AD Direct Box is one of the most useful and versatile tools available. The DB-1 enables the connection of any high-impedance unbalanced audio source signal to any low-impedance mic-level balanced input. Its parallel output allows the simultaneous connection to 2 separate inputs. A 3-position input attenuation switch (0dB, -20dB, -40dB) facilitates optimum level matching to connected equipment, and a ground lift switch eliminates ground loop-induced hum. The DB-1's rugged, roadworthy all-steel construction assures you years of continuous reliability.