Beyerdynamic  x Astell&kern

The AK T8iE MkⅡ succeeds and improves on the AK T8iE, the world’s first Tesla in-ear headphone, collaboratively developed by Astell&Kern and Beyerdynamic. The new flagship model promises truly outstanding sound and exceptional build quality.

The AK T8iE MkⅡ has high-grade silver-plated fiber cables with coaxial construction, an upgrade from copper cables. It also introduces a new voice-coil, drawing on all of the audio excellence beyerdynamic has pioneered since 1924. Despite its small size, the AK T8iE MkⅡ allows users to experience an extremely wide frequency range, with crisp bass, well-balanced mids and crystal-clear highs.

Like its predecessor, the AK T8iE MkⅡ, is hand-made by highly skilled engineers in Germany. Combining Astell&Kern's philosophy of "providing the original sound" with the expertise of beyerdynamic, the AK T8iE MkⅡ sets a new benchmark.

• Model 

  AK T8iE Mk II

• Transducer type 

  Dynamic, moving-coil

• Operating principle 

  closed

• Frequency response 

  8 – 48,000 Hz

• Impedance 

  16 Ohm

• Total harmonic distortion 

  <0.2 %

• <0.2 % 

  10 mW

• Nominal sound pressure level 

  109 dB SPL

• Sound coupling to the ear 

  intra-aural

• Cables 

  two cables: one for balanced-mode use, one for unbalanced-use 1.30 m, two-sided, detachable

• Connector 

  MMCX at earphones
  / 3.5 mm 3-pole jack plug on unbalanced cable / 2.5 mm 4-pole jack plug on balanced cable

• Weight without cable 

  7 g per pair