I have (among others) a G&L L-2000 Tribute 4-string bass in Blue Burst.
This bass is odd, in that it has three switches in it that will select the pickup(s), change from passive/active mode, and change series/parallel mode. It also has G&L MFD pickups that are super-hot just as they sit, even in passive mode.
In active mode, I have to turn the volume back to around 50% to keep the pickups from overloading the front end of my Rumble 500. In passive mode, I also have to turn the volume back at least 25% or the input section of the amp will clip. Alternatively, I can turn down the bass control some --
but I like to rattle the windows and set off car alarms.
I find I like the
active tone in the bass more than the passive tone. However, the G&L L-2000 is not a
"dime the controls and forget it" instrument. You can get a wide variety of tones by manipulating the various knobs and switches. Once it is dialed in to user preference, the bass is a real beast.
The one downside to this bass is that it takes
six screws to get to the 9v battery. If the battery were to die during a gig, it would
not be quickly replaceable. I have played with the passive settings engaged and can get a reasonably nice tone out of it that still has girth, so I don't worry about battery failure with this bass. (I'm quite anal about unplugging the cable too, so hopefully this will prevent unanticipated battery failure.)
My other two basses have an easy-access battery door, and an extra 9v waiting in the guitar case - which covers my anxiety about battery failure well enough to get by most days. I've never had a battery fail though - I replace them [probably way too] often, just to be sure.
I have my eye on a
Yamaha BB734a, which also has the active/passive option and AN INDICATOR LIGHT FOR WHEN THE BATTERY IS LOW. (Why other manufacturers can't include this feature on their products is a befuddling mystery to me.)
That all said, I prefer "active" (on the one bass I own that has the active/passive option) but could easily live with "passive" after some knob tweaks.
My other basses are active only, and especially the Sterling Stingray Ray4 HH, I can't imagine them sounding good as passive basses.