I currently have a Music Man Sterling that I play through a SWR Workingman's 15. I'm looking at getting a large rig since my 15 is petering out when we get loud. What is the role of the preamp vs the amp? I gather the preamp effects your tone primarily and the amp powers the signal through the speaker. Correct? What about the electronics on my Sterling? They require a battery and I assume this also serves as a preamp. Is my bass' preamp--> racked preamp---> an amp too much gear? Why should I choose to use all or the above. I'm confused...all I really want is ripping sound for another 2 grand or so (I'm keeping the bass of course). I'm having gear overload....HELP!!