Its simple structure is one of the most significant benefits of single dynamic drivers. The amounts of drivers you possess as well as the complexity of your network will be determined by how much you try to tune the frequency response up and down through the use of a narrow driver unit. If the audible range is covered by one driver, you do not have to increase the numbers of drivers. The simplicity of the structure ensures that you can have a feel of the natural sound of the instrument unsullied. Nevertheless, there are stricter demands on drivers. It will be hard to believe that only the audible band are covered, and entry resistance is satisfied by a single driver, especially when using earphones that have limited driver size.