I had a Fishman fitted under the bridge but didn't want holes in the body of my Gurian for an EQ. Do very little with PAs but have found relying on the sound man for eq not always ideal.
Have looked at a Boss pedal with finger operated frequency sliders but that's on the floor.
These days I wondered if there might even be an inboard preamp (the Fishman has a fixed one) with a 'Remote' to set it's EQ?