Product Description
Astell&Kern's philosophy of striving to deliver ultra-precise original sounds has been praised by many audiophiles from the result of our first IEM, the AK ZERO1.
The AK ZERO2 is a professional IEM made using advanced technologies based on our experience gained from the development of the AK ZERO1.
The ultra-refined cross-over network design and acoustic chamber perfectly harmonize the four different drivers
that power the AK ZERO2, designed to play the true sounds of Astell&Kern.
![detail_01](https://cdn.astellnkern.com/editor/img/202303/20230328165202_b30278a9-682f-4eae-8635-4562d45371ff.png)
- Four different types of drivers
- Perfectly harmonized driver structure
- Highest Cross-Over Network Management
- Acoustic Chamber by 3D Print Technology
- Precise CNC Metal Housing
- Hi-Fi Grade Pure Silver-Coated OFC Cable
- Made in Japan
The AK ZERO2 is an IEM that features a “Quad-brid” design centered around an advanced driver array and Super Low Noise Cross-Over Network perfectly tuned. Four different types of driver, including Custom BA Drivers, a Planar Dynamic Driver, a 10-mm Dynamic Driver, and a Piezoelectric Transducer create the perfect synergy, coming together to form the Quad-brid AK ZERO2 capable of reproducing the pure sounds that Astell&Kern strives to deliver.
![detail_03](https://cdn.astellnkern.com/editor/img/202303/20230328165206_3ba02444-7879-476d-9211-fcbdef988bf3.jpg)
Advanced Quad-brid Design
![Special Micro Rectangular Planar Dynamic Driver](https://cdn.astellnkern.com/editor/img/202303/20230328164925_e9763ddc-57a7-4b91-bcdb-b07f275c262a.jpg)
The Micro Rectangular Planar Dynamic Driver is a driver specifically developed to deliver high frequencies, featuring advanced technology that allows a planar driver to be used in IEMs, despite the extreme difficulty in making it small enough to fit in such a small cavity.
We selected a light yet sturdy planar membrane to minimize frequency loss and applied a trembler with a thin metal membrane and polymer film to create lifelike vivid high frequencies. This provides a clear and dynamic high frequency response.
![Dual Custom Balanced Armature Drivers](https://cdn.astellnkern.com/editor/img/202303/20230328164930_14673970-9749-47f1-9e7c-14e2282c82a1.jpg)
- [Full Range] Perfectly Balanced and Rich Sound
The Coil Parameter Dual Custom BA Driver is a custom-made driver designed to reproduce both full-range and mid- to low-range frequencies.
It comes with a total of four drivers: two BA drivers that offer ultra-low distortion to create clear low- to mid-ranged vocal sounds and two BA drivers that offer perfectly balanced rich sounds, uniquely tuned to harmonize each frequency range, playing perfect sounds.
![Single 10-mm Dynamic Driver with Piezoelectric Transducer](https://cdn.astellnkern.com/editor/img/202303/20230328164935_4dc138cb-4638-46fe-b12d-40ebecbe6aaf.jpg)
Various types of carefully designed drivers create rich, Hi-Fi sounds. The 10-mm dynamic driver used in the AK ZERO2 is meticulously manufactured using a fully automated process. This allows the driver to recreate rich and deep low frequencies.
An additional piezoelectric transducer works in tandem with the dynamic driver, serving as a super tweeter that asserts its presence in the super-high frequency range that many IEMs struggle to recreate.
The pure silver-coated OFC cable, designed to maximize the performance of the AK ZERO2, is created with high-purity silver plating and copper, and adds a touch of style with plugs crafted from aluminum.
The MMCX connectors offers a robust connection and a long-lasting and stable life cycle.
Technical Specifications
- Model: AK ZERO2
- Driver:
- Quad-brid Drivers
- Special Micro Rectangular Planar Dynamic Driver x1
- Custom Balanced Armature Drivers x4
- 10mm Micro Dynamic Driver x1 with Piezoelectric Transducer
- Cable:
- MMCX
- Hi-Fi Grade Pure Silver-Coated OFC Cable 4 Core (4.4mm, 3.5mm)
- Material: Aluminum
- Frequency response: 20Hz–30KHz
- SPL: 105dB@1KHz(1mW)
- Impedance: 5Ω@1KHz
- Total Harmonic Distortion: 0.7%@1kHz
What's Included
- AK ZERO2 Earbud L/R
- 3.5mm cable x1
- 4.4mm cable x1
- 5 pairs of silicone ear tips
- 1pairs of foam tips
- Carrying Case x1