audio-sound @ hatena

An audio review & news blog. The volume should not exceed 80 dB is recommended. I usually adhere to the safe-listening style by WHO. Please note that my aural impressions and interpretations of measurements are also made from a safe-listening style.

Open Audio Introduces "Witch Pro": Dual-Driver Hybrid IEMs With Handmade Face Covers

Open Audio Witch Pro.

Open Audio Witch Pro



  • Dual-Driver Hybrid Configuration.
  • Customised 9.2mm PU Ultra-Soft Suspended Edge Dynamic Driver.
  • High-Performance Customised Balanced Armature Drivers.
  • Beautiful Hand-Crafted Face Covers.
  • Skin-Friendly Silicone Ear Tips.
  • High-Purity OFC Stock Cable.
  • Easy To Drive.
  • Comfortable & Ergonomic.
  • Beautiful Package Design.


After a successful launch of the Open Audio Mercury five-driver flagship hybrid IEMs, Open Audio has revamped its classic entry-level hybrid pair with its second iteration, meet the all-new Open Audio Witch Pro. It comes as a direct successor to the OG Witch with better drivers, handmade ear shells, improved tuning, and many more new features. The Witch Pro still uses the same 1DD+1BA driver config as the OG Witch, but with improved drivers, you get exciting sound output that brings life to your favorite music!!


Open Audio Witch Pro is launched officially for 99$, you can check out more information here.


Witch Pro adopts a classic hybrid configuration consisting of a dynamic driver and a balanced armature driver. The pair adopts a 9.2mm PU Gasket Soft-Edged dynamic driver unit and a custom-developed balanced armature driver unit. Both the drivers are arranged here in a two-channel frequency division with the dynamic driver producing a crisp, deep-diving lower-end while the balanced armature driver produces clean, high-res midrange & treble performance.


Open Audio Witch Pro has got stunning looks and a comfortable design. Actually, each and every single unit of Witch Pro is handmade by a professional team of acoustic engineers. The pair comes in a striking purple color with an ergonomic shape for a comfortable fit. . The pair comes with a high-quality 4-core OFC cable with standard 2-pin 0.78mm connectors and a 3.5mm gold-plated termination plug.


Open Audio Witch Pro brings us a wonderful music listening experience with its top-quality drivers, professional crossover design & tuning, and comfortable fit. The pair is available for 99$, you can check more info here.



  • Impedance: 20Ω.
  • Sensitivity: 110dB.
  • Frequency Response: 10Hz-20kHz.
  • THD+N: ≤0.5%.
  • Connectors: 0.78mm 2-pin connectors.
  • Cable: 4-Core OFC.
  • Termination Plug: 3.5mm.




Open Audio Witch Pro.

Open Audio Witch Pro

Open Audio Witch Pro