Hello, I'm Fender Bass owner(Pj setup).Body is made of swamp ash(as my luthier said),neck is rosewood. Today I realized I would like to make my bass sound a little bit brighter. I'm considering changing my SD pickups(SPB-3 and SJB-3),but I'm not sure which would be closest to my needs. Second idea is to add some onboard preamp.For sure it would be pretty nice if I could have more options of creating my sound. As I told, I like fat,agressive with lots of lows sound of my bass,but I want to change it a little bit. Any advices?