Hi guys, I'm Fang and i'm new here. I have played bass for 2years and now playing for a rock band. I'm now using the 4 Strings Fender Jazz Bass with Dirmazio JDP159 pickups with Behringer BDI21 pre-amp. The trouble i've got stuck here is everytime i listen to my bass sound and compare with another bassist sound, i found that my sound is quite powerful but it cannot bring the whole power to the band's sound. I just wanna bring a thick bass background to the band but everytime, when my band's guitarist does a solo on his guitar, he often gives me feedback that he feels the whole sound is quite thin. I wonder how to make my bass sound more fuller but it doesn't mean more louder. The different from the active/passive pickups or my pre-amp is not good enough or something else ? please give me advice. Thanks !