738 reviews analysed
Rank
Product Name
Score
1. FX AUDIO Vacuum Tube Preamp—Mini Electronic Hi-Fi Stereo 6K4 Tube Preamplifier with Bass & Treble Control DC12V Power Supply for Home Audio Player(Black)
Feature
- ♪ HIGH QUALITY MATERIALS—The chassis of the preamplifier is made of a solid aluminum alloy material, and uses accurate and stable integrated circuits and high-quality components to eliminate low-frequency noise and ensure clear sound quality
- The material of its PCB board is made of FR-4 insulation board and black immersion gold Craft, which has the characteristics of stable signal, high temperature resistance, long service life, and not easy to be oxidized.
- ♪ EXQUISITE APPEARANCE DESIGN—FX AUDIO pre-amplifier has a mini exquisite appearance and light weight, easy to carry around, its brushed texture surface and high-quality tube combine to appear more fashionable ,elegant and Classical.
- ♪ SEPARATE CONTROL OF BASS&TREBLE—The vacuum tube preamplifier can independently adjust the bass and the specific proportion components in high-frequency sound to perfectly achieve HiFi effects. At the same time it can maximize the rendering of an atmosphere like being in a music performance to satisfy your experience of different sound styles in pursuit sound quality.
- ♪ RCA INPUT & OUTPUT—From RCA output ,the preamp can also be directly connected to the audio source and active multimedia audio equipment or indirectly connected to passive audio through the power amplifier(The item includes RCA cable).
- ♪ NOTE—The item just is a tube preamp, not a power amplifier or phono amplifier. Because it is a household circuit design, the home theater tube preamp can not be used in cars, turntables or passive speakers, nor can it directly work for headphones, speakers and can not be used as a phono amplifier.(Only suitable with 12V power cord).Package Include: 1 x tube preamp, 2 x 6K4 tubes,1 x power supply, 1 x RCA cable,1 x user manual, 1 x security card/1 year warranty
2. 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.
3. Mini 6J1 Vacuum Tube Preamplifier Hi-Fi Stereo PreAmp Treble Bass Control Upgrade
Feature
- Mini vacuum tube preamp
- Convenient to improve your sound quality
- Treble & bass adjustment
- Sound is warm and broad
- No background noise
- Audio signal input can be computer, CD, phone and lossless player
- Audio output can be connected to digital amplifiers and active multimedia audio devices
- Three kinds of audio input: RCA
- 3.5mm stereo input
- Bluetooth
- Easily switching between different sound sources with its audio input selection
- Gold-plated for input and output terminals
- 6J1 valve tube
- Mini size suitable for desktop
- Adding isolation to its power supply part, which can reduce the audio interference to the lowest level
Description
Troubleshooting:
- Please note that this product is a preamplifier. It is not an amplifier and needs to be connected with an amplifier or active audio devices. Also, it is not a phono preamp and can’t work with a turntable. For noise issue:
- There is a large probability that the low-quality audio cable causes the static noise.
- Please make sure the sound source is fine since tube amplifiers will amplify all sound including the noise.
- Please check whether the tubes are plugged well on the tube sockets or not.
- Devices like routers, mobile phones will also interfere in the audio signal and may cause static noise.
- If your problem can’t be solved, please feel free to contact us. We will be very glad to help you and try our best to make you satisfied.
Parameters:
- RCA output: 0.9vrms
- SNR: 98dB
- Distortion: 0.3%
- Treble adjustment range: ± 6dB
- Bass adjustment range: ± 10dB
- Frequency response: 20Hz ~ 20KHz
- Power supply: 12V 1A
- Dimensions: 97.79*117.83*33.31 mm
- Weight: 0.32Kg
Packing List:
- 1 * preamp
- 2 * 6J1 tube
- 1 * 12V 1.5A power supply
4. Riverstone Audio – Tested/Matched Pair (2 Tubes) 7-Pin GE JAN 5654W Fully-Tested Vacuum Tubes – Upgrade for 6AK5 / 6J1 / 6J1P / EF95 – GE 5654W Platinum Grade Pair
Feature
- **IMPORTANT** AMPLIFIER DAMAGE CAN OCCUR IF YOU SUBSTITUTE THE WRONG TYPE OF TUBE. 5654W tubes should only be used to replace 7-Pin 6J1, 6J1P / 6J1P-EB / 6Zh1P-EV, 6AK5, 6AK5W and EF95 tubes. DO NOT SUBSTITUTE FOR ANY OTHER TYPE OF 7-pin tube.
- TESTED and MATCHED Pair (2 tubes) of low-noise 7-Pin NIB/NOS GE JAN 5654W Vacuum Tubes. Considered one of the best of the 5654 / 6AK5 / EF95 family of tubes for audio use. These vintage US manufactured GE tubes are Mil. Spec. (JAN) Electron Tubes – Higher Durability and Life. These NOS tubes were obtained from factory-sealed military surplus boxes. ***NOTE: All vacuum tubes sold by Riverstone Audio will have the “Riverstone Audio” name, logo and QC label on the boxes***
- BUY WITH CONFIDENCE – All vacuum tubes sold by Riverstone Audio are backed by our no-nonsense 2-YEAR warranty. THE BEST WARRANTY AVAILABLE in the audio tube business. We have been testing and using vacuum tubes for many years and know what it takes to select tubes for low-noise audio applications.
- RIVERSTONE AUDIO utilizes the best available equipment (Amplitrex AT1000) to test and match audio tubes. We do not sell untested tubes – never have and never will. Only the best NOS tubes are selected for Riverstone’s Platinum tested/matched pairs.
- TEST RESULTS are clearly listed on each tube box. Our experienced engineers match vacuum tubes for BOTH plate current and mutual conductance. All tubes we sell must also pass a specialized life test and an audio sound test. We guarantee that the GE 5654W tubes selected for these matched pairs test at NOS levels at or above 4800 micro-mho and a plate current of 7.2 mA or higher. ***Vacuum tubes sold by Riverstone Audio will have the “Riverstone Audio” name, logo and QC label on the boxes***
5. P1 Bluetooth 5.0 Vacuum Tube Preamplifier Hi-Fi Valve Headphone Amplifier Wireless Receiver Audio Decoder Preamp USB DAC APTX
Feature
- P1 is a Bluetooth vacuum & valve tube preamplifier and headphone amplifier. Headphone output is 160mW @32Ω and is suitable for 32~300Ω headphones and headsets.
- Classic 6J5 vacuum & valve tube can provide warm retro tube sound. It can be replaced by US RCA / 6AH6, Russian 6C2C and so on.
- It supports Bluetooth/USB/RCA inputs from various devices like iPod, Phone, MP3, TV, Blu-ray players, Echo Dot, CD players, computer etc.
- Bluetooth 5.0 supports APT-X, APT-X LL lossless transmission. PC-USB supports 24bit 192KHz and is compatible with Windows/Mac/Linux system
- Treble & bass control can achieve different sound style. Bypass function can suspend the tone control circuit to achieve purer music experience.
6. Vacuum Tubes 7-Pin 5654W Upgrade for 6AK5 6J1 6J1P EF95 Pairing Tubes 2PCS
Feature
- Each package contains a pair of fully tested and matched military version vintage US-manufactured JAN 5654W vacuum tubes(2 PCS).
- Substitute for 7-pin 6AK5/6AK5W/6Zh1P/6J1/6J1P tubes. It can also directly replace WE-403A/403B/EF95 and ordinary 5654.
- Note：Replacing the wrong type of tube may damage your amplifier. If you are not sure this 5645W can be used as a replacement for your audio device, please check with your amplifier manufacturer.
- It has a fuller, wider sound stage. The treble is smoother and bass is a little bit tighter. And you can hear some details that you did not hear before while more complex music.
- Every package you get goes through our careful packaging. With 18 months warranty. If you have any questions, please feel free to contact us.
7. 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)
8. T20 Bluetooth Tube Amplifier Stereo Receiver 2 Channel Class D Digital Mini Hi-Fi Power Amp Preamp Compact Integrated Headphone Amplifier for Home Passive Speakers with 6J4 Vacuum tubes + Power Supply
Feature
- CSR64215 Bluetooth 4.2 core support aptX low latency, Streaming range up to 39ft(12m), With Bluetooth and AUX selector, no pop when Bluetooth connecting
- 50W RMS X 2(4 ohms, 20 Hz – 20 kHz, 0.04% THD), built-in speakers protection circuit, best for outdoor/ bookshelf/ computer/ desktop /ceiling /floor standing speakers, can use iPod, Phone, MP3 players, TV, Echo Dot, CD players, or Streaming Media players as input
- Adopt 2 x 6J4 tubes to get clear audio sound, tubes can be replaced by 6K4, 6J1, GE5654, 6AK5, 6ж1П, 6BC5, 403A/B, EF40, EF95 and so on, with headphone output for 16-64ohm headphones.
- Small simple compact design but practical and powerful, Hi-Fi Bluetooth amplifier receiver exclusively designed for the customers who pursue HiFi sound
- Power amp + Preamp + Headphone amp, perfectly suited for your desktop or a smaller space in your home or office, digital amplifier is easy to connect to your audio system with no software to install or settings to change
9. FX-AUDIO TUBE-03 Tube Preamp GE5654 Tube Hi-Fi Tube Preamplifier with Bass & Treble Control Home Theater Stereo Audio Preamplifier DC 12V (Silver)
Feature
- 【GE5654 Tube and Chip】 This TUBE-03 tube preamplifier is equipped with triodes GE5654 vacuum tube and NE5532 OP IC. It offers you more sweet and retro music. This GE5654 vacuum & valve tubes are replaceable with 6J1, 6K4. OP chip NE5532 can be replaced by AD827JN / MUSE02
- 【Bass & Treble Control】 The vacuum tube preamplifier has bass knob, treble knob, and main volume knob. Bass and treble control offers two types of music. It will be convenient for you to adjust the bass or treble freely as your preference
- 【RCA Input & Output】 Input: smartphone, computer, CD, DVD, MP3, TV, blu-ray players. Output: active speaker, or amplifier and passive speaker (can not connect passive speaker directly)
- 【Premium Material】 Textured aluminum alloy shell, black immersion gold PCB sheet and gold-plated interface ensures more stable signal transmit. This preamp offers natural and soft sound to your home theater, HIFI devices, etc
- 【High Performance Preamp】 — THD+N Ration: 0.03%. SNR: 100dB. Frequency Response: 20Hz-20kHz. RCA RMS Level: 2Vrms. Package includes tube preamp, 2 x GE5654 tubes, power cord, RCA cable, user manual, guarantee card. Our uploaded video will give you more operation guide. If you have any question about our products, please feel free to contact us
Conclusion
By our suggestions above, we hope that you can found Audio Vacuum Tube Tube Amp for you.Please don’t forget to share your experience by comment in this post. Thank you!
