Astell&Kern - AK ZERO1

The team at Astell&Kern packed the AK ZERO1 with four drivers in a unique configuration to achieve the highest possible audio quality. Astell&Kern AK ZERO1 features a hybrid setup with 1 micro rectangular planar dynamic driver, 2 balanced armature drivers and 1 dynamic driver. This complex driver system sits in a well-crafted resin enclosure where 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, the team eliminated unnecessary movement and resonance of the drivers to ensure stable performance. The housing designed with Astell&Kern's unique advanced aluminium-refining technology keeps resonance to a minimum and creates the highest-quality sound.

Astell&Kern AK ZERO1 features a hybrid setup with a micro rectangular planar dynamic driver which is a specially developed driver with highly advanced technology that allows a planar driver to be applied to IEMs. To go along with this driver, the team adopted a sturdy and lightweight planar membrane to minimise frequency loss and applied a vibration panel that features a high-polymer film with thin metal to create crystal clear high frequencies. Two BA drivers are made using custom coil parameters and offer crystal-clear vocals with super-low distortion. The 5.6 mm Dynamic Driver has been created through a fully automated, error-free process, ensuring rich, controlled and deep low frequencies. The three frequency ranges are divided clear but with utmost precision offering a natural and life-like sound.

Astell&Kern 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 harmonises the characteristics of each driver to deliver the most natural sound to your ears. The ideal frequency response was achieved through the Cross Over Network, which is designed based on a thorough understanding of each driver’s parameters.

The Astell&Kern AK ZERO1 is meticulously assembled by highly experienced engineers and manufactured through stringent processes to the highest tolerances in Japan. This design philosophy is visible in the bold diagonal line that crosses the IEM, reflecting the true identity of the AK ZERO1. The cut surface created by the character line shines in the light, showcasing the premium quality of the product. The shape of the AK ZERO1 has been designed and refined to fit your ears perfectly. The uniquely shaped nozzles are slender enough to offer a snug fit while still having enough space to house the three individual drivers of the AK ZERO1. This ensures that the high-quality sound created by the hybrid driver configuration is delivered accurately and efficiently straight to your ears.

The cable included with the Astell&Kern AK ZERO1 is of high quality and delivers a distortion-free audio signal. A premium 4 core pure silver-coated OFC cable comes bundled with the AK ZERO1, enhancing audio performance and reducing the loss of audio signal during transmission. This included cable features a sturdy design with aluminium plugs making it durable and offering a longer usage life. The cable features an MMCX connector on one end and a 3.5mm connector on the other, allowing for easy connectivity with various devices and even allowing for upgradability with its detachable design.

The Astell&Kern AK ZERO1 ships with much-needed accessories and an elegant carry case, making it easy to store and personalise to your taste. There is one utilitarian carrying case included with a variety of ear tips like 5 pairs of silicone ear tips and a pair of memory foam ear tips to customise the fit of the IEM according to your needs. This is thoughtful and reduces the need to buy extra accessories.