Nobsound/Douk Audio:Best Hifi Products

Nobsound NS-08E 6J9 Vacuum Tube Headphone Amplifier Mini Stereo Audio Hi-Fi Amp

Brand: Nobsound
Product Code: NS-08E 6J9
Availability: In Stock

Product Description

   This unit can easily power high-performance headphones including the HD 580, HD 600, HD 650, K 701, K 702, Q 701, and many more.

   Package includes: headphone amplifier, 6J9 vacuum tubes (x2), and power supply.

   Input and output audio jacks are both 3.5 mm.  Please note, package does not include audio cables.

   Replacement vacuum tubes include: E180F, 6ж9П, EF861, and 6688.

   For our latest tube headphone amplifier, please search for 262506737842 on Ebay, or B01I19SBAW on Amazon.  It is the smallest headphone amplifier in the world, yet very powerful.



  • Output power: ≥1100 mW (32 ohm)

  • Headphone Adapter Impedance: 18-600 ohm

  • Total harmonic distortion:<0.005%

  • SNR: ≥110 dB

  • Frequency Response: 20 Hz - 30 kHz

  • Size: 111 * 69 * 32 mm (L * W * H) (Height: 73 mm with vacuum tube installed)

  • Net Weight: 185 g

  • Power supply: Input voltage: AC 100-240V 50/60 Hz; Output voltage: DC 6V 2000mA


1. Please turn on the amplifier for about 15 seconds before you connect the audio source and put on the headset, otherwise there will be a transient noise in the headset when you turn on the NS-08E.

2. Please unplug the power adapter when the amplifier is not in use. This will help to prolong the service life of the adapter.