EDIT: This may be pure coincidence, but I do find it interesting that the boost numbers in that series tend to accentuate alternating B and G-to-G# frequencies, except for the 3k, which accentuates a high harmonic of the E. The cut between 200 and 300 tends to cut the mud from the B around B3.
If there is any meaning to this - and I'm not sure there is since the numbers are very rough - it would seem to indicate a general need to pull up and sharpen the B and the G, and just to add some high end to the open E.