PARALLEL HIGH ZIN/OUT (1/4" Jacks) Two 1I 4" iacks which provide the means to input and ,oop through" the source signal. These iacks are wired in parallel, it makes no difference which one is used for input or output. LOW ZOUTPUT (XLR Jack) Amale XLR that provides a low-impedance (1 SO Ohms), balanc:ed output suitable for connection to a mixing console or work station. GHD/LIFr (Switch) Disconnects the ground between the input and the XLR output when set ft the "UFr position.