Since it was too cold to take the speakersoutside today, I spent some time measuring a variety of eq's that I have. Here are some results from two channels eq'son two different boards. One has 4 bands with two sweepable mids, and the other has three fixed bands. Each trace is three db of change on the knob.
Here is the four band
High shelf
3000khz
Here is the four band
High shelf
3000khz