ikko is a Chinese company that specializes in iems. The OH7 is their flagship IEM. I would like to thank ikko for the review unit of OH7. At the moment, the OH7 can be purchased from ikko or Penon Audio.


  • Drive Configuration: 1 10mm Deposited Nano Carbon Dynamic
  • Sensitivity: 105db
  • Impedance: 90ohm
  • Frequency Response: 20-40khz

Unboxing & Accessories

The OH7 comes in a black package with a protective cover that sports an image of the OH7, specifications, social media platforms’ information and short description of the OH7. Inside the package, there are the OH7, detachable MMCX cables (3.5mm and 4.4mm), 4.4mm to 2.5mm cable adapter, leather case, pouch, tips, ikko pin and user manual.

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