)
Accessories: antenna cable
Main specifications: W270 x H95 x D15 mm 2.6 kg (actual measurement)
※ The stylus is a genuine SHURE VN35HE. The lock on the needle cover doesn't work, so it's cheap. Good needle tip! It combines the delicate expressive power unique to light needle pressure with an energetic, thick sound typical of Type 3. Recommended for those who listen to jazz and rock (Daiki Goto)
Maintenance information: 2024.4.10 operation confirmed
Accessories: none
Main specifications: mm type frequency range 10 Hz to 25,000 Hz output voltage 3.5 mV needle pressure 0.75 g to 1.25 g weight 6 g
※There is no problem with operation, but it is currently sold because it is cheap. Compact and lightweight phono equalizer. Please use it with a Miji component or a pre-main amplifier without a phono input. Perfect as an introductory machine (Daiki Goto)
Maintenance information: 2024.4.10 operation confirmed
Accessories: power cable, original box
Main specifications: MM dedicated phono equalizer W70 x H30 x D92 mm 160 g
※There is no problem with operation, but it is currently sold because it is cheap. A small 2-way speaker made by ONKYO. The bass reflex system allows you to enjoy low frequency playback with a compact appearance yet a sense of volume. There is slight stickiness on the front (Daiki Goto)
Maintenance information: 2024.4.10 operation confirmed
Accessories: none
Main specifications: 2-way bass reflex type rated impedance 4 ohms maximum input 120 W rated sensitivity level 82 dB W156 x H249 x D221 mm 4.1 kg
※Only 1 bottle is currently sold because it is cheap. Bookshelf speakers made in England. It features compact, tight low frequencies and stretchy mid-high frequencies. There are scratches, threads, and the smell of oil (Daiki Goto)
Maintenance information: 2024.4.10 operation confirmed
Accessories: none
Main specifications: 89dB 6Ω W210 × H380 × D220 mm 5.4 kg
RCA cable, 1.0 m pair, 2-core shield structure, rhodium-plated plug suppresses sound dramatization and reproduces the individuality of the amplifier and player as it is. The plug shell is dull and discolored a lot, and the LR coloring is deteriorated and damaged, so it is inexpensive (Kojima Yosuke)
Accessories: none
Pair tube KT88 compatible ball American metal base measurement value 58/52 (rejection value 44) There is getter burn and loss on one side, and there is dullness on the base on the other side ※The pair is judged based on the gM value measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: none
Pair tube KT88 compatible ball American metal base measurement value 68/62 (rejected value 44) *Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: none
※There is no problem with operation, but since it is cheap, it will be handed over as is. A threatening center speaker that supports playback up to 90 kHz. If you are looking for detailed sound, please consider it. Equipped with a direct drive super tweeter. There are 4 corks attached to the top plate (Oikawa Tetsuji)
Maintenance information: 2024.4.7 operation confirmed
Accessories: none
Main specifications: 6Ω 80W dimensions W360 x H71 x D163 mm weight 2 kg
The disposal price has been reduced. Member prices are not applicable. 2023/10/23 sales price 29,800 yen ※Currently sold. Comes with a special case! Portable headphone amplifier with built-in D/A converter. DSD256 (11.2 MHz/1 bit) PCM supports native playback of up to 768 kHz/32 bit. Please enjoy the sound quality unique to a thick mojo in the mid to low range. There is dullness and a feeling of use (Sasaki Shota)
Maintenance information: 2023.10.23 Operation confirmed
Accessories: original box
Main specifications: output level 35 mw/600 ohm, 720mw/8 ohm, output impedance 0.075 Ω, dynamic range, 125 dB input system, 3 optical systems, 1 coaxial x 1, microUSB x 1, 2 output systems, headphone jack x 2, charging time, approx. 5 hours continuous operation time, approx. 8 hours W82 x H60 x D22 mm 180 g
The price has been reduced. L2024/2/10 sales price 19,800 yen arm pipe storage keeper It stores the company's 4 arm pipes and is compatible with both AC-300MK2, 400MK2, 3000MC, and 4000MC lengths. Main weights, sub weights, etc. can also be inserted. There is dirt and dullness (Daiki Goto)
Accessories: none
Main specifications: W430 x H40 x D135 mm 740 g (actual measurement)
Pair tube, KT88 compatible ball, American metal base, measured value 66/64 (rejected value 44) with original box ※Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube KT66 equivalent tube military British tea base double gettering lot: XM/XM measured value 50/50 (rejected value 32) There is writing on the guide pin with white box*Pairs are judged based on the gM value measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: white box
Pair tube, KT66 equivalent tube, military British tea base, double gettering lot: XM/XM measured value 56/50 (rejected value 32) There is writing on the guide pin with white box ※ pair is determined based on gM values measured by testing machine TV-7 (Kojima Yosuke)
Accessories: white box
The disposal price has been reduced. Member discounts are not applicable. 2023/12/16 sales price 25,000 yen ※1 bottle only. Bass reflex enclosure imitating JBL's mid-size speaker S-99Athena. The lattice grill that symbolizes old JBL is well-made. In addition to being able to see many defects in the exterior and lattice, there is a feeling of use such as dullness, abrasions, small scratches, etc. (Kobayashi Hitoshi)
Accessories: none
Main specifications: woofer aperture diameter 316 mm, screw pitch (diagonal) 338 mm high range aperture diameter 134 mm, screw pitch (diagonal) 160 mm W610 x H450 x D314 mm 16.5 kg
All units have been overhauled, including the woofer, mid, driver and tweeter, and network! It is an individual that has been fully restored, including the exterior. The original 4343 by All Alnico, the original 4343 of 4343! The crisp low frequencies and punchy high frequencies are unbearable, and popularity continues unabated even now. The dynamic sound typical of JBL has been revived due to maintenance. It is a famous monitor that can best reproduce the sound source of on-microphone recordings regardless of age or genre (Sasaki Shota)
Maintenance information: 2024.4.4 Maintained (exterior repair/gray paint. Front and rear baffle repair and painting. Saran net replacement/frame repair. Woofer maintenance: edge replacement, corn paper coating. Midmaintenance: edge replacement, corn paper coating. Driver maintenance: magnetic circuit rust removal/gap cleaning/center adjustment, sound absorbing material replacement, terminal cleaning/screw replacement. Tweeter maintenance: magnetic circuit rust removal/gap cleaning, terminal cleaning/screw replacement. Network maintenance: frequency characteristic check, ATT cleaning, terminal cleaning/screw replacement, switching SW contact cleaning, high frequency capacitor replacement)
Accessories: none
Main specifications: 4 way 4 speaker bass reflex type 2405/2420/2121/2231A crossover 300Hz/1250Hz/9500Hz 8Ω 93dB W635 x H1,051 x D435 mm 83.9 kg/book
The price has been reduced. 2024/2/23 sales price 35,000 yen KRK powered speaker equipped with a Class D power amplifier. The amplifier section is equipped with an equalizer to help adjust room acoustics (Sasaki Shota)
Maintenance information: 2024.2.23 Operation confirmed
Accessories: power cable, original box
Main specifications: 2-way 145 W playback frequency band 42 Hz to 40 kHz input balance, standard jack W225 x H339 x D284 mm 7.6 kg
This is only the top plate part of the company's GT-9721. There are scratches, stains, etc. (Oikawa Tetsuji)
Accessories: none
Main specifications: W1165 x H45 x D580 mm
※There is no problem with operation, but since it is cheap, it will be handed over as is. Remote control is missing. AM/FM stereo tuner with dual-gate MOS FET on the front end. The tone is bright and natural. There is rubbing near the power button (Sasaki Shota)
Maintenance information: 2024.3.24 Operation confirmed
Accessories: none
Main specifications: AM/FM stereo synthesizer tuner dimensions W428 x H86 x D295 mm weight 3.2 kg
※It is currently sold because it is cheap. AM/FM tuner equipped with AM stereo. There is dirt and a feeling of use (Oikawa Tetsuji)
Maintenance information: 2024.4.3 operation confirmed
Accessories: none
Main specifications: W260 x H96 x D336 mm Weight 2.3 kg
Maintained! Pre-main amplifier with built-in DA converter. An amplifier that allows you to enjoy a gentle, expansive sound like Denon with analog input, and sound quality with a wide range with digital input. This amplifier can also be recommended as an amplifier to be combined with PC audio (Daiki Goto)
Maintenance information: 2024.2.21 maintained (function, recout, digital input, speaker, tape, loudness switch disassembly, polishing grease application, output relay replacement, bus volume replacement, solder repair, various volumes, switch cleaning, interior and exterior inspection and cleaning, digital input/output confirmation, operation confirmation. (*Since the bus volume is similar, the bus lifts slightly when the source is directly off)
Accessories: none
Main specifications: 110W+110W (8Ω) phono (MM/MC switching) 5 digital input systems (coaxial x 3/optical x 2) W434 x H180 x D420 mm 18 kg released in 1989 (Kojima Yosuke)
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
2018 fully restored item. This model omits the MC step-up transformer. The rear speaker terminal has also been changed to one compatible with banana plugs to match modern usability. Although it is a model from the 60s, there is no sense of a faded sound, and it feels like the flat, thick lackstone has been revived energetically. The sound without getting tired even after listening to it for a long time makes me fully experience the luster and warmth of stringed instruments. There are stains all over the exterior, and there are line scratches, fading, etc. on the cabinet (Sasaki Shota)
Maintenance information: 2018.8.25 Maintained (9P socket, SP terminal, RCA terminal, block capacitor, volume/BAL/TCVR, semi-fixed resistor, coupling capacitor, AC cord, resistor replacement. Power SW contact deterioration prevention relay added. SW/VR disassembly, cleaning, solder correction. (Internal and external cleaning, circuit readjustment, waveform check, input/output check, load test, sound output test)
Accessories: copy of the manual
Main specifications: output 10W+10W input terminal AUX1 · 2 Phono 1 · 2 (mm) W470 x H175 x D275 mm weight 14 kg
The disposal price has been reduced. Member prices are not applicable. 2024/3/21 sales price 128,000 yen Maintained! Quad power amplifier Despite its compact body, you can enjoy a smooth, thick sound. It really goes well with speakers made in England, and makes you listen to 70s analog sound with a sense of dynamism. The exterior has a feeling of use appropriate for the model year, such as line scratches on the top plate, rubber footprints, and overall dullness (Mizusaki Ryo)
Maintenance information: 2024.3.21 maintained (internal Tn, C, R check, Tn OK, gain setting C, DC cut C, etc. → replacement, DINININPUT connector replacement, cable creation ~ operation check)
Accessories: power cord, connection cord, copy of instruction manual
Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg
Self-made enclosure for 38cm units. An ALTEC 416-8C was installed. It is sturdy and heavy. There is a feeling of use on the exterior, such as scratches, paint chips, paint on the back, and screw holes in the top plate. ※Shipping costs will be estimated separately (Mizusaki Ryo)
Accessories: saran net
Main specifications: W660 x H995 x D465 mm (including casters) woofer aperture 360 mm φweight 51.1 kg (actual measurement)
※The sound output operation has been confirmed, but there is a slight band gap, and since it is cheap, it will be handed over as is. Trio quadruple varicon-type FM/AM tuner. The high range is moderate, but the fresh, thick sound that is difficult to obtain with a synthesizer tuner is attractive. The exterior has spots, small scratches, and rust spots (Mizusaki Ryo)
Maintenance information: 2015.3.4 manufacturer maintenance (The detection circuit offset has been adjusted. Other adjustments have been made to RF, detection, VCO, separation, meter, etc. (There is a contact problem with the switch and volume, but since parts are not available, the contacts have been cleaned)
Main specifications: W430 x H149 x D376 mm 8 kg
Maintained! Sansui's rare CD player. The firm outline and comfortable sound are attractive. I would like to use it in combination with the company's α series premain for a unified look. In addition to listening to CDs, it also has a convenient function when recording to tape, etc., and has a variety of aspects. The exterior has small scratches and dullness appropriate for the model year (Oikawa Tetsuji)
Maintenance information: 2024.3.20 Maintained (The mechanical fixing parts were manufactured and replaced in 1 pair. The clamper and loading belt have been replaced. The velocity coil has been repaired and corrected. (The tact switch on the operation panel has been replaced)
Accessories: remote control
Main specifications: 1-bit linear & direct conversion system (4DAC) W430 × H127.5 × D397.5 mm 8.8 kg
Power transformer primary: 100V secondary: 350v-320v-290 v-70v-290 v-320v-350V/DC150mA, 6.3V-2.5V/3A x 2, 6.3V-5V/3A with original box (Kojima Yosuke)
Accessories: original box
Power transformer 1st order: 100V 2nd order: 220V-200V-180V-180V-220V/DC190ma, 6.3V-2.5V/3A, 6.3V-2.5V/3A, 6.3V-5V/3A, 5V/3A W102 × H77 × D86 mm approx. 3.2 kg (actual measurement, not including protrusions) There are scratches in places on the cover with the original box (Kojima Yosuke)
Accessories: original box
Sony Theatre System Tallboy Speaker The sweep test is good, but since the corn paper has dents, it is currently sold at a low price. This speaker is easy to use with both front and rear speakers. There are small wounds and dullness (Sasaki Shota)
Maintenance information: 2024.3.18 Operation confirmed
Accessories: nothing
Main specifications: W60 x H1050 x D60 mm bottom 250 mm weight 3.4 kg (actual measurement)
Output transformer sale push pull output 40W primary: 8 kΩ secondary: 4-8-16 Ω W83 x H104 x D 78 mm 2.3 kg/piece There are abrasions and line scratches in places (Kojima Yosuke)
Accessories: none
The price has been reduced. 2024/2/20 sales price 49,800 yen 2-way bookshelf speaker system. It's the most compact speaker in the company's 600 series, yet it's second to none in terms of power and accuracy due to the new separate double dome tweeter and design improvements. It is in good condition (Sasaki Shota)
Maintenance information: 2024.2.20 sweep test good
Accessories: none
Main specifications: playback frequency 54 Hz to 50 kHz efficiency 85 dB impedance 8 ohm crossover 4 kHz dimensions W160 x H315 x D229 mm weight 4.6 kg
Set of 4 140mm pole (19mm diameter) black pole Please use it when adding shelves such as Q4 or Q4D. The exterior has dullness and small scratches (Mizusaki Ryo)
Accessories: none
Key Specifications: 140mm length/19mm diameter optional pole
100mm pole (19mm diameter) set of 4 black color Please use it to add shelves or extend poles for Q4, Q4D, etc. There are abrasions and line scratches in places (Mizusaki Ryo)
Accessories: none
Key Specifications: 100mm length/19mm diameter optional pole
It smells like an air freshener, and since ATT has cracks, it is cheap, and is currently discontinued. A bookshelf type speaker that uses a uniquely developed hard dome unit. It is a speaker characterized by a well-balanced, clear, and bright sound. There are small scratches, dents, and net holes (Daiki Goto)
Maintenance information: 2024.3.12 operation confirmed (with ATT gaps)
Accessories: none
Main specifications: 3 way 3 speaker bass reflex system frequency band 30Hz to 30kHz impedance 6Ω sound pressure level 94 dB dimensions W390 x H710 x D350 mm weight 27.5 kg/book
Set of 4 140mm pole (19mm diameter) black pole Please use it when adding shelves such as Q4 or Q4D. The exterior has dullness and small scratches (Mizusaki Ryo)
Accessories: none
Key Specifications: 140mm length/19mm diameter optional pole
Set of 4 140mm pole (19mm diameter) black pole Please use it when adding shelves such as Q4 or Q4D. The exterior has dullness and small scratches (Mizusaki Ryo)
Accessories: none
Key Specifications: 140mm length/19mm diameter optional pole
Set of 4 140mm pole (19mm diameter) black pole Please use it when adding shelves such as Q4 or Q4D. The exterior has dullness and small scratches (Mizusaki Ryo)
Accessories: none
Key Specifications: 140mm length/19mm diameter optional pole
Set of 4 This is a black pole, an option for 180mm pole (19mm diameter) quadraspires. Please use it as an additional pole for Q4, Q4D, etc. There are small scratches and dullness on the exterior (Mizusaki Ryo)
Accessories: none
Key Specifications: 180mm length/19mm diameter optional pole
Set of 4 This is a black pole, an option for 180mm pole (19mm diameter) quadraspires. Please use it as an additional pole for Q4, Q4D, etc. There are small scratches and dullness on the exterior (Mizusaki Ryo)
Accessories: none
Key Specifications: 180mm length/19mm diameter optional pole
Set of 4 This is a black pole, an option for 180mm pole (19mm diameter) quadraspires. Please use it as an additional pole for Q4, Q4D, etc. There are small scratches and dullness on the exterior (Mizusaki Ryo)
Accessories: none
Key Specifications: 180mm length/19mm diameter optional pole
Set of 4 This is a black pole, an option for 180mm pole (19mm diameter) quadraspires. Please use it as an additional pole for Q4, Q4D, etc. There are small scratches and dullness on the exterior (Mizusaki Ryo)
Accessories: none
Key Specifications: 180mm length/19mm diameter optional pole
※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
The disposal price has been reduced. Member prices are not applicable. 2023/12/10 sales price 18,000 yen USB isolator Input to USB Type-B and output from USB Type-A. USB low-speed (1.5Mbps) and full-speed (12Mbps) dedicated hubs. Please refer to the manufacturer's website for details. https://octy.co.jp/products/usb20.html ※5V power supply is not included. Please prepare separately (Oikawa Tetsuji)
Maintenance information: 2023.12.10 storefront operation confirmed (5V test power supply is supplied, and sound output operation confirmed by connecting between PC and USB DAC)
Accessories: *USB microB 5V power supply is not included. Please use your own USB adapter or the like.
Main specifications: 110mm×64mm×30mm 230g
The disposal price has been reduced. Member prices are not applicable. 2023/12/30 sales price 100,000 yen Maintained! D/A converter incorporating a 20 bit DAC chip manufactured by Barbrown. The mellow tone is attractive. It adds an analog-like nuance to the sound of the CD. The exterior is dull and has small scratches (Oikawa Tetsuji)
Maintenance information: 2023.12.30 Maintained (replacement solder and pattern correction board electrolyte cleaning due to loss of exchange resistance due to electrolyte condenser fluid leakage, input/output voice check for each FS)
Accessories: none
Main Specifications: Barb Brown 20-bit heavyweight toroidal power transformer W430 × H70 × D280 mm 7.5 kg
The 0.8 m pair end of the speaker cable uses a new polymer polyolefin material with an excellent low dielectric constant of about 1/4 compared to untreated PVC. Using a cab tire structure, you can hear a neutral sound that is strong against disturbance noise and has a sense of stability. There is rubbing dirt on the sheath (Kojima Yosuke)
Accessories: none