* There is no problem with operation, but since it is inexpensive, it is currently sold. Musica's vacuum tube premain amplifier. This is a limited edition of 50 units with high sound quality based on the INT62 using the power stage of the company's POW62. You can enjoy compact yet powerful and warm analog sound. As for the exterior, there are scratches on the top plate. (Miura Kimiya)
Maintenance Information: 2022.10.12 Operation confirmed
Accessories: instruction manual, AC adapter
Main specifications: output 50W+50W frequency characteristics 1Hz to 100kHz input RCA3 system W217 × H65 × D197mm
*It is inexpensive for missing connection cables. Integrated amplifier with USB DAC. It realizes a high output of 25W × 2 (4Ω) and is equipped with a USB DAC that supports 96 kHz/24 bit input, enough to be needed. The ringing more than it looks is attractive. (Fujisawa Yukishi)
Maintenance Information: 2021.6.13 confirmed operation (only LINE input tested)
Accessories: Instruction manual, AC adapter
Main specifications: USB version 2.0 digital input microUSB x 1 analog input RCA x 1 analog output headphone output x 1, LINE output × 1, speaker output supported frequency 96kHz/ 24bit size W50 x H33 x D78mm (not including protrusions)
*Currently sold. The rubber feet and AC adapter are missing, so it's cheap. A Luxman vacuum tube hybrid premain amplifier sold from the Mook book series of Ongakunotomosha Stereo magazine. A hybrid configuration with a 12AU7 vacuum tube in the front part and an A/B grade analog amplifier in the power section. You can easily enjoy the vacuum tube sound. (FUJISAWA KOSHI)
Maintenance information: 2024.1.23 Operation confirmed
Accessories: No accessories
Main specifications: output 5W+5W (4Ω) input RCA2 system
A single amplifier using 6L6 as the output tube. The first stage is 6N2. It comes with a volume and input selector. Both inputs are line-only. There is an LP notation on the back, but there is no phono equalizer in it. When a CD is connected, there is no noise even if it is set to full volume, but if it is close to full volume in an open state without connecting it, noise will occur. It's currently sounding well, but since it's cheap, it's currently sold without a guarantee (Yasuhito Koshihama)
Maintenance information: 2022.9.1 Over-the-counter operation checked
Accessories: power cable
Main specifications: W283 × H160 × D242 mm Weight 6.5 kg
※Some lamps are out, but this is the current situation. It is a “tuning model” in which vacuum tube premain amplifiers with single-ended pure A class operation were selected and matched from 500 vacuum tube pairs, then measured according to each individual amplifier and recombined based on actual measured values! It has achieved a significant improvement in localization to the extent that you can tell the difference after listening, and instantaneously invites listeners to the sound source playback space. One lamp that illuminates the vacuum tube has run out (Miura Kimiya)
Maintenance information: 2023.7.22 Operation confirmed
Accessories: instruction manual, original box, transformer protection cage (optional), AC adapter
Main specifications: rated output 2.5W x 2ch compatible speakers 4Ω to 8Ω (2 systems) vacuum tube 6J1 x 2 6P1 x 2 (spare vacuum tubes 6J1 x 2, 6P1 x 2 included), input terminal PHONO (MM), LINE external dimensions W184 mm x H105 mm x D158 mm Weight: 1.7 kg
price cut! 2021/7/8 selling price 22,800 yen*Current sale item. Racksman vacuum tube hybrid primain amplifier released from the Mook book series by Music no Yusha and Stereo magazine. Hybrid configuration is a vacuum tube 12AU7 in the pre part and A/B grade analog amplifier for the power part. Feel free to enjoy the vacuum tube sound. There are scratches and threads in appearance. (YONEJIMA Satoshi)
Maintenance information: 2021.7.8 working confirmed
Accessories: AC adapter
Main specifications: Output 5W+5W (4Ω) input RCA2
A Chinese-made vacuum tube amplifier compatible with Bluetooth 5.0. A single-ended, pure Class A power amplifier using the FU-50. It is a compact and easy to use one. There are small scratches on the exterior. (Tamura Eiji)
Maintenance Information: 2022.10.12 Operation confirmed
Accessories: antenna, power cable
Main specifications: 8W+8W load range 4Ω to 8Ω frequency band 20Hz to 25kHz W304 x H160 x D290 mm weight 12 kg
*Currently sold. It is a “tuning model” where each vacuum tube pair is selected from 500 vacuum tubes and matched, then measured according to each individual amplifier, and recombined based on actual measured values! Single-ended vacuum tube premain amplifier with pure Class A operation. It achieves a drastic improvement in localization to the extent that you can tell the difference by listening to it, and instantly invites the listener to the sound source playback space. There is no spare vacuum tube. Serial S0749 (Takasaki Atsushi)
Maintenance information: 2023.12.31 operation confirmed
Accessories: AC adapter, original box, instruction manual
Main specifications: rated output 2.5 W x 2 ch compatible speakers 4 ohm to 8 ohm (2 systems) vacuum tube 6J1 x 2, 6P1 x 2 input terminal PHONO (MM), LINE W184 x H105 x D158 mm 1.7 kg
The price has been reduced. 2022/7/19 selling price 22,800 yen*Currently sold item. A vacuum tube hybrid premain amplifier made by Luxman released by the Mook book series of Music Noyusha Stereo magazine. A hybrid configuration with a vacuum tube 12AU7 in the pre part and an A/B class analog amplifier in the power part. You can easily enjoy the vacuum tube sound (Itsuro Mizushima)
Maintenance info: 2022.7.19 Operation confirmed
Accessories: instruction manual, power cable
Main specifications: Output 5W+5W (4Ω) input RCA2 system
* Currently sold goods. A Japan-made vacuum tube premain amplifier made by Shiroshita Kogyo. The design is Scandinavian chic and fashionable, but it is a Japanese-style spec with a set of necessary functions for a small size. The sound is also good, it is a crisp sound quality without being too round (Hirotsugu Kondo)
Maintenance information: 2021.10.17 operation confirmed
Accessories: None
Main specifications: Used vacuum tubes 6BQ5 × 2, 12AX7 × 1, W200 × H120 × D292mm 3.85kg
*Currently sold. This is a Luxman vacuum tube hybrid premain amplifier sold by the Mook book series by Music Friends, Inc. Stereo magazine. It has a hybrid configuration with a 12 AU7 vacuum tube for the front part and an A/B grade analog amplifier for the power section. You can easily enjoy the sound of vacuum tubes. There are light threads on the exterior (Kimiya Miura)
Maintenance information: 2023.10.5 Operation confirmed
Accessories: AC adapter
Main specifications: output 5W+5W (4Ω) input RCA2 system
* Current sales items. A Luxman vacuum tube hybrid premain amplifier released from the Mook series of Music no Tomo Inc. Stereo magazine. A hybrid configuration of a vacuum tube 12AU7 in the pre part and an analog amplifier of A/B class in the power part. You can easily enjoy the vacuum tube sound. There are no noticeable scratches on the appearance. (Eiji Tamura)
Maintenance information: 2021.11.11 Operation confirmed
Accessories: AC adapter, booklet
Main specifications: Output 5W+5W (4Ω) input RCA2 system
※ Present sale item. LUXMAN vacuum tube hybrid primaine amplifier released from the Mook book series of Music no Tomosha and Stereo magazine. Hybrid configuration called vacuum tube 12AU7 in the pre-part and A/B class analog amplifier for the power part. Feel free to enjoy the vacuum tube sound. Appearance, there are scratches and Rubbed. (Satoshi Yonejima)
Maintenance Information: 2021.3.13 Operation confirmed
Accessories: AC adapter, instruction manual
Main specifications: Output 5W+5W (4Ω) input RCA2 system
It is a “tuning model” where each vacuum tube pre-main amplifier with single-ended pure A operation was selected from 500 vacuum tubes and matched from vacuum tube pairs that were further measured according to each individual amplifier and recombined based on actual measured values! It achieves a drastic improvement in localization that you can tell the difference after just listening to it, and instantaneously invites the listener to the sound source playback space. There is a line wound where the protective cage is placed (Kanai Hidetsugu)
Maintenance information: 2023.4.22 sound output confirmed
Accessories: vacuum tube/transformer protection cage (optional product), spare vacuum tube 6J1 x 2, 6P1 x 2, instruction manual, AC adapter, original box
Main specifications: rated output 2.5 W x 2 ch compatible speakers 4 ohm to 8 ohms (2 systems) vacuum tube 6J1 x 2 6P1 x 2 (spare vacuum tubes 6J1 x 2, 6P1 x 2 included) input terminal PHONO (MM), LINE external dimensions W184 mm x H105 mm x D158 mm Weight: 1.7 kg
* Originally it was a set with a speaker, but this time it will only be an amplifier. There is no problem with operation, but since it is inexpensive, it is as is. You can easily enjoy the warm sound peculiar to vacuum tubes. The exterior is dull and rubbed, some lettering is thinner, and there is oxidation in VR. Serial T-30901WHJP0089 (Satoshi Yoneshima)
Maintenance Information: 2022.10.14 Operation confirmed
Accessories: power cable
Main Specifications: 6V6GTX4 12AU7x1 12AX7BX2 Rated Output 3W+3W Input Impedance 100kΩ Load Impedance 6Ω W215 x D200 x H175mm 10.6 kg
This is Menyo's vacuum tube premain amplifier. Although it is small, the mid to high frequencies have a fresh feel and makes you hear vocals comfortably. How about a small system in a bedroom etc. There are abrasions and dullness on the exterior and transformer part (Kobayashi Hitoshi)
Maintenance information:2023.6.6 operation confirmed
Accessories: power cable
Main specifications: Vacuum tube used: EL84 × 4 6n3 × 2 8Ω 2 line input W140 × H260 × D210 mm 7.5 kg
Carot One's small pre-main headphone amplifier with an eye-catching orange coloring. The preamp section (headphone amplifier section) using a vacuum tube and the power amplifier section using a digital amplifier are completely independent, and a power adapter is used to supply power, but the power supply socket is separate, and the pre part and the power part are connected with a 3.5mm stereo mini jack. There is a feeling of use on the exterior such as small scratches and dullness (Tomonori Asae)
Maintenance information: 2023.2.14 operation confirmed
Accessories: instruction manual, power cable, connection cable
Main specifications: Vacuum tube 6DJ8/6922 series or 12AU7 series can be mounted 6W+6W (8Ω) 15W+15W (4Ω) input/RCA x 1, 3.5 mm stereo mini jack x 1 W65 x H115 x D125 mm 0.5 kg
※It was originally a set with a speaker, but this time it's just an amplifier. The hood is out of stock. There is no problem with operation, but since it is inexpensive, it will be handed over as is. You can easily enjoy the warm sound unique to vacuum tubes. The exterior has a feeling of use, such as dullness and small scratches. Serial T-30901WHJP0089 (Hiroki Asou)
Maintenance information: 2023.11.13 Operation confirmed
Accessories: power cable
Main Specifications: 6V6GTX4 12AU7x1 12AX7BX2 Rated Output 3W+3W Input Impedance 100kΩ Load Impedance 6Ω W215×D200×H175mm 10.6kg
Discount price! (former price: 27,800JPY)
Japanese-made vacuum bulb pre-main amp by Shiroshita Industrial. Besides its design like a Scandinavian furniture, essential features are all packed in this small body like many Japanese products.
*This is 100V model and needs a step down transformer to be used at higher voltage. We currently do not have service to change voltage of audio equipments.
The price has been reduced! 2024/3/3 sales price 29,800 yen Integrated amplifier with USB DAC. It achieves a high output of 25W x 2 (4Ω), and is equipped with a USB DAC compatible with 96kHz/24bit input, which is sufficient when necessary. More noise than it looks is attractive (Tomonori Asae)
Maintenance information: 2024.3.3 operation confirmed
Accessories: original box, instruction manual, AC adapter
Main specifications: USB version 2.0 output 25W x 2 (4Ω) digital input microUSB x 1 analog input RCA x 1 analog output headphone output x 1, LINE output x 1, speaker output compatible frequency 96 kHz/24 bit size W50 x H33 x D78 mm (not including protrusions)