Hammond B-3X probably a silly question but...

[mikegorman1970]

Hi all,
|Getting ready to use the B-3X on a tour. Love it.
But I'm trying to get my head around shaping the sound.
I can't figure out where the overdrive is coming from in for intstance, the Absence of Presence preset.
The pedal isn't on and it doesn't seem to have much more gain or differences in the mix than other cleaner presets.
Guitar amp is off also.
What am i missing here?
Thanks

[dougs.ik]

In the "CABS" tab the Leslie Amp gain can create what some other Hammond VST's refer to as "Drive".