My EQ is doing something that I don't follow and is probably my fault lol. I can't turn the volume and sub input up all the way at the same time. I can turn one to max and the other to about a 1/4. If I go over that the sub starts thumping really fast. I think there are probably 10 or 15 companies copying this EQ design so I figure it would be the same for all. You guys have any suggestions or is this just how it is? I think my head unit may be better than this, I just wanted a line driver lol.