A good audio interface will deliver everything you need to enhance your music. Line-level inputs are perfect for those that wish to connect their interface to preamps or DVD players. You also need to determine how you will be connecting the device to your system. When attempting to figure out precisely what a good audio interface should entail, you should know exactly how the device would be used. Whether you play guitar or drums, the device will be able to pick up the audio you produce and convert it to data on your computer. This type of audio equipment is pertinent for those that want to create and develop their own songs. What is this device actually used for? Well, an audio interface is capable of recording external audio and transferring it to your computer. Before going any further, you should take the time to examine this device and its precise purpose.