The A8000 employs a diaphragm made from ultra-thin Beryllium foil (Truly Pure Beryllium Diaphragm), which is said to be an ideal diaphragm material due to its light weight and high sound speed.
FeaturesĪdoption of Truly Pure Beryllium Diaphragm As a result of evaluation and improvement of interrelations between principal components analyized by the results of subjective evaluation and data analysis of impulse response that could not be gleaned from frequency response in the past, an ideal diaphragm material that is extremely light and possessing high sound speed comprised of ultra-thin Beryllium foil (Truly Pure Beryllium Diaphragm) has been adopted for the A8000. This time, with the aim of achieving transparent sound for earphones, final has developed its own proprietary Perceptual Transparency Measurement (PTM) evaluation methodology.
Until now, we have employed modification of the amplitude frequency response, known as tuning, to modify the sound of our earphones, but because it cannot make a great change to time response, it became difficult to achieve transparent sound through tuning. We believe that the high evaluation of our D8000 headphones owes to the realization of such transparent sound. We have been considering the realization of this sound impression to be extremely important for becoming uplifted by listening to music. For example, the most critically evaluated aspect of classical music recordings is called transparent sound, a sound impression by which sound is very clear even it is localized at a distant location. Among factors that determine sound quality for earphones and headphones, amplitude frequency response is predominant, but there are some sound impression cannot be explained by it. With the A8000, a new evaluation index has been incorporated into that subjective evaluation methodology.
BOOST REGEX VS XPRESSIVE SERIES
Under the subjective evaluation methodology established at the time of D8000's development, the E Series achieved sound quality highly evaluated by many people and became a best seller. Development of the A8000 began with reconstruction of physical measurement and subjective evaluation methodologies.
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