The Switchcraft SC800 Instrument Direct Box converts the unbalanced outputs of musical instruments to balanced, mic level signals that can be connected to audio consoles and mic preamps. Dual 1/4” thruputs enable connection to multiple devices such as an amp and a tuner, two amps, etc. A premium, fully shielded isolation transformer protects the purity of your sound from ground loops while providing a truly uncolored audio output.