[NEWS] Astell&Kern Announced AK Solaris X IEM


Astell&Kern’s Latest IEM Collaboration – the SOLARIS X


The Limited-Edition SOLARIS X Marks the First Collaboration Between the Two Audio Specialist Market Leaders
Astell&Kern, a global leader in high-resolution audio playback devices and accessories, announces a new collaboration with Campfire Audio to produce in-ear monitors (IEMs) under the Astell&Kern brand. The limited-edition Solaris X is the first product to be released under the new collaboration. The SOLARIS X will be sold exclusively by Astell&Kern dealers worldwide for $1,499 in July 2021 and will be available in limited quantities.


Technical Specifications:

  • [High] Specially Customed New Single BA Driver + T.A.E.C.
  • [Mid] Single Updated Custom Balanced Armature Driver
  • [Mid + Low] Specially Tuned 10mm Dynamic Driver
  • Frequency Response
  • 5Hz-20kHz
  • SPL
  • 94dB @ 1kHz : 9.16mVrms
  • Impedance
  • 8.1 Ohm @ 1kHz
  • Total Harmonic Distortion
  • Less than 1%


The SOLARIS X is based on the popular Campfire Solaris 2020 IEM, but features a new custom Balanced Armature (BA) driver for high frequency response that was designed specifically for the AK SOLARIS X. This driver is smaller in size than the ones used in existing Solaris models. The new custom BA driver produces a more neutral response in comparison to the current Campfire Audio Solaris 2020 model. Coupled with Campfire’s patented tuned acoustic expansion chamber (T.A.E.C.) technology, the new driver offers smooth and extended high frequencies.


A Second BA driver provides rich delivery of the mid-range frequencies, and the custom 10mm dynamic driver optimized for the Polarity Tuned Chamber reproduces deeper and more refined mid-to-low frequencies.

Each earphone integrates a 3D Printed Acoustic Chamber which enable the drivers to deliver the highest audio quality possible, creating a natural and accurate sound.

Beryllium/copper MMCX connectors on the IEM are more resilient against wear and tear than regular brass connectors.

The AK SOLARIS X comes with a balanced 2.5mm pure silver cable allowing the earphones to reach their full performance potential.  Pure Silver Litz Cable is produced with four 4N (99.99% purity) conductors to offer clearer, extended sounds.


The jacket that wraps around each conductor ensures both flexibility and durability. At the same time, it is soft to touch and a practical to use every day.  A matching 2.5mm to 3.5mm adapter is provided for use with a variety of playback devices.



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