608 reviews analysed
Rank
Product Name
Score
1. Nobsound NS-10P Mini Vacuum Tube Preamp Audio Hi-Fi Stereo Pre-Amplifier Treble & Bass Control
Feature
- Notice: ① Preamplifier needs to work with amplifiers or active devices
- ② Not PHONO preamp and can’t be used for record players
- Excellent sound performance
- No background noise
- Warm and soft tube sound
- Sound quality enhancement
- Pure tube preamplifier
- Suitable for all amplifiers and music types
- With independent treble, bass and volume control
- Vacuum tubes can be replaced by various models
- Mini size and exquisite appearance
- CNC aluminum shell and front panel
- Blue tube light
- Mellow and solid touch feeling
2. Nobsound Vacuum Tube Bluetooth Power Amplifier ; 2.0 Channel Mini Tube Amp ; Wireless Audio Receiver ; Stereo HiFi Headphone Amplifier ; 50W x 2 / Bluetooth 4.2 / TPA3116D2 / NE5532 / APT-X (Black)
Feature
- Can achieve 50W x 2 strong power and 1.2MHz modulation power and <
- 0.1% distortion. Bluetooth 4.2 can ensure stable and high quality wireless music transmission. Support APT-X. 18-month warranty.
- Adopt 6J4 vacuum tube. Sound is soft, thick, sweet and transparent. Convenient to replace other compatible tubes like 6136；6AC7；6AU6；6BX6；6N8
- EF80；EF94；6M-H1；TM12；6Ж4П；6С2П. Totally no background noise and no pop sound.
- Can be used as speaker power amp / headphone amplifier / wireless receiver. Its compact size make it suitable for most scenarios. It can be easily placed on your desktop or equipment.
- Equipped with 24V power supply, max output power up to 50W*2, can easily drive most home speakers. Gold-plated RCA / Banana interface can avoid sparks when power plug in. With overheat, overload and short circuit protection.
- With Bass and Treble Control, can work with MP3, CD, DVD,TV, PC, iPhone, Smart phone, Android phone, iPad, Tablets, Turntable, etc.),It is also suitable for Bookshelf/ Computer/ Desktop/ Theater audio system and so on, different matching brings you hear beautiful music anytime and anywhere.
3. Nobsound Little Bear FU32(832A) Vacuum Tube Headphone Amplifier ; Mini HiFi Stereo Preamp
Feature
- Not only as a headphone amplifier, compatible with wide impedance range(12-200Ω), but also as a preamp for your other power amplifier, convenient and efficient to improve sound quality.
- 1*3.5 mm stereo jack input, can be connected to computer, CD, mobile phone and lossless player. 2*3.5 mm output can also be connected to digital amplifiers and active multimedia audio devices.
- Default Beijing FU32 vacuum tube, can be upgraded to GU-32/832
- Default NE5532 op amp, can be upgraded to OPA2604, JRC4558, OPA2132, OP275 and so on for enjoying different tones.
- Mini size with attractive appearance, compact design makes it suitable for desktop audio system.
- Prompt and courteous customer service.1 year warranty and life technical support.
Description
Notice:
Input signal overload may cause distortion and noise. When this happens, please turn down the volume of the audio source until no noise and then adjust proper volume through the amp itself.
Parameters:
Audio input: 1*3.5mm Jack
Audio output: 2*3.5mm headphone jack(one for 12-40Ω headphone and one for 40-200Ω headphone)
Power supply: DC 12V@2A(5.5/2.2mm)
Tube model: Beijing FU32
Op amp: NE5532
Color: black
Dimensions: (L)86 mm *(W)86 mm *(H)43 mm(Excluding the tube)
Net weight: 320g
Packing List:
1*Headphone Amplifier
1*Power Supply
1*FU32 Tube
Noise may be resulted from:
1. Low-quality audio cables, poor audio source can cause the static noise.
2. The tubes not are plugged well on the tube sockets or the two red wires are not inserted to FU32 tube.
3. Devices like routers, mobile phones will also interfere in the audio signal and may cause static noise.
4. Sabaj PHA3 Vacuum Tube Headphone Amplifier 2X6J9 Low Ground Noise Integrated Stereo Amp Audio HiFi Output Protection for Headphone
Feature
- Using military grade tube 2*6J9-J for pre amplifier
- replaceable design,can be change the tube for E180F, 6ж9П, EF861, and 6688 for different sound style.
- Large current headphone driver parallel NJM4556*2,it gets much bigger driving current.
- Low Ground Noise: There’s no buzzing or ringing when you use our amp! We feature a high-grade microprocessor that controls the relay while its being switched on and off, achieving a low-ground noise power circuit.
- Aluminum CNC housing with stylish design,high quality components and using relay to mute audio.
- Semi-Set Tube Design: As a safety measure, the high temperature portion of the tube is strategically placed inside of the amp and out of reach.(Please plug the power supply after all the connection been done for safety)
5. Nobsound Little Bear P10 HiFi MOSFET Class A 12AU7 Tube Multi-Hybrid Headphone Amplifier Stereo Audio Preamplifier Preamp
Feature
- 12AU7 vacuum tube MOSFET Class A amplifier without any OP amp or IC
- Pure warm and sweet tube sound
- Unlike acrylic shell, PCB shell is more expensive and solid and has fine anti-interference and shielding
- Input: 3.5mm (phone/MP3/palyer) & RCA (CD player/computer)
- Output: 3.5mm&6.5mm headphone port & RCA
- RCA LINE OUT: Can be used as a preamaplifier for other amplifiers or active speakers
- 12AU7 vacuum tube: can be replaced by 12 series and 6 series tubes (with a switch to select)
6. SMSL T2 Vacuum Tube Headphone Amplifier, Mini Audio HiFi Stereo Integrated Amp
Feature
- Low Ground Noise
- There’s no buzzing or ringing when you use our amp! We feature a high-grade microprocessor that controls the relay while its being switched on and off, achieving a low-ground noise power circuit.
- Sophisticated Design
- Our amp is constructed from top of the line, scratch resistant CNC aluminum.(Warm tip:When you use this product for a long time,please do not touch it by your bare hand,it may very hot,but please don’t worry this is a normal phenomenon.)
- High Drive Current
- Our specially designed power output boasts a larger than average drive current.(Note:please know that this headphone amplifier not for intense music)
- Semi-Set Tube Design
- As a safety measure, the high temperature portion of the tube is strategically placed inside of the amp and out of reach.(Please plug the power supply after all the connection been done for safety)
- Small Compact Size & 2 X 6J9 J-Grade Tubes
- The dimensions of our amp are 2.9inX3.5inX1.02in, and you can replace the stock tubes with E180F, 6ж9П, EF861, and 6688 tubes if you wish to be able to cue music.
7. Little Dot I+ 6JI X2 Tube Standard Hybrid Headphone Headphone Amp Pre-Amp Tube Amplifier (LDI+)
8. Nobsound NS-02E Vacuum Tube Headphone Amplifier Stereo HiFi Earphone Pre-Amp DIY (Black)
Feature
- The Nobsound NS-02E can provide soft and warm sound while maintaining its exceptional clarity.
- The default tube is 6N3, which can be easily replaced with 6A8Q, 2C51, 5670, 5185, 6385, 6185, WE396, ECC 42, 6H3N, 6H3II, ECF82, 6CC42.
- The Nobsound NS-02E can be paired with your preamp, smart phone, computer, iPod, stereo system, and other audio device as well as your favorite headphones.
- The Nobsound NS-02E can also be used as a tube pre-amplifier.
- The affordable price makes both Hi-Fi freshmen and Hi-Fi veterans can enjoy it.
9. Nobsound 6P1 6.8W x 2 Vacuum Tube Power Amplifier; Stereo Class A Single-Ended Audio Amp Handcrafted
Feature
- This Class A single-ended vacuum tube amplifier adopts hand welding to ensure the true reality of the sound quality (with headphone amp function ASIN: B076CC92BX).
- This amplifier adopts transformer parallel output to reduce its internal resistance by half and achieve doubled improvement on its power.
- Using antimagnetic transformer covers to shield current interference and achieve much lower static noise.
- Its sound output is full of analog style. The bass part is deep and powerful and the vocal part is sweet and intoxicating.
- It has a classic and graceful appearance. The VU meters and vacuum tubes makes it more elegant and attractive.
10. Headphone Amplifier Vacuum Tube Preamplifier Mini Hi-Fi Stereo Audio with Low Ground Noise Output Protection for Headphones Fosi Audio P2
Feature
- ????❤Excellent sound performance: Low ground noise, built-in output protect circuit, no buzzing or ringing noise, Audiophile-level sound quality, exclusively designed for the customers who pursue HiFi sound
- and safe for your expensive headphones
- ????❤Stereo and Preamplify: Headphones amp also can be used as stereo preamp, Parallel 3.5mm and RCA stereo inputs, 6.35mm headphone output, include a 6.35mm to 3.5mm adapter
- ????❤High-performance: P2 is a Hi-Fi tube headphone amp, 2 X 6K4 J-Grade tubes can easily power high-performance headphones including the HD580, HD600, HD650, K701, K702, Q701, and many more, recommend 32-600ohm headphones
- ????❤Easy replace tube: Tubes can be replaced by 6j1/6J4/GE5654/6AK5/6*1n/ E180F/6ж9П/EF861/6688 tubes etc
- ????❤Exquisite appearance: Small Compact Size, All aluminum alloy shell and come with a 18-month manufacturer’s warranty.
Conclusion
By our suggestions above, we hope that you can found 12Au7 Vacuum Tube Multi Hybrid for you.Please don’t forget to share your experience by comment in this post. Thank you!
