Compact active direct box. It is a high-quality active direct injection box in a compact form, ideal for both studios and on the road. The Di1 will ensure audio signals reach their intended destination in both a balanced format and free from unwanted noise. Connect the output from electric guitars, bass amplifiers, keyboards, etc., directly to a console mixer without the use of a microphone. Built for toughness and reliability, the Di1 has all the features of a fully featured gig-ready workhorse DI unit. Inputs:  TS and unbalanced XLR - Outputs: balanced XLR - Power supply: 9 V battery. It can be powered with phantom power 18-48 V.