Astell&Kern has just launched its newest In-Ear-Monitor (IEM) model, Billie Jean, at the 2018 Fujiya AVIC Spring Headphone Festival in Tokyo, Japan.
Billie Jean is the latest collaboration between Astell&Kern and Jerry Harvey Audio and builds on the previous high-end IEM collaboration models introduced before. The lower retail price of $349 USD makes the high-performance Billie Jean IEM even more accessible and available to music fans. Billie Jean combines the patented technologies from Jerry Harvey Audio with the world-best quality production of Astell&Kern to produce another new IEM with great sound and quality build.
The Dual BA drivers have been carefully tuned with the patented technologies of Jerry Harvey Audio including Freqphase and Time | Phase Waveguide. Jerry Harvey, an audio engineer himself, brings the full range of dynamic sound from high to low range in this new IEM. A new Acoustic Chamber Sound Bore opens up the higher notes and lets them shine even more by controlling the air movement volume in the ear pieces. This also prevents any artifacts in the sound production.