L1 Mix App - How LOW and HIGH EQ adjustments are handled

Hello Bose staff.  Can you give us an idea what the centered frequencies are on the HIGH AND LOW EQ knobs on the app.   For my outdoor gig at a large area, I have the LOW turned up to four oclock for my tracks which have bass guitar in them - which is quite a boost, but as I said, its an outdoor open area.  But man does it put out !!!!  I have the HIGH turned to about 11 oclock for a bit of a cut.  The array also really puts it out there. 

Let me add, it's the Pro16 I'm using

Treble and bass adjustments are a 15dB cut/boost of a 2nd order low shelf EQ at 100Hz.