*Currently on sale. Single amplifier using PSVANE300B. How about a 300B introductory machine at a reasonable price? There is no gap in volume and it works well (Oikawa Tetsuji)
Maintenance information: 2023.3.29 operation confirmed
Accessories: none
Main specifications: vacuum tube used PSVANE 300B RCA 5693 RCA 5V4G output 6W+6W W350 × H180 × D220 9.5 kg
Kyoto “Kimura no Kimura” special amplifier equipped with 2 x 300B (TRIODE). It combines traditional smoothness and delicate expressiveness, and is finished in a gem where you can feel the size and volume of space reproduction (Atsushi Takasaki)
Maintenance information: 2021.9.25 Maintained (input and output waveform confirmation, load test (1kHz sine wave. (At 8Ω load: 3.5W+3.5W actual measurement), sound output test.)
Accessories: Power cord
Main specifications: Output 3.5W+3.5W (measured) W200 × H220 × D400mm 14.5kg
Kyoto “Kimura no Kimura” special amplifier equipped with 2 x 300B (probably Chinese Akebono Electronics). It combines traditional smoothness and delicate expressiveness, and is finished in a gem where you can feel the size and volume of space reproduction (Atsushi Takasaki)
Maintenance information: 2021.9.25 Maintained (input/output waveform confirmation, load test (1kHz sine wave, 8Ω load: 3.5W+3.5W actual measurement), sound output test.)
Accessories: Power cord
Main specifications: Output 3.5W+3.5W (measured) W200 × H220 × D400mm 14.5kg
Below price (2021.3.8 selling price 198,000 yen) HEINTZ & KAUFMAN 300B x 2, Kyoto's “Kimura Audio” special amplifier. Combining traditional smoothness and delicate expressiveness, it is finished in a gem where you can feel the size and volume of space reproduction. (Takasaki Takasaki)
Maintenance Information: 2020.12.20 Maintenance (Vacuum Tube Replacement, Ripple Filter Circuit Board Ground Strengthening, Input/Output Waveform Confirmation, Running Sound Test (48h))
2020.4.26 Maintenance carried out (RCA terminal/ripple filter circuit capacitors/block capacitors/each replacement, input and output waveform confirmation, load test 1kHz sinusoidal wave, 4.5W+ at 8Ω load 4.5W, sound out test)
Accessories: Power cord (general purpose)
Main Specifications: Output 4.5W+4.5W (Measured) W200 × H220 × D400mm 14.5kg
Nobsound monoblock design power amplifier By using an independent power supply and signal line, the degree of separation is higher than most amplifiers on the market, and you can enjoy better sound quality. There are scratches on the exterior (Fujisawa Yukishi)
Maintenance information: 2024.4.13 maintained (VU meter replacement, vacuum tube pin cleaning, bias check, output sound check)
Accessories: power cord
Main specifications: 10 W x 2, input sensitivity, 500 mV to 2000 mV, input impedance, 100 KΩ, frequency response, 20 Hz to 30 kHz, signal to noise ratio 98 dB, W102 x H335 x D352 mm (excluding protrusions), weight 24 kg
The price has been reduced! 2022/8/4 selling price 100,000 yen Nobsound's monoblock design power amplifier. By using separate power and signal lines, the isolation is higher than most amplifiers on the market, and you can enjoy better sound quality. The exterior has a feeling of use such as slight dullness. (Hiroshi Aso)
Maintenance information: 2022.8.4 operation confirmed
Accessories: electric key cable
Main specifications: Vacuum tube used/Electron Tube 300B-98 Electron Tube 6S7GT Output power: 10W × 2 Input sensitivity: 500mV to 2000mV Input impedance : 100KΩ Frequency response: 20HZ-30KHZ Signal-to-noise ratio: 98dB Volume (W × H × D): 102 × 335 × 352 mm (excluding protrusions) Weight: 24kg
Disposal prices have been reduced! (Member discounts do not apply) 2022/11/13 Sales price 1,580,000 yen A 300B single amplifier from Kanno Seisakusho, famous for its research on Western Electric amplifiers. It is a mono amplifier equipped with the WE300B, and it was manufactured in '85. WE 300B is 79 years old on one side and unknown on the other. It is a Japanese western sound with a neat yet rich tone. It's a single amplifier, but it works great with 16Ω speakers! The exterior has paint baldness and dullness (Satoshi Yonejima)
Maintenance information: 2022.11.13 Maintained (replacement due to partial damage to the condenser, stripped coating, wire replacement, solder correction, bottom plate screw replacement, vacuum tube pin cleaning. Bias check output voice check. Output approx. 6.5W gain 24dB (XLR input is ② HOT ①③ GND unbalanced)
Accessories: There are no accessories
Main specifications: Vacuum tube used RCA/6SN7 × 1 · WE/300B × 1 output 8W W400 × H215 × D235 mm 14.5 mm