The Xdirect from ART is a high quality interface that allows for connecting instrument, line, or speaker level signals to a mixer or other balanced input. The high impedance single-ended 1/4" and XLR inputs are buffered and converted, by very low noise active electronics, into an isolated balanced low impedance signal source.
The unit has an extremely flat and wide frequency response and can handle high signal levels while still maintaining an isolated balanced low impedance output. This gives the Xdirect a very clean and neutral sound with a wide variety of signal sources and over long signal runs in high noise environments.
The Xdirect's active circuitry is powered by an internal 9V battery, when external power is not available. In this mode it draws 3.5mA which should provide more than 250 hours of operation off of a new battery. If phantom power is available, then the unit will automatically draw its power from the external source.