This apparently
Tilt is a dynamic, powerful SEE SAW EQ control. This control has a central neutral position. Turning the control clockwise increases the overall mid to high frequencies and decreases the lows thereby giving your sound more presence, which can be useful for cutting through live band situations. Turning the control anti clockwise reduces the overall mid to high frequencies and increases the lows making your overall sound rounder.
I turned it a little more to the mid lows, just a smidge, gave me a nicer smoother low end, not too much though.