We were all '' Newbies '' at one time. I'm STILL pretty new to this forum. But there are a lot of great people on here, some of them even work for Ernie Ball, and they are very helpful and will bend over backwards to help you in any way that they can.
With the ernie ball preamp you can boost or cut the bass/mids/treble (on a three band EQ model), so the middle indention is "flat" or Zero.
Not all basses out there are like this though, such as passive basses where all you can do is cut.