Bellos Audio X2 - 2 Driver Custom In-Ear Monitor
Bellos Audio X2 - 2 Driver Custom In-Ear Monitor
Bellos Audio X2 - 2 Driver Custom In-Ear Monitor
Bellos Audio X2 - 2 Driver Custom In-Ear Monitor
Bellos Audio X2 - 2 Driver Custom In-Ear Monitor
Bellos Audio X2 - 2 Driver Custom In-Ear Monitor

Bellos Audio X2 - 2 Driver Custom In-Ear Monitor

CHF 499.00

Delivery time approx. 2 weeks.



X2 Custom IEM

X-Series Matte Green

The Bellos Audio X2 Custom in-ear monitors are suitable for professional musicians and music lovers alike. The

The technical side of the X2 is what sets it apart, with an impressive level of separation and air in the mids and lower treble , which allow each instrument to dominate its own space. Thanks to revolutionary In-Air Canal technology, these custom earbuds feel so comfortable you'll forget you're wearing them.

Like all X-series headphones, the X2 features a variety of additional technologies, such as: b ATOM Venting that significantly expands the soundstage, beautiful 3D printed matte shells, the ultra-rugged RCX cable connector, modular drivers and removable faceplates for faster maintenance and repairs.

Estimated construction time: 5 days

(Construction begins as soon as we receive usable ear prints)

Bellos X-Series X2 Specs

Driver Specs

  • 1 High
  • 1 Mid/Low


  • In-Air Canal Technology
  • 3D Printed Matte Finish Shell
  • ATOM Venting Technology
  • RCX Cable & Connector


  • 2 Balanced Armature drivers
  • Frequency Response: 20Hz – 18kHz
  • Impedance: 41Ω at 1kHz
  • Sensitivity: 114 dB/mW
  • Crossover: Integrated 2-Way Crossover
  • Isolation: -17dB (internal ATOM)


      Our proprietary technologies that enable us to produce best-in-class custom in-ear monitors.

      In-Air Channels

      Bellos Audio Technologien
      If you've ever used custom IEMs, you know that your ear canals deform when you open your jaw to sing or speak. As a result, the CIEMs lose their seal and feel uncomfortable in the ear. Introducing the revolutionary In-Air Canal technology. A patented design that allows for a complete seal at the opening (entrance) of the ear canal. It offers all the advantages of CIEMs without their disadvantages. They're so comfortable you'll forget you have them in!

      ATOM ventilation

      Bellos Audio Technologien
      A pressure relief system that releases air pressure that builds up in a sealed ear canal. This increases the soundstage and greatly reduces listener fatigue, allowing you to hear more and listen longer. You no longer feel like you are cut off from your surroundings.

      3D printed matte cases

      Bellos Audio Technologien
      Using our patented 3D printing technology, we design the custom in-ear monitors in 3D software with nanometer precision. The parts are printed and assembled efficiently by hand. Shortly thereafter, the matte finish is applied to the CIEM shell to ensure a very comfortable and organic fit with a "grippy" consistent seal.


      RCX cable

      Bellos Audio Technologien
      One ​​of the most common sources of error is the cable. Our proprietary RCX cable changes this. The only cable connection designed specifically for custom in-ear monitors. It's for 5.000 connections designed without errors. The RCX cable comes with our standard CIEM 2 year warranty.

      Removable faceplates

      Bellos Audio Technologien
      A revolution in the design of custom in-ear monitors. A traditional custom IEM must be cut open to be repaired. Our design features a faceplate that attaches with alloy steel screws, allowing us to repair custom in-ear monitors quickly and efficiently.

      Modular drivers

      Bellos Audio Technologien

      The CIEM enclosure is designed to accommodate a pre-assembled driver package that is tested in advance to ensure it meets all specifications. Modular drivers can be installed and removed without damaging or destroying the CIEM housing.