Active 1-channel direct box to provide a direct insertion of an audio signal into a mixer or recorder. A variety of audio signals can be connected to your DI-1, e.g. guitars, bass guitars, drum machines, keyboards, outboard signal processors, etc. Besides that the DI-1 is also useful for connecting imbalanced signals such as DJ mixers, effects processors and keyboards to a main PA or recording mixer. The DI-1 can be powered either by a single 9 volt battery or standard 48 volt phantom power. The DI-1 enables you to tap off the signal from a guitar or bass guitar and pass the signal from the THRU output to the guitar / bass guitar amplifier without affecting the original sound. The OUTPUT connection gives cancellation of hums/buzzes while leaving the original signal clean and pure. The device comes in a sturdy aluminum shell with stabilizing rubber grip feet.