The Astell&Kern Aura is a world class in-ear monitor designed and built in conjunction with Vision Ears in Germany.
Since 2013 Vision Ears is set out to develop the world’s most perfect In-Ear systems. All models are crafted in Cologne, Germany and blend outstanding performance with breathtaking design. The AURA is a perfect statement of this philosophy, the sophisticated yet elegant design was meticulously machined to the highest level of precision and great attention to detail.
Custom Designed 11-Drivers
2 x 8 mm Al-Mg Low Dynamic Drivers- [sub-bass & bass]
The 8-mm isobaric dynamic drivers offer powerful output and precision sound. Two 8-mm dynamic drivers handle the low and mid-low frequency ranges, offering tighter, more precise, and better tuned bass thanks to their exquisite design.
Eight Drivers: Two Sets of Four Balanced Armature Drivers– [Mid-low] [Mid] [Mid-high]
It comes with specially selected four mid-low balanced armature (BA) drivers and four mid and mid-high BA drivers with two pairs of dual BA drivers that combine to handle the mid and mid-high frequency range. The carefully selected eight BA drivers work together to create precision mid-range sound and produce warm and emotional male and female vocals.
1 Balanced Armature Super Tweeter– [High & Super High]Balanced armature (BA) drivers designed with to maximize a sense of space and openness are utilized to create soft, delicate, yet expanded ultra-high-frequency sound that resonate richly in your ears.
5-Way Crossover The AURA technical configuration is designed with a 1st grade crossover, meticulously manufactured in Germany. All components being well chosen for lowest tolerances possible on the market. Astell&Kern AURA is using a 5-way crossover with a particular circuit solution that avoids an excessive load from the tweeter towards the source (amplifier), thus reducing distortion and extending the reproduction of high frequencies. Internal wiring is made with premium silver plated copper alloy wire for highest performance.
Isobaric configuration with two dynamic drivers Two 8mm dynamic drivers are placed facing each other in an isobaric configuration. As two drivers are placed facing each other and the sound is output from exactly between them, the compositional interference is maximised, effectively doubling the output volume. This, in turn, removes any phasing issues that may raise from the length difference between the sound tubes, reducing THD.
This design makes the low-frequency sound created by the dynamic drivers more accurate, solid, and vibrant.
ChamberThe “special chamber” have a precise internal volume that has been calculated to get the best compromise between driver speedness and musicality. The two DD Drivers are strictly matched to reduce any possible phase incoherence which could lead to inaccurate transient reproduction.
MeshAURA’s open-structure design features a vacuum metal mesh that gleams elegantly on top. This special aluminum acoustic mesh circulates air from the dynamic driver to control the powerful resonating force, protecting internal components from external influences.
Material Innovation and Craftsmanship
The front plate and shell of Astell&Kern AURA is made from Swiss 6061-T6 aluminium.
Aluminum 6061 is an alloy that is lightweight, sturdy, and highly resistant to corrosion. On top of that, we added T6 heat treatment to enhance the strength of the aluminum, making it not only feather-light and sturdy but also allowing it to be given a beautiful finish.
Production processes of all parts are done through the highest-quality CNC milling process, one part at a time.
The Micro Groove Design FaceplateThe Micro Groove Design is applied with surface treatment for milling process. Grooves are dug along the grain of the raw material to create a unique design, before the product is moved to a precision-tailored jig for laser engraving. This process is not just a standard laser process but a special laser process that eliminates parts of the raw material to engrave letters 0.5 mm deep while adding depth to the engravings. Next, the component is treated with oil to prevent oxidation, packaged, anodised, and given a custom dark bronze color.
Precision-Milled Aluminum ShellUnlike the faceplate, the shell is oil-sealed and then handed to the polishing master. The faceplate is engraved with an aesthetic design element, and the surfaces of shells are polished through a special sand-blast refinement process. Otherwise, marks will be left from the tools used, so each shell is polished like mirror by hand. Then, after sand-blasting and anodising, the shell is ready to be given Vision Ears’ custom warm grey finish.
The AURA shell is the result of thousands of hours of work, including cutting diamonds out of rough rocks with carefully selected materials, precision processes, and specialised tools.
Leather Accessories Handcrafted from Smooth Calfskin Leather PABLO
The elegance of leather products is determined by the following factors. Masterful leather craftsmanship, skilled tanning, high-quality hides, farms that prioritise animal welfare, and excellent grasslands.
AURA’s leather accessories are made of leathers from the best tanneries in Europe. Leather accessories for AURA are made from the highest-quality calf-skins and are tanned by skilled craftsmen to imbue them with unique colours and gloss and guarantee excellent durability, along with a soft yet fine grainy texture.
These leather accessories transcend time with their elegance and earn the envy of other famous brands.
· Leather Carrying Case
· Leather Earphone Pocket
· Leather Cable Clip
- Model Astell&Kern AURA
- Drivers 8mm Al-Mg Low Dynamic Drivers in a Isobaric configuration x2
Balanced Armature Drivers for the low mids x 4
Balanced Armature Drivers for the mid&mid highs x 4
Balanced Armature Driver for the super tweeter x 1
- Cable 0.78mm 2-pin
Effect Audio Custom Selected Premium UP-OCC Pure Silver Litz and Pure Copper Litz Hybrid (4.4mm, 3.5mm)
- Material Aluminum
- Frequency response 10 Hz – 24 kHz
- SPL 115dB @ 1kHz, 1mW
- Impedance 10.5Ω @ 1kHz
- Total Harmonic Distortion 0.5% @ 1kHz
· Effect Audio Custom Cable (4.4mm, 3.5mm)
· Leather Carry Case
· Leather Earphone Pocket
· Leather Cable Clip
· Suede Cleaner
· 6 pairs of AZLA SE1500 Tips (SS / S / SM / M / ML / L)
· 4 pairs of Mesh Filters
· Quick Start Guide
· Warranty Card
· Serial Number Card