Hi All- Playing in a jazz combo with my Kay Chubby Jackson bass, realist PU into FDeck into Genz-Benz Shuttle 3.0. Quite satisfying sound and playing except at the higher volumes- my D string gets too hot (starting to feedback), from around Eb to G, which seem to be frequencies roughly 75-100 hz as best I can determine. The shuttle has a "parametric" equalizer that says 150 hz- 2khz range, but does not seems to help much, as I assume it is addressing frequencies about the problem area. As a consequence, I am considering adding a parametric EQ. I am open to other suggestions (I have read about physical changes to address resonant frequencies on the bass, but all impact tone), but short of that, I'd like input as to which parametric EQ might best address my problem. The Empress and the LR Baggs both seem capable of addressing my problem and then some (extra features) but both are pricey. Other suggestions for EQ? Other non-EQ suggestions? Thanks.