Xlr Ground Lift - Fishman PRO-EQ PLATINUM User Manual

XLR Ground Lift

Use this switch to eliminate AC ground loop hum. When you use the XLR and
one of the other outputs together and you hear hum from the speakers, put
the switch in the "lift" position and the hum should go away. If you use all three
outputs (XLR, ¼" output and tuner / send) to three separate AC powered devices,
the "lift" position may not completely eliminate ground loop hum.
Note: When you use only the XLR out, leave the Gnd/Lift switch in the "gnd"
position. In these cases, if you move the switch to the "lift" position, you will
hear a "pop" through your speakers and phantom power to the unit may be
compromised.
Tuner / Send
Signal Path: Instrument Signal
Use the tuner / send output when you need an unbalanced direct signal that is
not affected by any of the front panel controls. Use it for an external tuner or as
an aux send to a stage amp or a second mixer for broadcast / live recording.
Input Buffer Tuner/Send
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