Improved bass response
Newly designed acoustic vent port for improved bass response.
Enhanced treble response
Using a specifically engineered acoustic filter with integral earwax protection.
Pure silver and OCC hybrid cable
(2.5mm 4-pole balanced).
Designed by Astell&Kern, turned for Astell&Kern by beyerdynamic, handmade in Germany.
- Astell & Kern AK T9iE in-ear wireless Bluetooth headphones
- Transducer Type: Dynamic, moving-coil
- Operating Principle: Closed
- Frequency Response: 8 - 48,000 Hz
- Impedance: 16Ohm
- Total harmonic distortion: <0.2%
- Power handling capacity: 10mW
- Sound coupling to the ear: intra-aural
- Cable: 4N pure silver and 7N OCC copper hybrid 2.5mm 4-pole cable