Features:
- Vacuum tube preamp with Bluetooth; Convenient to improve your sound qualit
- Audio signal input can be computer, CD, phone and lossless playe
- Three kinds of audio input: RCA; 3.5mm stereo input; Bluetoot
- Easily switching between different sound sources with its audio input selectio
- Audio output can be connected to digital amplifiers and active multimedia audio device
- Treble & bass adjustment; Sound is warm and broad; No background nois
- Gold-plated for input and output terminals; 6J1 valve tube; Mini size suitable for desktop
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&39;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&39;t be solved, please feel free to contact us. We will be very glad to help you and try our best to sort it out
Specifications:
Audio input: 1 set of RCA input; 1 * 3.5mm stereo input; 1 * Bluetooth input
Audio output: 1 set of RCA output
Dimensions: 16*11.5*7 cm (including tube height)
Power supply: universal 12V DC
Packing List:
- One M7 bluetooth player tube pream
- AC 110V to 240V Power supply
- 6J1 tube*3 (one for spare)
- Bluetooth antenna