Dunu is a Chinese company established in 1994. They specialize in IEMs and cables. I would like to thank Dunu for the review unit of Zen. At the moment, the Zen can be purchased from Dunu.


  • Driver Configuration: 1 Dynamic
    • Diaphragm: Magnesium-Aluminum alloy dome with nanoporous amorphous carbon coating (nanoDLC) and fully independent suspension surround
    • Magnet Assembly: > 1.8 T External Ring-Type Neodymium Magnet
  • Impedance: 16 Ω at 1 kHz
  • Sensitivity: 112 ± 1 dB at 1 kHz
  • Frequency Range: 5 Hz – 40 kHz

Unboxing & Accessories

The Zen comes in a black package with a protective cover which sports the model name. There are specifications at the back of the protective cover. After opening the package, there are Zen, MMCX cable with interchangeable jack (3.5mm Single Ended, 2.5mm Balanced & 4.4mm Balanced), 3.5mm to 6.3mm adapter, flight adapter, case, tips, cleaning cloth, cleaning tool, shirt clip, soft pouch, certification card and warranty card.

Page 2: IEM Build & Design, Cable Build & Design