Introduction

Hi-Fi system is the most favorite product nowadays which provides entertainment (including music and movies) to people.

In order to enhance the competitive edge in the market, Hi- Fi now becomes more and more Hi-Tech. The maker focus on improve the sound quality of Hi-Fi and try their best to make the Hi-Fi multifunction and user-friendly.

Therefore, Hi-Fi is a good example that let us find the principle of mechatronic product design. In the following, we will investigate the Hi-Fi system through several topics.