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
It is an audio selector (passive type) for Real Acoustics Studio. There are 4 input systems and 1 output system. It is an easy-to-use car with VOL. There are line marks on the exterior (Hiura Katsuji)
Maintenance information: 2024.4.28 sound output confirmed
Accessories: instruction manual connection cable original box
Main specifications: W150 x H60 x D120 mm weight 464 g
※Operation has been confirmed, but since it is cheap, it will be handed over as is. It is a high-resolution DAC equipped with the high sound quality DAC PCM1794A from TI's audio IC brand Burr-Brown. By using it between a PC and audio, high-resolution playback on a PC is possible, and it delivers powerful and precise sound (Kobayashi Hitoshi)
Maintenance information: 2024.4.27 Operation confirmed
Accessories: power cable
Main Specifications: Format: PCM [USB] maximum 24 bit 96 kHz [optical/coaxial digital input] maximum 24 bit/192 kHz digital input [3 systems] USB TypeB terminal/optical digital audio input (square type) coaxial digital audio input SNR: 109 dB dynamic range: 110 dB total harmonic distortion: 0.004% or less (20Hz-20kHz) DAC IC: Texas Instruments Burr- Brown PCM1794A compatible OS: Windows 10/8 (8.1) 7/Vista/XP/2000/macOS X/9.1 or later
Since it is said that electrode resonance is attenuated and rectified by combining multiple different materials such as phosphor bronze, brass, aerospace-spec aluminum alloy, and natural smoky quartz as materials, it seems that the effect can be realized if you try it by attaching a clean power source to an outlet, etc. The appearance is good with little feeling of use (Kobayashi Hitoshi)
Accessories: original box
Main specifications: diameter 37 mm, cover length 63 mm
The speaker cable uses an untreated single-wire PC-Triplec conductor at the end of the 1.0m pair. It has a carefree, straight sound, and the sound pressure feeling as if the amplifier's output has increased is attractive. There are abrasions and whitening on the sheath ※Since it's a single wire, handling is difficult (Kojima Yosuke)
Accessories: none
Y lug plug set of 4 have mirror-polished terminal contact parts made of leadless brass material with excellent conductivity, and rhodium plating treatment has been applied to the surface to further improve conductivity and durability (Tamura Eiji)
Accessories: original box, instruction manual
TANNOI Fusion series bookshelf speakers. The bus unit uses a paper cone mixed with several types of fibers, and the response and texture to low frequency output are further improved, and natural and powerful bass reproduction is realized. Furthermore, we have obtained medium and high frequencies with an excellent sense of depth with a 16 mm thick particle board with high rigidity and excellent acoustic characteristics. There is a feeling of use on the exterior, such as scratches and peeling veneer (Tamai Jun)
Maintenance information: 2024.4.21 sweep checked
Accessories: Saran net jumper bass reflex sponge
Main specifications: size W204mmH380mm×D27mm Weight 6.4 kg Frequency characteristics 48-20kHz
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. 2024/3/11 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 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
The disposal price has been reduced. Member discounts are not applicable. 2024/1/18 sales price 118,000 yen Maintained! Quad first-generation transistor preamp. It's a car that makes more noise than its size, and you can enjoy a variety of expressions with expressive power rich in shadows. When combined with the company's 303, etc., it has a thick, dark tone and calm elegance. You can enjoy classical and acoustic sounds with glossy tones. There is a feeling of use such as small scratches. Serial 105591 (Takasaki Atsushi)
Maintenance information: 2024.1.17 maintained (internal internal board coupling C, bypass C, etc. replaced, front button contacts all cleaned, each VOL cleaned, DIN cable 3 created) 2014.12.1 maintained (capacitor replaced. Selector switch contact cleaning. (Input/output DIN terminal pin replacement)
Accessories: 5 PINDIN → RCA cable x 2, 4 PINDIN → RCA female x 1, power cable, copy of instruction manual
Main specifications: Phono 1 system, 3 line systems, W260 x H92 x D165 mm, 3 kg
※Shipping service. No. 71 Special Feature = New Wave Speakers Building a New Generation of Quality Audio/Answering the Audio Conundrum You Want to Know the Most Right Now (top) /'84 Best Buy Component by Readers' Vote/ Introducing a Tubular EQ Amplifier from Altphone /Published on 1984.7.15. Published models: JADIS/JP80, JA30, JA200 MARANTZ/CD84 PIONEER/P-D90 YAMAHA/CD2 REVOX/B225 DENNSEN/JC80 ACOUSTAT/TNT120, TNP FOSTEX/GZ2001 BEVERIDGE/SYSTEM 5 INFINITY/RS2A LUXMAN/MB300 PIONEER/A150D AR/AR TURNTABLE SPEX/SDX3000, SDT3000 MICRO/MT500, MT1000L/H AKG/P100 LIMITED The photo is a sample, so the actual item may be broken, have marks, etc.
※Shipping service. No. 62 Special Feature = Japanese Sound · Japanese Speaker Listen to its Appeal/Professional Sound Creation · Uesugi Yoshiro /Death of a Person Who Draws Sounds = Remembering Fuyuki Segawa/Professional Sound Creation = Yoshiro Uesugi/Published 1982.4.15. Posted models: MCINTOSH/C33 DENON/PRA-6000 THORENS/TD226+TP16W/ESOS+SME3012R W/LIFT, TDP226+SME3009R W/LIFT+TP997 W/ESOS ACOUSTAT/MODEL THREE COUNTER POINT/SA-1 DENON/DL-1000 VICTOR/MC-L10 KENWOOD/L- 02A, L-02T DYNAVECTOR/DV/KARAT 17D TECHNOICS/305MC MK2 STAX/ELS-81F JENSEN/SYSTEM-B PRO MONITOR WHAFEDALE VICTOR/A-X77 YAMAHA/A-7A ESPRIT/TA-E901 STAX/DA-50M MICHAELSON&AUSTIN/TVP-X LUXMAN/ PD310 NAKAMICHI/TX-1000 MICRO/BL-81 SAE/P101, T101, E101, A1001, A501, A201 PIONEER/PT-R7_3 S57.4.15 was issued. The photograph is a sample, so the actual product may be broken, or there may be markings etc.
Disposal prices have been reduced! Member discounts do not apply. 2023/4/2 sales price 10,000 yen*Currently sold. The safety wire is broken. In-ceiling subwoofer Equipped with a single 5.25-inch woofer, it provides deep bass up to 40Hz without distortion. There is a feeling of use on the exterior, such as fading, abrasions, etc. (Kanai Hidetsugu)
Maintenance information:2023.4.2 sound output confirmed
Accessories: none
Main specifications: 50 Hz to 230 kHz 96 dB 6 ohm φ391 mm depth 205 mm 6.4 kg
Disposal prices have been reduced! Member discounts do not apply. 2023/4/2 sales price 10,000 yen*Currently sold. In-ceiling subwoofer Equipped with a single 5.25-inch woofer, it provides deep bass up to 40Hz without distortion. There is a feeling of use such as exterior, fading, abrasions, etc. (Kanai Hidetsugu)
Maintenance information: 2023.4.2 sound output confirmed
Accessories: none
Main specifications: 50 Hz to 230 kHz 96 dB 6 ohm φ391 mm depth 205 mm 6.4 kg
Disposal prices have been reduced! Member discounts do not apply. 2023/4/2 sales price 10,000 yen*Currently sold. The safety wire is broken. In-ceiling subwoofer Equipped with a single 5.25-inch woofer, it provides deep bass up to 40Hz without distortion. On the exterior, there is a feeling of use, such as cracks, fading, abrasions, etc. on the main body (Kanai Hidetsugu)
Maintenance information: 2023.4.2 sound output confirmed
Accessories: none
Main specifications: 50 Hz to 230 kHz 96 dB 6 ohm φ391 mm depth 205 mm 6.4 kg
Disposal prices have been reduced. Member discounts do not apply. 2022/12/30 sales price 10,000 yen. In-ceiling subwoofer Equipped with a single 5.25-inch woofer, it provides deep bass up to 40Hz without distortion. There is a feeling of use on the exterior, dullness, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information:2022.12.28 operation confirmed
Accessories: instruction manual (copy)
Main specifications: 50 Hz to 230 kHz 96 dB 6 ohm φ391 mm depth 205 mm 6.4 kg
Disposal prices have been reduced. Member discounts do not apply. 2022/12/29 sales price 10,000 yen. In-ceiling subwoofer Equipped with a single 5.25-inch woofer, it provides deep bass up to 40Hz without distortion. There is a feeling of use on the exterior, dullness, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information:2022.12.28 operation confirmed
Accessories: instruction manual (copy)
Main specifications: 50 Hz to 230 kHz 96 dB 6 ohm φ391 mm depth 205 mm 6.4 kg
Disposal prices have been reduced. Member discounts do not apply. 2022/12/29 sales price 10,000 yen. In-ceiling subwoofer Equipped with a single 5.25-inch woofer, it provides deep bass up to 40Hz without distortion. There is a feeling of use on the exterior, dullness, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information:2022.12.28 operation confirmed
Accessories: instruction manual (copy)
Main specifications: 50 Hz to 230 kHz 96 dB 6 ohm φ391 mm depth 205 mm 6.4 kg