※Shipping service. Characteristics and circuits of 15 famous vacuum tube power amplifier models/genealogy of vacuum tube power amplifier circuits/roundtable discussion talking about famous machines of power amplifies/listening to 7 models of Tama amplifies/Questionnaire to Mr. 8 What is a famous machine for me/ Takesue Kazuma: Memoirs of 30 years of making amplifiers/anthology articles, popular power amplifier production articles/radio engineering companies/1989.12.20 first edition published. The photograph is a sample, so the actual product may be broken, written, etc.
Special Feature = CD Era Vacuum Tube Preamplifier/GEC DA30/MOS FET 1 Stone Power Amplifier/82' Audio Technology of the Year/Precision Processing Technology for Players/New JBL Driver 2445J/Large Diameter W Woofer 21 Models/Summary of Published Circuit Diagrams: Technics SU-V7A/HAFLER DH500/S58.3.1 Issued. The photograph is a sample, so the actual product may be broken, written, etc.
Special Feature = Hi-Fi Era Hardware and Software/Watching CD Software/Roundtable Discussion; Tone Arm Research/5 Channel Divider/Vacuum Tube Power Amplifier Measurement and Audition; WE-293A PP/WE300b PP/EL34pp/VT52pp/VT104 10E, 215/Listening Room/Published Circuit Diagram: Futterman NCP-1/OTL-1/S58.11.1 published. The photograph is a sample, so the actual product may be broken, written, etc.
※Shipping service MJ Radio and the Experimental Editorial Department/Edition - 40 carefully selected rooms that have made audiophile dreams come true. Published 2019.5.18. The photograph is a sample, so the actual product may be broken, written, etc.
※Shipping service. Original Speaker Design Technique by Tetsuo Nagaoka 2/Table of Contents = Original Speaker Drawing Collection/"Ark” Measured Speaker Unit Data_2/New Edition: Full List of Original Speakers by Tetsuo Nagaoka Issued 1997.10.1 Since the photograph is a sample, the actual product may be broken, written, etc.
※Shipping service. Special Feature = Contemporary Noise Thoughts Vol.2/Overview of American 3-Pole Output Tubes/Mos-FET Single Stage OTL Amplifier/Medium Monitor Speaker Research/New Feedback Circuit Type DC Preamplifier/38 cmW Woofer System Vol.4/Published Circuit Diagram: PIONEER CT-580/S57.5.1 Issued Photographs are samples, so the actual product may be broken or written.
※Shipping service. Special Feature = Internal and External Tweeter Research/Modern Noise Thoughts Vol.3/SR Speaker Research/New BLT Amplifiers/Sound Field Correction Using Partitions/Driver Tube Research/Frontier Technology “VHD Technology” /Published Circuit Diagram: ElectroVoice TL505 Enclosure/Mixing Console and Noise///S59.10.1 published. The photograph is a sample, so the actual product may be broken, written, etc.
※Shipping service. “Fascinating Vacuum Tube Amplifiers: Their History, Design, Production (Volume 1), Reprint Edition” /Over 40 Production Examples/Complete Famous Ball Data/Wireless and Experimental Edition/Supervised by Isamu Asano/1990.4.2 2nd Print Published. The photograph is a sample, so the actual product may be broken, written, etc.
※Shipping service. Bessatsu Stereo Sound Preservation Edition/ A selection of vacuum tube amplifier masterpieces from yesteryear where you can almost hear “good sounds”! /Macintosh Successive Tube Amps Listening Comparison/Marantz Successive Tube Amps Listening Comparison/Published on 2008/6/30. The photograph is a sample, so the actual product may be broken, written, etc.
Bessatsu Stereo Sound/Fun Relationship between Rock and Audio/Which one came close to the sounds of Les Paul and Stratocaster? /Testing 30 model speakers under 300,000 yen/DJ audio research ~ Mixer as preamplifier/appeal of CDJ players/21st century masterpieces/remastered masterpieces/multi-channel masterpieces/"Pink Floyd/Madness” SACD multi research/ 2003.7.31 publication. The photograph is a sample, so the actual product may be broken, written, etc.
※Shipping service The “Hi-Res Textbook” introduces high-resolution playback methods for listening to good sounds. It is one of the “Absolute Playback Guarantee” books that you can definitely achieve high-resolution playback if you read them. “What is Hi-Res?” It starts with, and covers everything from how to manage “tags” for sound sources and how to back them up. The photograph is a sample, so the actual product may be broken, written, etc.
※Shipping service. Includes Riverside Gallery and Riverside Story, which introduced rare and rare editions all at once, biographies of major musicians such as Thelonious Monk, Bill Evans, and Cannonball Adderley, and various discographies. /Published in 1997/6. The photograph is a sample, so the actual product may be broken, written, etc.
※Shipping service. “Audio Vacuum Tube Manual” /Published by Radio Engineering Company/by Ichiki Yoshinori/A revised edition that carefully selects the “All Japan Vacuum Tube Manual” published in Showa 33 for audio applications. S60.7.20 first edition issued. The photograph is a sample, so the actual product may be broken, written, etc.
※Shipping service. Written by Morikawa Tadayu/ From the articles published in the “MJ Radio and Experiment” magazine, the one that serves as a reference for amplifier production was selected and revised. A useful book for beginners and veterans alike. Published 2006.9.29. The photograph is a sample, so the actual item may be broken or written on it.
Written by Hiroyoshi Sato/published on 2007/7/1, doesn't your common sense apply from analog to audio PCs? /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! The photograph is a sample, so the actual item may be broken or written on it.
※Shipping service. Tetsuo Nagaoka's second analog world! Even the best CDs can't surpass the best analogs! A creative record guide that is increasingly gaining value in the CD era by selecting excellent recordings and super excellent recording LPs! /First issue on 1985/10/15. The photograph is a sample, so the actual item may be broken or written on it.
※Shipping service. Special Issue No. 8 = Total Test of the Latest 66 Audio Amp Models (Amp Test Method and Results, Pre-Main Amp Edition, etc.) /See Test Amp Circuits/Published 1968.10.20. The photograph is a sample, so the actual item may be broken or written on it.
※Shipping service. Special Issue No. 10 “= Blind Audition of Speaker Systems/Bookshelf Type Tackling Large Systems/Published 44.4.20. The photograph is a sample, so the actual item may be broken or written on it.
※Shipping service. Special Feature = All Audio Amplifiers/Latest 96 Model Total Test/2nd Recording Grand Prix Decision/Music and Playback/Audio Diagnosis//Listed Models: NATIONAL/EAS-25HH20 SATIN/M-15, M-15E CORAL/FLAT-5S, FLAT-6S PIONEER/TVX-90, CS-300 TRIO/KL-3060, KL-4060, KL-5080, SANYO/RD-3400, DCX- Published 1300/S45.4.1. The photograph is a sample, so the actual item may be broken or written on it.
※Shipping service. Special Feature No. 32 = Field Test of the Latest 41 FM Tuner Models/SS Special Present Japan FM Radiation Station/1974.10.1 issue/The photograph is a sample, so the actual item may be broken or written on.
※Shipping service. Special Issue No. 36 = All Speaker Systems (above) Test of the latest 40 models/Sound Quarterly (listen to new products) /1975.10.1 issue. Published models: CHRYSLER/LAB-1000,2000 YAMAHA/NS-451 ALLISON/ONE, TWO SLESTION/UL6, UL8 OMAL/MODEL TL6 CABASSE/BRIGANTIN INFINITI/2000Ⅱ JENSEN/23 YAMAHA/C-1 SANSUI/AU9900,11000, TU9900 LAX/L-80V TECHNICS/ HY-7600,7200, ST-7600,7200 VICTOR/JA-S91, S71, S51, JT-V71, V51 TRIO/KA-7500, KT-7500 DIATONE/DA-U850, DA-F750, DA-U750 GAS/AMPZILA SAE/MARK2500 ALTEC/9440A RADFORD/HD250, ZD22 DENON/DP-1700, DL-109R ,109D DIATONE/DP-91D YAMAHA/YP-600, YP-1000Ⅱ MICRO/TAKE-5 CEC/BD-7000 OTTO/TP-1200 SANSUI/SR-525 GRACE/G714, G704 DUAL/601,1228,1225. The photograph is a sample, so the actual item may be broken or written on it.
※Shipping service. No. 58 Special Feature = 3rd “THE STATE OF THE ART: Supreme Component” Award Selection/New JBL 4345 Detailed Report/EMT927 vs. Torrance Reference/Listen to the Tannoy SRM Series/Infinity “IRS” Anatomy/1981.4.15 issued. Posted 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. The photograph is a sample, so the actual product may be broken, or there may be markings etc.
※Shipping service. No. 132 Special Feature = Listen to on SACD & CD Latest Amplifier 39 Models/DVD Audio Player Announcement/Wilson Audio System6 Detailed Report/1999.10.15 Issued. Since the photograph is a sample, the actual product may be broken, written, etc.
A super high end power strip by Acoustic Revive, which is Hi-Fi's first appearance! Adopts a patented stainless steel spring and an electrode structure using pure copper. The conductivity seems to have improved dramatically, and I have the impression that the sound quality has become smoother. The appearance is good with little feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.5.12 continuity confirmed
Accessories: original box
Main specifications: W88 x H70 x D265 mm 2.5 kg
An item that improves sound quality simply by placing it on the floor between the speakers! The development period is 30 years, so it's worth trying out. For those who are worried about not being able to tune the way they want with just sound-absorbing materials or reflective materials, please go for it. As far as I've tried it at the store, I have the impression that the high range is slightly milder and the middle range is thicker. The appearance is good with little feeling of use (Kobayashi Hitoshi)
Accessories: special aluminum case, special cleaner liquid, cloth, instruction manual
Main specifications: diameter 80mm height 58mm 1.1 kg
LGC conductors are used for only 1 3.0 m RCA cable. I want a little more loss of the high frequencies, but the sound is so intense that it comes forward (Mizusaki Ryo)
Maintenance information: 2023.11.24 Continuity confirmed
Accessories: none
An introductory cable with 1.5 m pair untreated ends that are soft and easy to run. The medium range is easy to hear and has a sense of volume, making it perfect for upgrading from accessories. Good product with little feeling of use (Kanai Hidetsugu)
Maintenance information: 2024.3.30 continuity confirmed
Accessories: none
Digital cable 1.0m RCA terminal It uses a titanium-containing sheath, OFC (oxygen-free copper) wire, gold-plated contacts that are resistant to aging, and a sturdy metal pin plug with strong reliability. Good product with little feeling of use (Kanai Hidetsugu)
Maintenance information: 2023.7.20 Conductivity confirmed
Accessories: original box
Speaker cable A standard cable that has become synonymous with an unprocessed speaker cable with an 0.8 meter pair end. It features a stranded wire structure that enables reliable transmission with low noise even in harsh environments such as studios. Monitor-like sound quality with little coloring (Kobayashi Hitoshi)
Maintenance information: 2024.4.7 continuity confirmed
Accessories: none
Speaker cable A standard cable that has become synonymous with 0.95m pair end unprocessed speaker cable. It features a stranded wire structure that enables reliable transmission with low noise even in harsh environments such as studios. Monitor-like sound quality with little coloring (Kobayashi Hitoshi)
Maintenance information: 2024.4.7 continuity confirmed
Accessories: none
Speaker cable A standard cable that has become synonymous with 1.4 meter pairs of unprocessed speaker cables. It features a stranded wire structure that enables reliable transmission with low noise even in harsh environments such as studios. Monitor-like sound quality with little coloring (Kobayashi Hitoshi)
Maintenance information: 2024.4.7 continuity confirmed
Accessories: none
Speaker cable A standard cable that has become synonymous with 1.3 m pair of unprocessed speaker cables. It features a stranded wire structure that enables reliable transmission with low noise even in harsh environments such as studios. Monitor-like sound quality with little coloring (Kobayashi Hitoshi)
Maintenance information: 2024.4.7 continuity confirmed
Accessories: none
Speaker cable A standard cable that has become synonymous with 1.3 m pair of unprocessed speaker cables. It features a stranded wire structure that enables reliable transmission with low noise even in harsh environments such as studios. Monitor-like sound quality with little coloring (Kobayashi Hitoshi)
Maintenance information: 2024.4.7 continuity confirmed
Accessories: none
※A standard cable with only 1 speaker cable that has become synonymous with 2.0m end unprocessed speaker cable. It features a stranded wire structure that enables reliable transmission with low noise even in harsh environments such as studios. Monitor-like sound quality with little coloring. There is an appearance, dullness, and a feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.3.25 continuity confirmed
Accessories: none
Speaker cable is a standard cable that has become synonymous with an unprocessed speaker cable with only one 1.4 meter end. It features a stranded wire structure that enables reliable transmission with low noise even in harsh environments such as studios. Monitor-like sound quality with little coloring (Kobayashi Hitoshi)
Maintenance information: 2024.4.7 continuity confirmed
Accessories: none
Speaker cable A standard cable that has become synonymous with an unprocessed speaker cable with an 0.8 meter pair end. It features a stranded wire structure that enables reliable transmission with low noise even in harsh environments such as studios. Monitor-like sound quality with little coloring (Kobayashi Hitoshi)
Maintenance information: 2024.4.7 continuity confirmed
Accessories: none
Speaker cable A standard cable that has become synonymous with 1.0 m pair of unprocessed speaker cables. It features a stranded wire structure that enables reliable transmission with low noise even in harsh environments such as studios. Monitor-like sound quality with little coloring (Kobayashi Hitoshi)
Maintenance information: 2024.3.30 Continuity confirmed
Accessories: none
Dali's tall boy. The woofer uses a wood fiber cone, and the tweeter is equipped with a 28mm dome tweeter and ribbon tweeter. In addition to the conventional mid-high range with a high texture, we have acquired a new low range where you can feel the high response. Serial 1917336 (Murakoshi Yoichi)
Maintenance information: 2024.5.13 sound output confirmed
Accessories: saran net, jumper cable, spikes, metal fittings
Main specifications: 3 way 4 speakers bass reflex type frequency characteristics 49 Hz to 32 kHz efficiency 89 dB impedance 4 ohms W195 x H001 x D330 mm weight 18.9 kg
This is a 12 dB/oct passive type filter used when playing back SP records on an ELP laser turntable. Removes noise in the high and low frequencies of SP records. The appearance is good with little feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.5.1 sound output confirmed
Accessories: instruction manual
Main specifications: cutoff frequency continuously variable low 300 Hz or less, high 2 kHz or more continuously variable W200 x H68 x D170 mm kg
※1 bottle only. Fostex 1dB step transformer attenuator. It uses a large single-turn transformer and a highly reliable rotary switch with low contact resistance. The input/output terminals are tight-fitting. The exterior has oxidation, dullness, etc. (Tamura Eiji)
Maintenance information: 2024.5.8 operation confirmed
Accessories: none
Main specifications: 8Ω allowable input 100W (when using a network) attenuation 0 to 12 dB size W88 x H90 x D170 mm approx. 970 g
Since there are no connectable devices, it has not been checked. D-terminal cable The highest-grade D-terminal cable using a 1.5m silver-coated OFC conductor is ideal for transmitting high image quality images for progressive, high-definition devices, etc. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Accessories: none
Sold 1 bottle U52/5U4G equivalent tube brown base, made in England, measured value 52 (rejected value 40) with white box (written on the box), part of the print on the model number part has disappeared, but it was determined from the structure that it was CV1071. There are adhesive marks on part of the base ※The measured value represents the GM value measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: white box
Pair tube (checked with a tube checker) beam quadrupole. There is a tea box. Measured value 36,34/30 (rejection value) *The pair was determined based on the GM value measured by the testing machine TV-7. The ※ logo is scratched, so it's a bargain.