Why us?

The Nobsound NS-02E designed by Douk Audio Studio is a powerful Hi-Fi headphone amp. It has an anodized aluminum chassis with a replacable vacuum tube shining blue illumination on the top. The Nobsou...

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Why us?

The Nobsound NS-02E designed by Douk Audio Studio is a powerful Hi-Fi headphone amp. It has an anodized aluminum chassis with a replacable vacuum tube shining blue illumination on the top. The Nobsound NS-02E can provide soft and warm sound while maintaining its exceptional clarity. Most importantly, the affordable price makes both Hi-Fi freshmen and Hi-Fi veterans can enjoy it. And that's exactly one of our targets.

The Nobsound NS-02E can be paired with your preamp, smart phone, computer, iPod, stereo system, and other audio device as well as your favorite headphones. It can easily power high-performance headphones including the HD 580, HD 600, K 701, K 702, Q 701, DT880, T70, T90, SR225, SR325, RS1e. It will also be a good match for active speaker systems.

The Nobsound NS-02E can also be used as a tube pre-amplifier. You can connect it with any types of power amplifier to upgrade the musicality and dynamic of the original system.

What's more, its high playability can provide more pleasures for you. The default tube is 6N3, which can be easily replaced with various types of tube as below:

  • United States: 6A8Q, 2C51, 5670, 5185, 6385, 6185, WE396
  • Europe: ECC 42
  • Soviet Union: 6H3N, 6H3II
  • Germany: ECF82
  • Czech Republic: 6CC42

Definitly, you will always find a place for it in your stereo system.

Specifications:

  • Tube: 6N3
  • Output power: ≥1100 mW (32 ohm)
  • Adapter Headphone Impedance: 18-600 ohm
  • Total harmonic distortion: <0.005%
  • SNR: ≥110 dB
  • Frequency Response: 20 Hz - 30 kHz
  • Size: 90 * 90 * 39 mm (L * W * H; 3.54 x 3.54 x 1.54 inches) /H: 80 mm with tube and feet
  • Net weight: 165g
  • Colors Available: Black, Silver
  • Input and Output Audio Jacks: 3.5 mm

Package include:

  • 1× NS-02E amp
  • 1× power supply


  • The Nobsound NS-02E can provide soft and warm sound while maintaining its exceptional clarity.
  • The default tube is 6N3, which can be easily replaced with 6A8Q, 2C51, 5670, 5185, 6385, 6185, WE396, ECC 42, 6H3N, 6H3II, ECF82, 6CC42.
  • The Nobsound NS-02E can be paired with your preamp, smart phone, computer, iPod, stereo system, and other audio device as well as your favorite headphones.
  • The Nobsound NS-02E can also be used as a tube pre-amplifier.
  • The affordable price makes both Hi-Fi freshmen and Hi-Fi veterans can enjoy it.
  • The Nobsound NS-02E can provide soft and warm sound while maintaining its exceptional clarity.
  • The default tube is 6N3, which can be easily replaced with 6A8Q, 2C51, 5670, 5185, 6385, 6185, WE396, ECC 42, 6H3N, 6H3II, ECF82, 6CC42.
  • The Nobsound NS-02E can be paired with your preamp, smart phone, computer, iPod, stereo system, and other audio device as well as your favorite headphones.
  • The Nobsound NS-02E can also be used as a tube pre-amplifier.
  • The affordable price makes both Hi-Fi freshmen and Hi-Fi veterans can enjoy it.

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