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Diana by Jerry Harvey Audio

Diana is a product created by combining the world level IEM technology of Jerry Harvey Audio, which has long been making custom earphones for musicians around the world, and the expertise of Astell&Kern reputed for their quality products made in Korea.

Going a step further from the existing SIREN Series, which is loved by music enthusiasts around the world, we have used full metal to create Diana, a world top level IEM in terms of both sound and design.

Freqphase, Timephrase 及Wave guide Technology
The "Diana" applies Jerry Harvey Audio's patented "Freqphase" technology, which uses precisely cut tube lengths for each driver to minimize the phase shift of each frequency. This allows for the High, Mid, and Low drivers to be aligned to 1/100ms for the most ideal phase curve. It ensures the correct time alignment and phase of all drivers resulting the most accurate music reproduction in the industry.
4N pure silver and 7N OCC copper hybrid
The cable included with - and designed and tuned especially for – the Astell&Kern Diana is a very special headphone cable – an 8-conductor wire of awesome sound. It’s made with 4N pure silver with silver plated 7N OCC to deliver the high in this combination; and the 7N OCC to bring the low. This hybrid construction of pure silver, silver OCC and OCC litz creates a unique harmony and is the finishing touch to Diana’s excellence. No more sharp highs or too much bass: bring perfect balance to your music with this unique cable.
The new sound bore design
In particular, the Acoustic Chamber Sound Bore design of Jerry Harvey Audio has been crafted and applied to Diana. This design creates the full amount of air needed to deliver sound, making it more optimized for treble. It also prevents sweat and dirt from accumulating in the sound bore.



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