The ProCo DB-1 Direct Box is a rugged, reliable solution for connecting instruments or line-level audio sources to a balanced microphone input��ideal for live sound and recording. This passive DI box features a heavy-duty metal chassis and operates without the need for batteries or phantom power. The DB-1 includes a transformer-isolated XLR output, a 1/4" input, a 1/4" parallel output for thru-patching, and a ground lift switch to eliminate hum. This used unit is in Good condition with typical cosmetic wear but functions perfectly, delivering clean, clear audio signal conversion and impedance matching. Perfect for guitars, keyboards, or playback devices, it helps preserve signal integrity in any environment.