Astell&Kern AK ZERO1 IEM features three different types of drivers. Composed of a micro planar dynamic driver, dual balanced armature (BA) drivers and a dynamic driver.
The Micro Rectangular Planar Dynamic Driver is a specially developed, highly advanced driver that allows a planar driver design, to be applied to in-ear monitors. Adopting a sturdy and lightweight planar membrane to minimise frequency loss, this is combined with a vibration panel boasting a high-polymer and thin metal film to create crystal clear and dynamic high frequencies.
The AK ZERO1’s driver system also features dual BA drivers, using custom-designed coils. Coupled with the single 5.6 mm dynamic driver to ensure rich, controlled and deep low frequencies and the AK ZERO1 is poised to deliver its pioneering hybrid sound.
A Crossover Network design was generated based on a thorough understanding of each driver’s parameters. Once established, each driver is carefully placed in the optimal position, enclosed in specifically designed acoustic chambers manufactured with 3D printing technology.
The AK Zero1 is rated at 16Ω@1KHz impedance, 25Hz–30KHz frequency response and 96dB@1KHz (1mW) SPL.