ART Pro Audio XDirect - Professional Active Direct Box - Manual (Page 7)

phantom power is available, then the Xdirect will
automatically draw its power from the external source.
The Battery on/off switch lights dim when the unit is
running off of the battery, lights brightly when it is
running off of phantom power, and is off when the unit is
inactive.
The compact black anodized all aluminum case and it’s
flexible power design allow the Xdirect to provide years
of trouble free service in Live Sound, Permanent/Fixed
Install, D.J., and virtually any PA application. It’s full
feature set, rugged construction, and high-end
specifications make the Xdirect the obvious choice
whenever you have to interface high impedance sources
with a low noise balanced system.