The basic application of a DI box is to convert unbalance high impedance instrument level to balance low impedance microphone level. This is commonly seen in the signal path of electric guitars, bass and synthesiser.
However, there are many other benefits of having a DI box in your signal chain. It can be use to split your signal for recording or it can help to reduce noise from avoiding long instrument cable runs.
Here is a diagram to illustrate how a DI box is integrated into the signal flow:
Comments