Audio industry over the past decade has developed very large, whether it is civil fever audio to AV fever, or professional karaoke OK, disco to the present multimedia conference hall. From the consumer is concerned, both groups or individuals, audio has become an indispensable part of people's lives and work, and has become a fashion, this is a welcome side. It should be noted that, with the continuous improvement of people's awareness of the increasingly fierce competition in the product. Especially at the turn of the century, the government has also accelerated the pace of entry into the WTO. Although, this is a serious challenge, but it is an opportunity. The face of all kinds of audio products at home and abroad, our manufacturers of decision makers and product designers how to face this situation? At the turn of 2000, it is very useful for long-term strategic investors to re-examine our development philosophy. Many of these issues are related to the strength of enterprises, including: capital, management, technology development and technical reserves, information exchange, sales network and interpersonal relations processing, etc., but the most critical is Product quality problems, good value-added products to its high, enterprises will naturally have the vitality and vitality. Although the theme can be hype, but the value of the total return of the time. High-quality sound design is inseparable from the basic technical theory, but also inseparable from the subjective evaluation. After all, this particular commodity is ultimately dealing with people, is used to express the art, the subjective evaluation of the results can directly guide the product design. Therefore, we first explore the subjective evaluation of the content. Through the past few years to see and successive domestic audio equipment exhibition felt, on the specific technical issues, especially in the sound (box) design and evaluation of the relationship between listening to make a preliminary discussion.