So I've always thought I wanted/needed an active preamp on my bass. Well, for the last I don't know how long, I've run my Bartolini onboard 3 band with 3 way mid frequency select flat. Both pups at mid click on the balance, and full volume. Why do I need the active preamp? It may send a bit of a stronger signal to the amp, but other than that? what am I gaining? What would be a nice 34" scale, passive jazz with noiseless pups?