The price has been reduced! 2025/5/20 sales price 80,000 yen ※ We were able to confirm basic operations such as recording and playback, etc., but the counter is immovable, and since manufacturer repairs cannot be handled, it is currently on sale. 2-track 38/19cm specification Denon's separate open reel deck. Not only does it have a sense of stability similar to commercial models, but it is an authentic model where you can enjoy solid sound quality with little overall coloring. The exterior has a feeling of use over time, such as dullness and small scratches. Serial 132052 (Tomoho Asaine)
Maintenance information: 2025.5.20 Operation confirmed
Accessories: Clampers ※ There is a crack inside on one side, so please prepare them separately
Main specifications: 2 track 38/19 cm specification mechanism part W470 × H385 × D270 mm 20 kg amplifier part W460 × H180 × D235 mm 6.5 kg
Maintained! A 70's Japanese preamp that makes you feel the intensity of color unique to vintage. The horizontally arranged dials are cool, and the atmospheric appearance is also a design unique to this era. It makes me enjoy playing records with its strong sitting sound. On the exterior, bumps and rust spots are conspicuous. Serial 110585 (Yonejima Satoshi)
Maintenance information: 2025.5.29 Maintained (relay, capacitor, and transistor replaced due to pre-out circuit output relay circuit failure. IC replacement and capacitor replacement due to defective headphone circuit and headphone amplifier ICs. (*Since headphone relays are no longer available, they are directly connected to the signal line, so please remove the headphones from your ears when the power is turned on and off.) 2024.8.22 Maintained (rubber feet attached. Power cord replacement. Tone, filter, equalizer circuit transistor, and capacitor replacement. Solder repair. Clean each volume and switch. Other interior and exterior inspection and cleaning, pin jack polishing, input/output confirmation, operation inspection.)
Accessories: none
Main specifications: 4 volume-line inputs with 21 point clicks, 5 phono inputs, 2 systems, SNR 103db, W410 x H152 x D271 mm, 8 kg
Maintained! A pre-main amplifier manufactured for high power and high quality. The sound is very loud and the thick tone is attractive. * Even at zero volume, there is slight G-noise from LCH, but this is a product specification (there is a written document by the manufacturer engineer at the time), but the noise disappears when the main direct switch is turned on. The exterior is dull (Daiki Goto)
Maintenance information: 2025.5.14 Maintained (disassembly repair contact polishing due to contact damage in the slide volume, switch disassembly contact polishing. Bad output relay contact replacement. (This unit emits residual noise even when the volume is reduced, but this is a product specification)
Accessories: A letter by the manufacturer's engineer (it mentions residual noise due to the use of A-7 products)
Main specifications: 120W+120W (8Ω) dimensions W435 x H133 x D365 mm weight 10.3 kg
The price has been drastically reduced. 2025/5/16 sales price 89,800 yen Maintenance completed in December 2021. This is a made-to-order laboratory series stereo power amplifier that uses a Super A circuit. The clear sound quality with little coloring, and the simple sound that is not flashy but is calm and simple is attractive. There is a feeling of use such as small scratches and dullness (Takasaki Atsushi)
Maintenance information: 2021.12.13 Operation confirmed 2021.12.14 Maintenance completed (replacement due to coil disconnection on the display lamp switching relay [2 lamps are red, blue, left and right, but both left and right lamps are disconnected], replaced due to deterioration of all lamps, solder correction at major locations of power amplifier/power board, meter/DC balance bias current adjustment)
Accessories: manual
Main specifications: output 150W+150W (8Ω) with speaker switch W420xH160xD415mm 28.7 kg
The price has been reduced. 2025/5/14 sales price 19,800 yen. *Currently sold, this is an analog turntable with a built-in phono equalizer and a cartridge attached. You can enjoy the sound of records with wireless headphones or wireless speakers using the built-in Bluetooth transmitter. You can see the exterior, dullness, threads, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2025.5.13 Operation confirmed
Accessories: instruction manual, power cord, connection cord, original box, EP adapter, cartridge
Main Specifications: Drive System: Belt Drive Attached Cartridge: VM Type Phono Equalizer: Compatible RPM: 33 1/3 rpm, 45 rpm Bluetooth Compatible: Ver. 4.0/Class2 W420 x H117 x D356mm 4.9 kg
The disposal price has been reduced. Member prices are not applicable. 2024/12/16 sales price 128,000 yen Internal thorough disassembly, cleaning & replacement of deteriorated parts! UREI's 27-band graphic equalizer. It is only for commercial use, and is useful in clubs, halls, etc., and of course there are many bands, but there is little sound loss, and it works well in the band you really want, so you can create your favorite sound. The exterior is generally dull and has scratches (Oikawa Tetsuji)
Maintenance information: 2024.12.16 Maintained (serial NO4480 has 13 slider pot resistors replaced and slider pot resistor connection defects repaired. Also, the movement of the knob is heavy and astringent even when grease is applied. There are good ones, but please be aware that the knobs are long and structurally poor. (Gain changeover switch and slope switch replacement x 4, serial No. 3391 has good cleaning procedures, XLR wiring correction procedures, sound output tests after gain installation, and changes for each band due to insufficient gain volume)
Accessories: copy of the manual
Main specifications: 27 bands (20 Hz to 20 kHz) mono graphic EQ W482 x H90 x D205 mm 5.3 kg/unit
The price has been reduced! 2025/4/14 sales price 68,800 yen Maintained! A stereo premain amplifier developed by inheriting CA-1000 technology. It is an amplifier that can evaluate pure sound quality without habit. The straight tone and glossy high frequencies give an impression. Even though it's an old model, it doesn't feel that the range is narrow, and it goes perfectly with rock, jazz, drums, and wind music. The exterior has a feeling of use such as dullness and scratches. Serial 2922 (Tamai Jun)
Maintenance information: 2025.4.14 maintained (TONE, loudness, main volume disassembly contact polishing, input/output pin jack polish)
2024.3.10 Maintained (speaker terminal replacement, power cord replacement, power supply circuit, tone control circuit, main amplifier circuit, etc., deterioration resistance, transistor exchange switch and volume type, contact disassembly, polishing, input/output pin jack polish ※ The circuit is not stable immediately after turning on the power, so when the filter or tone switch is switched, it makes a crackling sound. (If you wait a little while, it won't bother you)
Accessories: none
Main specifications: output 45W+45W (8Ω, Class B operation) 10W+10W (8Ω, Class A operation) 20Hz-20kHz power consumption rating 190W maximum 300W external dimensions 436 x H144 x D323 mm weight 13.5 kg
The disposal price has been reduced. Member discounts are not applicable. 2025/4/22 sales price 698,000 yen Drivers, exterior, etc. have been maintained! 3-way horn speaker from the long-established German manufacturer VISATON. The combination of a gentle mid-high range emitted from a wood horn and horn tweeter and a high-response double woofer makes it quite instantaneous and speedy. The natural spread unique to horns is comfortable. *Each connection cable and jumper are general-purpose products, and the casters on the bottom of the main unit are missing. Serial 000085/000086 (Takasaki Atsushi)
Maintenance information: 2025.4.22 maintained (driver maintenance: magnetic circuit gap cleaning/center adjustment, resonance location repair, terminal cleaning, ATT cleaning, exterior cleaning) 2013.11.26 maintained (DR45N diaphragm removed, adhesive peeling part penetrating adhesive injected. (Diaphragm rounding and center adjustment, magnetic circuit slit cleaning and rust prevention, voice coil center opening adjustment assembly)
Accessories: saran net, 6 wooden horn bases, 2 horn tweeter pedestals
Main specifications: 3-way 3-speaker bass reflex horn driver type playback frequency 30 to 35,000 Hz impedance 4 ohms efficiency 94 dB maximum output 600 W (continuous) /900 W (peak) crossover 800/7500 Hz W685 x H1140 x D505 mm (actual measurement)
The pair tube direct heat triode is thought to be made in America due to its double square getter structure. The measured value is 62/54 (rejected value 38) with original box written on the base part on one side, and it makes a rustling noise inside the tube*The pair is determined based on the GM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube, ambient heat beam tube, British metal tea base, measured value 62/60 (rejected value 44) with original box (there is writing) burnt on the side getter, written on the base, and the printing is disappearing ※The pair is determined based on the gM value measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: original box (with writing)
Audio Craft 2024, the DIY Audio Ark “Now” and the Future (Iwade Demi), a DIY audio ark that makes full use of materials, the secret story of the Accuphase DF-75 development secret story (Ikigata Saburo) that constructs the ultimate audio, Craftsman Gathering 2024, and the Kiyoto Speaker Remake Guide (Kiyotomamor/ Editorial Department) are samples, so the actual product may be broken or written on.
This is an electrovoice 20cm full range unit. It starts up well and the sound quality is bright. There is a little bit of solder left on the terminal (Tamura Eiji)
Maintenance information: 2025.3.15 sweep check OK
Accessories: original box
Main specifications: 8 ohms 80 Hz to 15 kHz 94 dB allowable input 10 W screw hole diagonal 195 mm
If you're looking for a set of 4 Y rugs unopened, take this opportunity! The exterior is good with little feeling of use (Murakoshi Yoichi)
Maintenance Information: Unopened
Accessories: instruction manual
The price has been reduced. 2025/3/26 sales price 298,000 yen Maintenance completed including replacement of 8 electrolytic capacitors in 2025/2! Equipped with an ITTOK LV2 arm. Valhalla power supply, for 33 rotations only. It is a system that is delicate yet boasts a high degree of perfection, such as the number of sounds and the drawing of different tones. Please enjoy the thick thickness and good balance. You can see a feeling of use such as appearance, dullness, scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2025.2.21 Maintained (power cord, 8 electrolytic capacitors, 2 resistors replaced. (Hinge damage processing correction, arm cleaning, sound, operation, rotation check, cleaning)
Accessories: none
Main specifications: LP 12:33 rotations only ITTOK LV2: dynamic balance type, total length 284 mm, execution length 229 mm, overhang 18 mm, needle pressure 0 to 3.0 g, compatible cartridge, 2 to 15 g, W445 x D350 x H110 mm, approx. 9.4 kg
※ There is no problem with operation, but since it is cheap, it is sold as is without warranty. ONKYO's all-in-one component X-NFR7X speaker It's a nice little sound with just the right amount of box noise. The exterior is dull and has a feeling of use. Serial 00000J5590708643 (Takahashi Nobuyuki)
Maintenance information: 2025.3.9 operation confirmed (good sweep test)
Accessories: saran net
Main specifications: 2 way bass reflex type 4 ohm 83 db 50 Hz to 100 kHz W164 x H282 x D268 mm 3.8 kg
The pair tube is thought to be made by GE due to its American structure. The measured value is 60/54 (rejected value 44) is written on the base with the original box, and there are fewer side getters per unit ※The pair is judged based on the gM value measured by the test machine TV-7 (Kojima Yosuke)
Accessories: original box
※Shipping service. No. 58 Special Feature = 3rd <THE STATE OF THE ART SUPREME COMPONENT> AWARD SELECTION/ NEW JBL4345 Detailed Report/ EMT927VS Torrence Reference/Listen to Tannoy SRM Series/Infinity “IRS” Anatomy/1981.4.15 issue. Published models: JBL/4345BWX MCINTOSH/MC2500 VICTOR/TT-801, CL-P10, TS-1 MICRO/SX-8000, HS-80 ONKYO/INTEGRA P-309, INTEGRA M-509 MARK LEVINSON/ML-6AL AUDI-TECHNICA/AT-34E11 ENTRE/EC-30 SME/3012-R SPECIAL TECHNICS/EPC-C100CMK3 FIDELTY RESEARCH/XF-1 SELLESION/DITTON300 KEF/MODEL105.4 KENWOOD/L-08C, L-08M PIONEER/A-980 SANSUI/AU-D907F SONY/TA-AX8 LO-D/TU-1000 LUXMAN/PD300 ADC/ASTRION LINN/ASAK/ S56.4.15 issued. Since the photograph is a sample, the actual item may be broken or have markings etc.
※Shipping service. Special Feature = Modern Noise Considerations Vol.2/Summary of American 3-pole Output Tubes/MOS-FET Single Stage OTL Amplifier/Medium Monitor Speaker Research/New Feedback Circuit Type DC Preamp/38cmW Woofer System Vol.4/Published Circuit Diagram: PIONEER CT-580/S57.5.1 Published circuit diagram: PIONEER CT-580/S57.5.1 issue photos are samples, so the actual product may be broken or written on it.
※Shipping service. Special Issue No. 141 = decided! 1st Stereo Sound Grand Prix/ The Best Buy Component 821 Selection by Genre/Price Range/Exciting Report/dm68, P70 & D70, Sophia/The photos are samples, so the actual product may be broken or written on.
Written by Hiroyoshi Sato/published on 2007/7/1/From analog to audio PCs, doesn't your common sense apply? /Explain everything from the history of digital audio to the basics of audio in an easy-to-understand manner. Let's review the essence of audio as a “hobby” once again! Since the photograph is a sample, the actual product may be broken or there may be markings etc.
A slightly different travel guide visiting cities reflecting Germany's diverse past. Written by Sakai Eihachiro. The 4th edition was issued on 1988.1.10.
Maintenance information: B [The state is determined on a scale of 3 from A to C. (See below for details)] ~ Considering the condition, the price is about 1 discount from the regular used price.
※Shipping service. This is a manual for CMOS digital circuits. It's written in great detail. /Written by Yojiro Yokoi/Published by Radio Engineering
Maintenance information: B [The state is determined on a scale of 3 from A to C. (See below for details)]
※Shipping service. Written by Masaru Okahara, The Complete Book of Radio Techniques: Basics of Stereo Playback/S37.7.20, first edition, 1 print published.
Maintenance Information: C (burn, stain, tear) [Condition is determined on a scale of 3 from A to C. (See below for details)] ~ Considering the condition, the price is about 3 discount from the regular used price.
Accessories: vinyl cover (dirt, tear)
※Shipping service. We propose equipment knowledge and selection methods from a unique perspective. I think there are many parts that I can sympathize with and that are helpful. /Edited by: Nagasawa Kunishiro /Published by: Ohm
Maintenance information: C (broken, threaded, written) [The condition is determined on a scale of 3 from A to C. (See below for details)] ~ Considering the condition, the price is about 2 percent off the regular used price.
※Shipping service. Special Feature = Collection of Semiconductor Circuit Ideas/IC-Based Operational Amplifiers/Matrix 4-channel Stereo Patents Established 10 Years Ago; Acousto-Optical Modulators Practical as Laser Light Modulators and Their Applications/Advances in Automotive Ignition Circuits/Increased Efficiency of Light Emitting Diodes/Operation and Mechanisms of Capacitive Discharge Igniters (CDI System) /Application of PLLs using Universal Building Block ICs/Serial Lecture/Electronic Material Application Technology/ S47.3.1 issued.
Maintenance information: C (the cover is dirty, broken, and the spine is torn) [Condition is determined on a scale of 3 from A to C. (See below for details)]
※Shipping service. You will learn about ICs thoroughly, starting with the basics. /Written by: Iwao Tachikawa/Published by Seibundo Shinkosha
Maintenance information: B [The state is determined on a scale of 3 from A to C. (See below for details)]
The disposal price has been reduced. Member prices are not applicable. 2024/11/25 sales price 50,000 yen An enclosure with unknown details imitating an ALTEC 828. There are scratches on the exterior, holes in the back plate, and adhesive peeling on the stay pedestal. (TERAMOTO Yoshihiko)
Accessories: stay fittings, screws
Main specifications: W765 x H1135 x D605 mm 43.4 kg (1 piece)/(measured) aperture diameter 335 mm screw pitch 385 mm
Maintained! A record player with FR's FR-54 mounted on a DENON DP-3000. The cabinet is a DK-100F, a turntable with precise rotation and a smooth tone, and an arm with a simple form without unnecessary decorations and a stable stability arm, and a very practical system. In addition to the exterior, sunburn marks, corrosion on the metal fittings, and a missing logo plate on the rear of the arm, dullness, scuffs, and a feeling of use can be seen. Serial (motor) 15170 (Kobayashi Hitoshi)
Maintenance information: 2024.10.29 maintenance (33 rpm button, 45 rpm button, STOP button, each switch cleaning. 15 transistors were replaced. Arm inspection. Operation test, sound test)
Accessories: copy of instruction manual
Main specifications: DP-3000: servo type direct drive speed 33 1/3, 45 rpm FR54: static balance type short arm effective length 245 mm needle pressure range 0 to 3 g compatible cartridge weight 3 to 20 g W530 ✕ H180 ✕ D435 mm 14 kg
Refresh yourself by replacing the insulated push with a new one! The terminals have also been polished, so you can use it comfortably. A dividing network with a crossover frequency of 1200 Hz. If you cut it a little lower, I think the impression will change quite a bit once you try using it. How about going with making a system? The exterior is smudgy and has a feeling of use. (OYAMA Sachiko)
Maintenance Information: 2015.10.19 Maintained (terminal polishing, cleaning, insulation bushing & mounting screw replacement. ATT (SW) cleaning.
Check the input/output waveform and balance, and check the sound output. Frequency characteristic measurement check (~ 42 kHz)
Accessories: none
Main specifications: crossover frequency 1.2 kHz impedance low range: 8 to 12 ohms high range: 12 to 16 ohms 1.1 kg
*One jumper plate is missing. 1 pair of unspecified speaker terminals If you've been looking for one, please take this opportunity. Exterior, other than those described above, is good with little feeling of use (Kobayashi Hitoshi)
Accessories: none
Main specifications: W137 x H81 x D105 mm 112 g (actual measurement)