DI Boxes

DI Boxes (direct input) are an electronic device used in recording studios and for live sound to connect a high-output impedance, line level, unbalanced output signal to a low-impedance, microphone level, balanced input, usually via an XLR connector and XLR cable. These DI Boxes connect an electric guitar or electric bass to a mixing console’s microphone input jack. The DI performs level matching, balancing, and either active buffering or passive impedance matching/impedance bridging minimising unwanted noise, distortion, and ground loops.