So I purchased a used '93 SR800 off Guitar Center's website and after some SERIOUS TLC, she's in playable condition and sounds pretty good. However, somebody did some backyard luthier work on the electronics... No stacked pots, no active EQ preamp (from what I can tell) or anything like that. I couldn't tell you what the hell any of the knobs really do, I just fiddle with them or run them all full-on. At any rate, I can tell this is a passive (due to the output level and from the pots in there) setup but the pickups are supposed to be active. I actually kind of like the sound of the pickups running full-on, sort of a grindy tone with a hint of that cheesy 80's P/J tone that I like. My first thought is toss a preamp in there, but I'm wondering if I'll be jacking anything up since those pickups might still be active somehow? When it comes to the passive p-ups -> active preamp wiring setups, I completely understand how that works, but "active pickups", sans the preamp, sort of confuses me. From what I've read they typically have a baked-in EQ set to them and its in a module in the pickup enclosure that is often unadjustable. I scored this bass for $179 and it seems like a really good buy so far, just want to have more tonal control over it want to keep the character it has now intact. Would slapping a Bartolini, Audere, or some other preamp (please suggest, I am open to suggestions) just go right in and not require any additional craziness to power those pickups? Don't wanna drop a couple hundred $$'s and be completely screwed lol.