The ULTRA-DI DI100 is a one-of-a-kind DI (direct injection) box that can convert up to 2 separate unbalanced 1/4" TRS lines into two balanced XLR outputs, or function as a signal splitter. Electric guitarists, keyboardists and bassists will love the flexibility this incredible box offers.It provides impedance and signal matching for the direct connection of instruments to mixers and amplifiers and features Ultra-flat frequency response, Additional Split mode, and Ground Lift switch for ground loop problem