So i finally got my rig. An ampeg 500 portaflex head. A hartke xl 4x10. My main bass atm is a squire jazz cv bass woth dimarzio ultra jazz pups. Now my problem is i dont exactly know how to work all the functions on the ampeg. Everything i do makes it sound too treble-y. I enjoy treble but i want to have a fatter more fuller sound since i play in a 3 piece band. Anyone familiar with the head can help me ge met a fuller sound? Or suggestions for good pedals that will add to the tone?