This passive 1-channel DI box features a high-impedance 6.3 mm jack input, an unbalanced 6.3 mm link output, and a low-impedance balanced 3-pin XLR output for connection to a mixer. It converts unbalanced instrument or line signals to balanced XLR signals and provides switchable input attenuation of 0, -20, or -40 dB. The unit has a groundlift selector, input sensitivity switch, and rugged black metal housing.