The sound quality design based on the results of psychology researchs; High resolution, flat and natural sound quality, is a classic product. We conducted sound quality design based on the results of the latest acoustic engineering and psychology. Using the general sound making method of emphasizing a part of the treble, you can hear and feel the vibrancy of the sound, but this will result in a buried range of other sounds, making it difficult to hear. The E3000 does not produce an emphasized sound range, resulting in high resolution and wide sound stage. Balanced playing from bass to treble, you can experience the spread of sound like listening to music in the hall. This product aims to be called a "classic" that feels better than the appearance of the product when you hear it for a long time.