* Because it is inexpensive, it will be delivered as it is. A compact tube preamp kit with a simple configuration. The bouncy and straight sound quality is not thought to be small. In addition to the line with volume and balance control, the phono can also be switched between MM/MC (Yuki Yamato)
Maintenance information: 2021.11.8 Operation confirmed
Accessories: Power cable
Main specifications: Vacuum tube/FET (signal system) 6189W (12AU7) × 3, 2SK170 × 4 Input terminal PHONO × 1 (MC/MM is switched with a switch on the rear panel), LINE × 2, TAPE (MD) ) × 1 W130 × H125 × D248mm (including protrusions) Weight 1.8 kg
※ Present sale item. High-fidelity vacuum tube preamp made in China. With 3 stereo RCA and 1 XLR input, 2 stereo RCA and 1 XLR output, compatible with most analog audio devices. Adopts 4 vacuum tubes for a soft and mellow tone. (Takasaki Takasaki)
Maintenance Information: 2021.2.17 Operation confirmed
Accessories: Power cord
Main specifications: Vacuum tube 6N11×4 W430 × H116 × D330 (excluding protrusion) mm 9.3kg
※Since it is inexpensive, it will be handed over as is. Compact size vacuum tube preamp. Simple configuration of a single-stage negative feedback circuit. You can easily obtain the warm tone unique to vacuum tube preamps. It is suitable for making small speakers sound quietly. The exterior has bumps and line scratches. (MIURA Kimiya)
Maintenance information: 2023.8.23 Operation confirmed
Accessories: power cable
Main specifications: National7308/EI88cc × 2 W350 × D200 × H56 mm 1.3 kg
* Currently sold items. Tubular preamplifier with phono equalizer. It is suitable as an introductory machine for vacuum tube amplifiers. MM/MC support that is also nice for analog users (Itsuro Mizushima)
Maintenance information: 2022.3.25 operation confirmed
Accessories: None
Main specifications: Vacuum tubes used 12AU7/2 pieces W252 × H73 × D270mm 3.1kg
Spherical preamp with phono equalizer It is suitable as an introductory machine for vacuum tube amplifiers. It is compatible with MM/MC which is also nice for analog users. There is a scratch on the top plate (Tetsuji Oikawa)
Maintenance Information: 2021.3.14 Operation confirmed
Accessories: instruction manual, power cable
Main Specifications: Used vacuum tube 12AU7/2 W252 × H73 × D270mm 3.1 kg
* It is currently sold without warranty for self-made amplifiers. It is a 2CH vacuum tube preamp using WE396A. It gives out the unique warmth and soft tone that vacuum tubes possess. The appearance has a feeling of use such as dullness. (Morning Tomoho)
Maintenance information: 2021.12.14 operation confirmed
Accessories: none
Main specifications: Vacuum tube used WE396A Size W300 × H100 × D232 mm Weight 2.3kg (actual measurement)
*Currently on sale. 115V specification (operation confirmed at 100V). Tube preamp with phono equalizer. It is suitable as an introduction to vacuum tube amplifiers. MM/MC compatible, great for analog users (Itsuro Mizushima)
Maintenance information: 2022.12.11 sound output confirmed
Accessories: power cord, instruction manual
Main specifications: 12AU7/2 vacuum tubes used, W252 x H73 x D270 mm, 3.1 kg
*Currently on sale. A control amplifier dedicated to K.A.Lab's tubular line that hasn't arrived easily. There is stickiness and richness in the mid range, and the tuning is easy to listen to. The cost performance is high. If you have been looking for it, please take this opportunity! There are thin circular stains on the exterior, dullness, and top plate (Kobayashi Hitoshi)
Maintenance information: 2023.3.20 operation confirmed
Accessories: power cable
Main specifications: vacuum tube used 59EX9×2 6X4WA ×1 W330 × H95×D280mm 6.26 kg (actual measurement)
* Currently sold item. A tube preamplifier with a phono equalizer. It is suitable as an introductory vacuum tube amplifier machine. MM/MC compatible that is great for analog users (Itsuro Mizushima)
Maintenance information: 2022.8.8 operation confirmed
Accessories: power cable
Main specifications: Vacuum tubes used 12AU7/2 bottles W252 × H73 × D270 mm 3.1 kg
*Currently on sale. A control amplifier dedicated to K.A.Lab's tubular line that hasn't arrived easily. There is stickiness and richness in the mid range, and the tuning is easy to listen to. The cost performance is high. If you have been looking for it, please take this opportunity! On the exterior, there is a circular mark on the top plate, and there is a feeling of use such as dirt (Tomonori Asae)
Maintenance information: 2023.5.2 operation confirmed
Accessories: power cable
Main specifications: vacuum tube used 59EX9×2 6X4WA ×1 W330 × H95×D280mm 6.26 kg (actual measurement)
* Currently sold item. A tube preamplifier with a phono equalizer. It is suitable as an introductory vacuum tube amplifier machine. MM/MC compatible that is great for analog users (Itsuro Mizushima)
Maintenance information: 2022.8.8 operation confirmed
Accessories: power cable
Main specifications: Vacuum tubes used 12AU7/2 bottles W252 × H73 × D270 mm 3.1 kg
It is version 3 (3rd generation) of 3 input systems. A control amplifier that is simple yet has outstanding cost performance. It's a sound that makes you feel the warmth of a vacuum tube slightly. The dullness of the top plate is slightly noticeable (Fujisawa Koshi)
Maintenance Information: 2022.5.18 Operation confirmed
Accessories: None
Main specifications: Input 3 systems (line only) Pre-out 2 systems W286 × H77 × D230 mm 2.6 kg