Audac ATU44MK2 Universal Input AdapterThe ATU44 is a universal input adapter unit for conversion between various audio level signals, offering a wide variety of connection and extension possibilities to audio systems. The speaker level input features various taps for 100V, 70V, 50V and 33V audio levels, while a balanced line input allows conversion between balanced and or unbalanced line level audio signals. A typical application example is the conversion of any loudspeaker level audio