Sound quality design based on the latest acoustic engineering and psychological research results. Clear sound quality that makes music sound pleasantly. Using the usual method of sound creation whereby certain high frequencies are emphasized, you're given to feel vivid sound when you first listen, but because of this, other ranges become clouded and hard to hear. With E2000, not creating a range that is emphasized makes for clear sound quality. Added to this, giving high frequencies the slightest distinctiveness has you experiencing the same sense of realism you would if the music were played right in front of you.