Maintenance was carried out with attention to detail, such as replacing capacitors and replacing SP terminals! A kit model of a power amplifier using a 50CA10 3-pole output tube and an OY15 type output transformer, composed of circuits and parts conforming to the MQ60 type, which has been evaluated by LUXMAN. The sound of a vacuum tube has a sense of volume that seems to meet expectations, and it gently envelops you. The sound, which doesn't require scale, is particularly unique, and the slight thickness that spreads from below the mid-range makes you feel comfortable. The exterior has rust, oxidation, and scratches. Serial 574788 (Tamura Eiji)
Maintenance information: 2024.7.11 Maintained (vacuum tube sockets, block capacitors, electrolytic capacitors, oil capacitors, SP and RCA terminals, semi-fixed VR, fuse holder replacement. Check input/output waveforms and perform sound output checks. Impedance switching SW, gain VOL complete disassembly, contact refinement, and application of grease to prevent oxidation and sulfidation. Input/output waveform confirmation, load test (1 kHz sine wave, at 8 ohm load: 27W+27W, actual measurement), sound output test)
Accessories: No accessories
Main specifications: 30W+30W 50CA10 push pull W410 x H160 x D205 mm 13.8 kg
※1 RCA cable 0.3 m N type 4 step ladder cable only. There is no fog and it has a natural sound (Murakoshi Yoichi)
Maintenance information: 2024.7.9 continuity confirmed
Accessories: none
Fully restored! A kit model of a power amplifier using a 50CA10 3-pole output tube and an OY15 type output transformer, composed of circuits and parts conforming to the MQ60 type, which has been evaluated by LUXMAN. The sound of a vacuum tube has a sense of volume that seems to meet expectations, and it gently envelops you. The sound, which doesn't require scale, is particularly unique, and the slight thickness that spreads from below the mid-range makes you feel comfortable. The exterior is dull, rust, abrasions, etc., and there is a feeling of use (Ryo Mizusaki)
Maintenance information: 2024.6.21 Maintained (vacuum tube sockets, block capacitors, electrolytic capacitors, oil capacitors, SP and RCA terminals, semi-fixed VR, fuse holder replacement. Load test (8Ω load 1kHz 24.5W+24.5W), input/output waveform confirmation, impedance switching SW/gain VOL disassembly contact refinement, oxidation and vulcanization prevention grease coating. Input/output waveform confirmation, load test (1 kHz sine wave, 8 ohm load: 28 W+28 W, actual measurement), sound output test)
Accessories: copy of instruction manual
Main specifications: 30W+30W 50CA10 push pull W410 x H160 x D205 mm 13.8 kg
The disposal price has been reduced! Member prices are not applicable. 2024/4/22 sales price 128,000 yen Maintained! A famous machine 44 with an easy-to-handle RCA terminal added to the rear terminal of the Quad control amplifier. The British QUAD's small preamp is a perfect balance between the freshness and richness of character. You can enjoy a calm, high-quality sound when paired with the same speakers made in England (Murakoshi Yoichi)
Maintenance information: 2024.4.18 maintenance (internal all checks, power supply filter C ± B bypass C replacement, balance VOL cut off sound → cleaning, check each board)
Accessories: 2 DIN input cords, power cord, instruction manual (copy)
Main specifications: 2 LINE inputs, 2 TAPE2 systems (DIN input or more), 1 PHONO input system, Phono sensitivity 1m/3m/10mV switching W321 x H103 x D203 mm 4 kg
The disposal price has been reduced. Member prices are not applicable. 2024/4/17 sales price 128,000 yen Maintained! Quad control amplifier The famous machine 44 has been refreshed by changing the back terminal to an RCA specification that is easy to handle. It's a perfect balance between freshness and richness. When paired with speakers made in England, you can enjoy a calm, high-quality sound (Daiki Goto)
Maintenance information: 2024.4.17 maintained (internal all check, B-filter capacitor deterioration, +- 18V drive Tr leak large, rectifier diode failure instability → replacement power SW spark killer broken → replacement. C and R checks within each board. *There is a sound leak at main volume 0. (Create 2 1.5m DIN5 cables)
Accessories: copy of instruction manual, power cable, connection cable
Main specifications: 2 LINE inputs, 1 PHONO input, 1 phono sensitivity, 1m/3m/10mV switching, W321×H103×D203 mm
Pair tube VT-115 equivalent tube, high durability tube, metal tube, tea base, measured value 46/44 (rejected value 25) with white box ※Pairs are determined based on GM values measured with the TV-7 testing machine (Kojima Yosuke)
Accessories: white box
D terminal/RCA-D terminal/RCA cable 1.0 m There is a feeling of use due to appearance, dullness, friction, etc. (Kobayashi Hitoshi)
Maintenance information: RCA operation checked, D terminal unchecked
Accessories: original box
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
Jack (female) to RCA cable 2.0m pair plug are both ends made by Neutrick and are originally microphone cables, so sound loss is good. There is an appearance, threads, and a feeling of use (Kobayashi Hitoshi)
Maintenance Information: 2023.9.16 Conductivity Confirmed
Accessories: none
Main specifications: Electromagnetic shielded microphone cable, 4 cores, outer diameter: 6.0 mm
Unspecified XLR (male) to RCA (female) conversion plug only. The appearance is good with little feeling of use (Kobayashi Hitoshi)
Maintenance information: 2023.8.14 Confirmation confirmed
Accessories: none
Main specifications: No. 2 HOT
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
1 sold in USA JAN tea base measurement 90 (rejection value 48) with original box ※ Measured value is gm value measured with tv-7 test machine (Yosuke Kojima)
Accessories: original box