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

Free Shipping Included! Nobsound Bluetooth Vacuum Tube Power Amplifier Class D HiFi Digital Audio Amp 100W (50W×2) (Black) by Douk Audio at The Met Theatre. MPN: GFJ583_B_US. Hurry! Limited time offer. Offer valid only while supplies last. Specifications: Tube: 6J1 Amplifier Chip: TPA3116 Rated output power: 2*30W /8Ω, 2*50W /4Ω Audio input: 1 set of RCA input; 1 * 3.5mm stereo

Product Description


  • Tube: 6J1
  • 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 * 6J1 tube (one spare tube)
  • 1 * Bluetooth antenna


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.

Features & Highlights

  • Vacuum tube power amplifier with Bluetooth, 3.5mm jack and Stereo L/R RCA input
  • Power amplifier uses TPA3116 as the core chip, 1.2MHZ modulation frequency, high-power output distortion of less than 0.1% (10W), up to 50W + 50W dual-channel output power
  • Audio signal input can be computer, CD, phone and lossless player, or use bluetooth function to connect Phone and Tablet PC
  • Easily switching between different sound sources with its audio input selection
  • Treble & bass adjustment; Sound is warm and broad; No background noise; Gold-plated for input and output terminals; 6J1 valve tube; Mini size suitable for desktop

Additional Information

Brand:Douk Audio
Part Number:GFJ583_B_US
Package Weight:2.36 pounds
Package Size:8.54 x 3.11 x 3.11 inches

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

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

Brand: Douk Audio
4.8 out of 5 stars with 65 reviews
Condition: New
Lead Time: 1 - 2 Business Days
Availability: In Stock



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