Klark Teknik DI 10A Features: Powered by +48v console phantom power High-quality Neutrik XLR and high impedance 1/4-inch TS connectors to maintain the highest signal integrity Easily accommodates signal levels ranging from +10 to +50 dBu Forget ground looping problems with the earth lift switch Switchable input attenuator for signal levels from instruments to loudspeakers 9V battery backup