Nobsound Bluetooth Vacuum Tube Power Amplifier Class D HiFi Digital Audio Amp 100W (50W×2) (Black)

Specifications:

• Tube: 6J2
• Amplifier Chip: TPA3116
• Rated output power: 2*30W /8Ω, 2*50W /4Ω
• Audio input: 1 set of RCA input; 1 * 3.5mm stereo input; 1 * Bluetooth input
• Audio output: 1 set of Banana Speaker Jacks
• Signal to noise ratio: ＞99dB
• Frequency: 50Hz-60Hz
• Dimensions: 16*11.5*7 cm (including tube height)
• Power supply: universal DC 19V 4.7A

Packing List:

• 1 * Power Amplifier
• 1 * Power supply
• 3 * 6J2 tube (one spare tube)
• 1 * Bluetooth antenna

Troubleshooting:

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.