Really it's my middle octave on my four string - sounds thin and guitar like. Current EQ setting is 40 hz cut just a little, and the rest of the graphic EQ making a "frown". I got to this setting on some TB advice and it has nearly solved my tone crisis I've been going through for weeks. For the most part sounds great in the mix. I like the way the first E through D sounds, starts getting thin sounding about the second octave E. Played a cover of Suffragette City and heard a recording played back. I played it starting at the 7th fret A using the 9th fret F# and 7th fret E - sounded super thin, like a thin guitar, I went down to B for a note in the verse and that was thick and fat and nice sounding. I went further up the neck on some other tunes, all the way up, and I'm fine with how the third octave sounded, kind of clean and piano like, just wasn't digging my middle octave. Can that be addressed through EQ? Fatten up the middle of my range without messing up the low end or high end of my range. What specific frequency should I address?