Splits a microphone to two different inputs such as a powered monitor and a console. Phantom block circuitry prevents interference from two different phantom power sources. The JIB/Y allows you to split a microphone to two different inputs. One application is splitting your microphone, first to the monitor board or powered monitor on stage and second to the front of house board. This will split your signal, giving you control of your own stage mix without affecting the house volume. The JIB/Y also has the phantom block circuitry which prevents phantom power from coming back into the JIB/Y from the two mixers you are feeding.