Bass: Yamaha rbx 270... one p one j pickup all passive electronics Sound: I play a lot of metal with this bass and I absolutely love the bass, I am not interested in buying a new one... but most of the time I notice the sound I get just sounds lifeless... there are no highs no growl no balls it just sounds completely sterile. I play through an mxr m80 and get a big improvement with the color and a touch of gain. Play in a rehearsal studio with eden wt800 head and swr cabs and do enjoy my tone there, but it is still missing something. I also have an ibanez srx700 with the alnico pfr humbuckers, and I know that a P style pickup will never match the output of those pickups, but sometimes going from that to the yamaha is painful cause I lose a lot of tone and just balls in the sound... Will going from a passive pickup and preamp, to a hotter passive pickup with the stock preamp really make any difference, I am really just looking for a little bit of a boost I guess so the change in instrument isnt AS dramatic. The yamaha has no room for a battery and I would rather not cut into the body at all or do anything like that... Should I just grin and bear it or might a passive pickup make a difference, and if it will what direction would suit me best, all I really know about are dimarzios emgs and sd's, anything else to research?