The dbx DI1 is a compact high-quality active direct Injection box. 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.