902 reviews analysed
1. 6J1 Vacuum Electron Tube Valve Preamp Amplifier Board Headphone Amp Parts Preamplifier Musical Fidelity Kit AC12V 0.8A
- ★ Connect the 6J1 tube pre-amp between sound source and amplifier, it will effectively filter digital flavor, the music and human voice will be relatively good
- ★ Eight 470UF capacitor filter is very clean, excellent power system lead to no hum, filaments are powered with DC 12V and need to be connected in series in order to reduce noise
- ★ Coupling capacitor is electrodeless electrolytic capacitor with high frequency and low resistance
- ★ Using DC 5.5*2.1 socket and AC 12V transformer, you can also use AC 12V transformer without plug, just need to weld the power cord onto the circuit board
- ★ This kit comes in parts so you can assemble them together by yourself, enjoy the process of building your own tube amplifier
2. Nobsound NS-10P Mini Vacuum Tube Preamp Audio Hi-Fi Stereo Pre-Amplifier Treble & Bass Control
- 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
3. JJ 12AX7 / ECC83 Preamp Vacuum Tubes (Three Pack)
4. Vacuum Tube – 11×14 Unframed Patent Print – Great Gift Under $15 for Amateur Radio Operators and Stereophiles
5. Electro-Harmonix 6H30Pi Gold Pins – Matched Quad – 4 tubes
6. Matched Pair (2x) Genalex Gold Lion 6922 tube (E88CC)
7. 12AU7 / ECC82 Preamp Vacuum Tube
8. Nobsound Little Bear FU32(832A) Vacuum Tube Headphone Amplifier ; Mini HiFi Stereo Preamp
- 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.
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.
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 [email protected](5.5/2.2mm)
Tube model: Beijing FU32
Op amp: NE5532
Dimensions: (L)86 mm *(W)86 mm *(H)43 mm(Excluding the tube)
Net weight: 320g
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.
9. EH Gold 6922 Preamp Vacuum Tube, Single
High frequency twin triode preamplifier tube used in studio and hi-fi equipment.
By our suggestions above, we hope that you can found Eh 6H30 Vacuum Tube for you.Please don’t forget to share your experience by comment in this post. Thank you!