XLR Pre/Post Switch, XLR Ground Lift, Tuner / Send

XLR Pre/Post Switch

Choose between a true D.I. (pre EQ) or an affected XLR output (post EQ).

1. XLR Post

Signal Path: Bass Signal  Input Gain  Depth  EQ  Compression  Volume  Phase Switch  XLR Out Post is useful in live venues (especially if you are mixing from onstage) where you want your personal “dialed-in” sound to come through the PA.

2. XLR Pre

Signal Path: Bass Signal  Input Buffer  Phase Switch  XLR Out

You’ll find that this true direct or “DI” output produces a warm and uncluttered signal that is exceptional for recording. Set the Pre / Post switch to the Pre position when you want a “flat” DI signal going to the board and you wish to leave it to the sound-person or recording engineer to dial up the bass tone from the console.

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, 1/4" 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: Bass Signal  Input Buffer  Tuner/Send

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.