As a high end audio manufacturer, NIRO provides what we like to call, "comfort sound". Today there are scientific instruments that can measure almost anything. Taste, for example, can be measured in degrees of sweet, salty, bitter, tart, spicy, etc. There are infrared devices that can 'see' objects in almost total darkness, beyond the limits of human ability. Sound can also be measured in terms of frequency response, distortion or pressure levels, but the quality of sound has never been accurately measured. 'Good sound' is simply a description by a reviewer, and we must interpret what he is trying to tell us. There are many words that can be used to describe "good sound", but none of them can be entirely accurate.
We at NIRO choose to define "good sound" as comfortable or easy on the ear. This is because we feel that "comfort" is universal to any age group or any kind of music. We feel that a home theater system is a tool for listening to "good sound"; not just 5.1 surround sound audio, but 2-channel stereo music as well.