Astell & Kern x Beyerdynamic - AK T9iE

Product SKU: AK T9iE

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Product Details

Astell&Kern

Beyerdynamic

AK T9iE

Tesla Technology, Further Refined

  • Specially Tuned for Astell&Kern player by Beyerdynamic
  • Newly designed acoustic vent port for improved bass response
  • Enhanced trebel softness by specially engineered acoustic filter with integral earwax protection
  • 4N pure silver and 7N OCC copper hybrid cable
  • The all new designed by Astell&Kern

beyerdynamic + Astell&Kern

Astell&Kern is proud to announce the all-new AK T9iE.
The AK T9iE is the third in-ear collaboration product by beyerdynamic and Astell&Kern.
Specially tuned for Astell&Kern portable music players, the AK T9iE has an extremely neutral sound signature with soft treble, linear midrange and slightly elevated bass.

The AK T9iE uses beyerdynamic's patented high-efficiency Tesla Technology and is manufactured by hand in Germany, satisfying the highest standards.

AK T8iE MKII vs. AK T9iE

AK T8iE MKII AK T9iE
Vent hole New acoustic vent port
One-layer grille filter Two-layer acoustic filter
High-grade transparent silver-plated cable 4N pure silver and 7N OCC copper hybrid cable
2.5mm cable + 3.5mm cable 2.5mm cable + 2.5 to 3.5 interconnector
5 sizes of ear tips 7 sizes of ear tips
Designed by beyerdynamic Designed by Astell&Kern

 

Acoustic sound signature of AK T9iE

Our target is to make the sound more natural, especially when playing back hi-res audio with Astell&Kern Players. The newly designed acoustic vent port allows for improved bass response and enhanced treble softness by specially engineered two-layer acoustic filter with integral earwax protection.

New acoustic vent port

The newly designed acoustic vent port has a slightly enlarged vent hole that is located in the middle of the cover plate which allows for a very deep bass that is extremely well controlled.

Two-layer acoustic filter

A specially engineered two-layer acoustic filter is utilized in the sound outlet, different from the AK T8iE MKII, and serves two purposes - protection from earwax and an acoustic filter element which produces very pure and neutral treble.

4N pure silver and 7N OCC copper hybrid 2.5mm 4-pole cable

The same cable used for AK T5p 2nd Generation has been utilized for AK T9iE.
It's made with 4N pure silver with silver plated 7N OCC to deliver the high in this combination; and the 7N OCC to bring the low.
This hybrid construction of pure silver, silver OCC and OCC litz creates a unique harmony.
No more sharp highs or too much bass: bring perfect balance to your music with this unique cable.

 

SPECIFICATIONS

 Transducer Type 

Dynamic, Moving-Coil

Operation Principle

Closed

Frequency Response

8 - 48,000Hz (TBD)

Impedance

16 Ohm

Total Harmonic Distortion

< 0.2%

Power Handling Capacity 10mW
Sound Coupling to the Ear Intra-aural
Cables 4N pure silver and 7N Copper hybrid 2.5mm 4-pole cable, 2.5mm to 3.5mm interconnector
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