※ 6 months warranty. This is a relatively rare triode transistor amplifier. A powerful sound with clear contours shows performance above the price. Recommended for those who want to produce a good cut in rock or pop. There are fine lines and abrasions (Sasaki Shota)
Maintenance Information: 2021.6.5 Operation confirmed
Accessories: Power cable
Main specifications: Line dedicated output 100W+100W (8Ω) Size W440 × H100 × D330mm Weight 9 kg
※Currently sold super three-link single amplifier. The white exterior has a clean feel and looks great. It has a good response and reproduces crisp bass. As for the exterior, there are no noticeable scratches. Serial 860679 (Tamura Eiji)
Maintenance information: 2023.9.17 Operation confirmed
Accessories: instruction manual, power cable
Main Specifications: PCL86 Single Vacuum Tube Amplifier 3W+3W Super Triode Connection Circuit Input Switching Select Knob W180 x H145 x D305mm Weight 4.6 kg
*Since there are times when contact with the selector is poor, it is sold at a low price as is. Using the acclaimed 6BQ5 (5-pole tube), triode sound is achieved with luxurious UL connection operation. Equipped with 2 headphone terminals, it is an amplifier that can be used sufficiently as a headphone amplifier. The terminals and knobs are dull (Sasaki Shota)
Maintenance information: 2024.1.20 Operation confirmed
Accessories: power cable
Main specifications: Tubular headphone jack built-in premain amplifier, 3W+3W, 30-3kHz, W160 x H150 x D350 mm, weight 8.5 kg
*Currently on sale. ATTOZEN vacuum tube amplifier. It's a very cost-effective car with smooth sound with little listening fatigue that you wouldn't think is in this price range. The output is small (6W+6W), so we recommend using a high-efficiency speaker. The exterior has scratches and a feeling of use (Katsutsugu Hiura)
Maintenance information: 2023.1.2 operation confirmed
Accessories: power cable
Main specifications: vacuum tube EL34B×2, 6N2J×2, 5Z4PJ×1 rated output 6W+6W (8Ω) frequency characteristics 30Hz~38kHz input terminal RCA2 system dimensions W310xD258xH163mm weight 9.5 kg
※ There is no problem with the operation, but since it is a kit model, it will be handed over as is. TU-879S equipped with KT88EH. It is also recommended as an introduction to vacuum tube amplifiers. The exterior is dull. (YONEJIMA Satoshi)
Maintenance information: 2023.11.4 operation confirmed
Accessories: instruction manual
Main specifications: 2 line inputs W154 x H150 ✕ D400 mm, weight 6.5 kg
※Operation has been confirmed, but since it is inexpensive, it is currently sold. The remote control is missing. A pre-main amplifier for the Cain Laboratories line only. The output tube is 6V6GT and has an output of 10W. There is paint peeling around the back corner of the bottom (Yoichi Murakoshi)
Maintenance information:2023.8.24 sound output confirmed
Accessories: power cord
Main specifications: 10W x 10W (8Ω) vacuum tube 6V6 x 4, 12AX7 x 3, 12 AU7 x 2 W310 x H185 x D75 mm 13 kg
A vacuum tube premain amplifier from Oto Kobo, a manufacturer in Kanagawa prefecture. Deluxe type that has been changed to a bass boost function and a gold-plated SP terminal. I tried playing it at the store, but it sounds more than the size, and there is a sense of volume in the low frequency without bass boost, and the impression is that the resolution is exceptionally high compared to old vacuum tube amplifiers. It is also recommended for getting started with ball amplifiers and sub units. You can also enjoy the beautiful vacuum tube lighting function by appearance (Shota Sasaki)
Maintenance information: 2022.8.12 Sound output operation confirmed
Accessories: manual, power cable
Main specifications: Super triode connection 3W+3W (8Ω) Headphone output 50mW+50mW (at 60Ω load) W180 × H148 × D265mm 5.5 kg
A palm-sized vacuum tube amplifier Ernestro's EX model that spread the name of Carrot One. The sound is smooth and textured like a vacuum tube. This amplifier is just the right size for desktop etc. There are no noticeable scratches on the appearance. (Eiji Tamura)
Maintenance information: 2021.12.6 operation confirmed
Accessories: Instruction manual, AC adapter, banana plug, connection cable
Main specifications: Output: 6W+6W (8Ω) 15W+15W (4Ω) S/N: 98dB W67 × H115 (including vacuum tube) × D125 (including protrusion) mm
Vacuum tube primain amplifier with USB DAC for Hi-Res Enjoy high resolution music playback using a computer (Windows/Mac) and USB connection. The built-in USB DAC is also available on iPhone/iPad. *The connection will be Mini B. Equipped with an original designed large output transformer, it reproduces authentic vacuum tube sound larger than the size. In appearance, there is a dull appearance. Serial 0601028 (YONEJIMA Satoshi)
Maintenance information: 2021.6.26 working confirmed
Accessories: Instruction manual, power cable, connection cable, original box
Main specifications: EL84 (6BQ5) ×2, ECC83 (12AX7) × 1, Class A operation 3.5W+3.5W (8Ω) frequency characteristics 20Hz to 50kHz Input: 24bit 96kHz USB DAC Mini B Sampling Frequency: 32, 44.1, 48, 88.2, 96kHz Bit Resolution: 16bit/24bit/32bit (DSD) Audio Data Format: PCM/ DSD64 (DSD to PCM) W200 x H168 x D260mm Weight 7kg
The sound output has been confirmed, but since it is inexpensive, it is currently sold. Line-only tube premain amplifier with smartphone input function by Blutooth. Although it is inexpensive, it uses KT88 for output and boasts a large output of 35W (Murakoshi Yoichi)
Maintenance information:2023.8.25 sound output confirmed
Accessories: power cord
Main specifications: 35W+35W vacuum tube KT88 x 4, 12AU7 x 2, 12AX7 x 1 W340 x H181 x D255 mm 19 kg
A vacuum tube premain amplifier with an attractive compact design. It is equipped with a USB terminal and is compatible with PC AUDIO. The knob on the front of the amplifier section allows you to adjust the volume and switch the NF amount. You can enjoy it according to the location and interior. The exterior is dull. Serial 09010605G (Satoshi Yoneshima)
Maintenance information: 2022.11.4 operation confirmed
Accessories: power cord, connection cable
Main specifications: EL-84 (6BQ5/7189A/6P14) x 4, 12AX7 (ECC-83) x 2 output 12W x 12W W166 x D204 x H190 mm 6.5 kg
※ It is inexpensive because the hood is missing. Equipped with a 6V6, this is a high cost performance model that combines mid-range thickness and delicacy. It has evolved into a more detailed sound than before. The exterior is dulled and has small scratches throughout. Serial 0305064 (Satoshi Yonejima)
Maintenance information: 2022.12.3 operation confirmed
Accessories: power cord
Main specifications: 10W+10W (4 to 16Ω) CLASS ABP-P vacuum tube 6v6 (6V6GT) ×4, 12A × 7 (ECC-83) ×1, 12AU7 (ECC-82) ×2 External dimensions W266 × H150 × D70 mm Mass 8 kg
I cut the price! 2021/3/18 Selling price 45,000 yen Maintenance! Small amplifiers using vacuum tubes. Linear shape is a new design theme, a product that features a beautiful form and beauty that features square design that eliminates curves. The appearance is generally beautiful. (Tomoho Asaine)
Maintenance Information: 2021.3.18 YUKIM Maintenance (Preamp Board Replacement Vacuum Tube Bias Adjustment Operation Check)
Accessories: original box
Main Specifications: Output 25W+25W (4Ω) 12W+12W (8Ω) S/N Ratio 98dB Dynamic Range 98dB W76 × H75 × 150mm 1.1 kg
*Currently sold. Luxman vacuum tube hybrid premain amplifier. This product was designed as an upper model of the LXV-OT7. The vacuum tube ECC802S on the front part has been increased in size compared to all models, the input terminals are gold-plated, the speaker terminals are banana compatible, and some other parts have been changed to solid aluminum, so the finish is particular about appearance. (FUJISAWA KOSHI)
Maintenance information: 2024.1.23 Operation confirmed
Accessories: AC adapter
Main specifications: output 5W+5W (4Ω) input RCA2 system
It is characterized by a clear tone with no stains like a recent tube amplifier. In addition to the warmth unique to the tube type, it makes the POPS system sound bright and cheerful with a wide range of clear sound quality. There is a line wound, dullness (Shota Sasaki)
Maintenance information: 2021.9.10 operation confirmed
Accessories: power cable
Main specifications: 68BQ5 × 4, 12AU7 × 1, 12AX7 × 1 Input line 2 systems 4Ω, 8Ω Output 12W+12W (8Ω) W330 × H160 × D240 mm Weight 9 kg
※There is no problem with the current operation, but since it is cheap, it will be handed over as is. Concert Master vacuum tube premain amplifier. This is YAQIN's product for Japan. The space-saving design makes it easy to enjoy vacuum tube sounds. Also, I recommend it to those who are thinking about entering a vacuum tube amplifier. It has an appearance, dullness, and a feeling of use (Kobayashi Hitoshi)
Maintenance information: 2023.8.24 Operation confirmed
Accessories: none
Main specifications: EL-84 (6BQ5 compatible) x 4, 12 AT7 x 2 motorcycle ass W380 x H160 x D290 mm 9.5 kg (actual measurement)
A compact vacuum tube amplifier with excellent cost performance. It is an easy-to-use amplifier that is equipped with a DAC such as USB input and is compatible with headphones. The appearance is dull. (TAMURA Eiji)
Maintenance information: 2022.3.5 operation confirmed
Accessories: Instruction manual, AC adapter
Main specifications: Vacuum tube used: GE/6080WC × 1, TOSHIBA/2E03 × 2 USB: up to 48kHz Optical input: up to 96kHz W113 × H135 × D240 mm Weight 2.7kg
Maintained! Vacuum tube power amplifier from Chinese manufacturer SPARK. It is a push-pull configuration using 4 EL-84 power tubes Mullard. The sharpness and thickness of the mid-range typical of a tube ball make jazz sound like jazz. The exterior has line scratches and some oxidation. Serial 9030949 (Miura Kimiya)
Maintenance information: 2022.12.7 Maintained (speaker terminal RCA jack damaged replacement electrolytic capacitor puncture and deterioration main volume contact deterioration each replacement solder replacement switch cleaning due to deterioration. Bias and output voice check interior and exterior cleaning. (Output: approx. 12W at 8Ω load)
Accessories: power cable, connection cable
Main specifications: 12W+12W Body: W162 x H123 (including vacuum tube protrusions) x D198mm 4.4 kg Power supply unit: W160 x H59 x D161 mm 3.0 kg
A vacuum tube premain amplifier with astonishing cost performance. It makes a stiff speaker sound supple and with a high degree of analysis. The appearance has a feeling of use such as dullness. (Asaine Tomoho)
Maintenance info: 2022.8.19 Operation confirmed
Accessories: Instruction manual (English, Chinese), power cable
Main specifications: 40W+40W (8Ω) Vacuum tubes used: 12AT7 × 4, EL34-B × 4 inputs 4 systems (no phono input) Size W310 × H175 × D450 mm Weight 17,6 kg (all measured value)
* Currently sold item. A small amplifier using a vacuum tube. Linear shape is a new design theme, and it features a beautiful form and beautiful sound that features a square design that eliminates curves. There is white noise and pop noise when the power is ON/OFF, but it is the current situation due to the product limit (Atsushi Takasaki)
Maintenance info: 2022.7.23 Operation confirmed
Accessories: instruction manual, power cord, original box
Main specifications: Output 25W+25W (4Ω) 12W+12W (8Ω) S/N ratio 98dB Dynamic range 98dB W76×H75×150mm 1.1kg
※Since the hood is missing, it is inexpensive. A high cost performance model equipped with 6v6 that combines the thickness and delicacy of the mid-range. The sound has evolved into a more detailed sound than before. On the exterior, the paint is bald and dull. Serial 0305064 (Yonejima Satoshi)
Maintenance information: 2023.2.25 operation confirmed
Accessories: power cord
Main specifications: 10W+10W (4 to 16 ohms) CLASS ABP-P vacuum tube 6v6 (6V6GT) x 4, 12A x 7 (ECC-83) x 1, 12AU7 (ECC-82) x 2, external dimensions W266 x H150 x D70 mm, mass 8 kg