Radius HP-W100 Doblebe series Aluminum housing Hi-res compatible earphones Ne Hi-res aluminum housing DDM system driver Wired canal type HP-W100

Aluminum housing A modern sound that makes use of the gorgeous and unique sound that is suitable for the bright and brilliant impression of the aluminum base was born. Aluminum is highly workable, corrosion resistant, and non-toxic, making it a very attractive material for housing earphones. The relatively strong and lightweight aluminum housing makes these earbuds comfortable in a variety of listening environments.Acoustic design using vibration analysis technology It can be said that the housing that contains the driver unit itself is one of the vibrating bodies that produce sound. The optimum dynamic woofer is selected by considering the analysis results of the vibration transmitted to the housing during sound reproduction and the physical properties of the material (propagation speed and internal loss). By finely tuning the piezoceramic tweeter, we succeeded in superimposing the unique characteristics of metal materials on the unique sound of the Doblebe series. Due to its physical properties, aluminum has low internal loss and is easy to resonate (vibrate easily), so we have performed tuning that utilizes the "resonance of the housing".Piezoceramic tweeter 3rd generation VST2 The piezoceramic tweeter developed by Ozeid Co., Ltd. has high resolution and exhibits excellent characteristics in the ultra-high range of 20kHz or higher, which exceeds the audible band. Based on a ceramic material with low hysteresis (hysteresis) and excellent linearity, the 3rd generation VST2 adopts a piezo ceramic with a larger displacement. It enabled the reproduction of a wider and more natural sound field.Graphene-coated diaphragm dynamic woofer The dynamic woofer uses a graphene-coated diaphragm that is optimal for making the housing resonate in order to take advantage of the unique sound of aluminum. Due to its physical properties, graphene is light and hard, so it has a high propagation speed and suppresses biased vibrations such as rolling, enabling efficient transmission of vibrations to the housing. By giving depth to the bass range and making the most of the overtone components produced by the VST, we have achieved a clear and well-balanced all-round tone.Axial (coaxial) structure Considering the high directivity of the high frequency output of the "Piezoceramic tweeter 3rd generation VST2", we adopted an axial structure that arranges the sound part of the driver unit to the port exit on the same straight line. Did. By unifying the directivity of the sound emitted from each diaphragm, the effects of unintended sound reflection and diffraction are suppressed, creating a sense of unity in the sound. In order to maximize the characteristics of the DDM driver with VST, the structure has been optimized. Furthermore, by driving two diaphragms with a single network board, the DDM driver makes the characteristics near the crossover frequency nearly flat, minimizing the sense of separation between bands, which is a problem with the multi-way system. I can.