ZERO is a number that represents the reference point, and it also means the beginning.

Astell&Kern, the global leader in the Hi-Fi portable audio market, introduces the In-Ear Monitor product from the starting point of "ZERO". AK ZERO1 is a new start for Astell&Kern and aims to be the new standard for In-Ear Monitors. By building our experience in IEM manufacture from “ZERO” we push to make ZERO1 a truely best in class product and a market leader in the Hi-Fi IEM arena.

Hybrid IEM AK ZERO1 focuses on combining the sounds of three unique driver technologies into one.

Composed of a Micro Rectangular Planar Dynamic Driver, two BA drivers, and a 5.6 mm Dynamic Driver, the AK ZERO1 harmonizes the characteristics of each driver to deliver the most natural sound to your ears.

An ideal frequency response was created through the Cross Over Network, which is designed based on a thorough understanding of each driver’s parameters. At the same time, each driver is carefully placed in the optimal 3D position, enclosed in specifically designed acoustic chambers manufactured with precise 3D printing technology.

By implementing this, we eliminated unnecessary movement and resonance of the drivers to ensure a stable performance.

The Hybrid IEM with each driver's AK sound harmoniously distributed
Hybrid IEM AK ZERO1 focuses on combining the sounds of three unique driver technologies into one.

Composed of a Micro Rectangular Planar Dynamic Driver, two BA drivers, and a 5.6mm Dynamic Driver, the AK ZERO1 harmonises the characteristics of each driver to deliver the most natural sound to your ears.


HI-Fi Grade Pure Silver-Coated OFC Cable 4 Core (3.5mm Plug)
The Pure Silver-Coated OFC cable maximises the performance of the Hybrid IEM AK ZERO1. They have been exquisitely crafted with high-purity silver plating and copper and the aluminium plugs give them even more class.
The MMCX connector provides the best quality, offering a long-lasting stable performance.

Specifications

Boxed content: Earbud L/R, 3.5mm MMCX cable x1, 5 pairs of silicone ear tips, 1 pair of foam tips, carrying case

Drivers: Hybrid Drivers (Special Micro Rectangular Planar Dynamic Driver x1 / Custom Balanced Armature Driver x 2 / 5.6mm Micro Dynamic Driver x1)

Connector: MMCX

Material: Aluminium

Frequency response: 25Hz-30KHz

SPL: 96bD@1KHz(1mW)

Impedance: 16Ω@1KHz

Total harmonic distortion: 0.7%@1KHz