ART dADB Dual Channel Active Direct BoxThe ART dADB dual active direct box acts as two independent, high quality active interfaces for connecting instrument, line, or speaker level signals to balanced inputs. The high impedance inch inputs are buffered and converted by extremely low noise active electronics to deliver isolated, balanced, low impedance outputs. Features Fully Active Design Operates on Phantom Power or 9V Battery Converts High Impedance Balanced Unbalanced Inputs Into 600