For some reason, I don't like the idea of having a 9v battery in my bass(batteries are for toys and flashlights). However, I do like StingRays and the sound that they get. How does the passive version of the S.U.B. compare to the active? What are the differences as far as sound and tone? Is it possible to use a pre-amp with the passive version to achieve the "active" sound on the 'Ray? Why is there only like a $50 difference between the two? I would seriously consider getting the passive version of the S.U.B., but I've read a few negative comments in comparison to the active version, ex: "Make sure you get the active one" Should I just stick with passive P's and J's or maybe a G&L L-1000? (don't like the MTD Kingstong/Heir (basswood?)) Also, was there ever a passive version of the StingRay?