Okay, So here I have new Schecter C-4. I like it, it is easy to play, a deep low end, nice highs, and having active pick ups it has a diversity of tone. It has added new dimensions to collection. But here is the problem, I have never had an active bass or a bass with more than 1 vol and 1 tone knob. this has four knobs. I have no manual. I think that I have figured out that the two knobs closests to the pickups are the master vols. The others must belong to the 2 band eq. I know that these knobs alter the tone of the bass, but when I am playing with the tone all I am doing is moving knobs. If I knew for example what some setting might do or how a specific setting effects the sound I could make a more educated effort and tone modification. Can someone more experience than I am with active pickups and onboard eq. give me some insight. Thanks.