VL3X guitar what is the best way to get similar volume on my guitar preset

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I now have upgraded from the TC Helicon play electric to the VL3x.  I am setting the unit up now, but am waiting to us it when i play live.  Right now I'm running theVL3x through a mixing board using a Bose S1 for the main PA.  My problem is that the different preset guitar volume is very different.  How can I get the volume to be more consistent.