It's actually funny - this guy will sometimes walk over (this is with any of my active basses) and ask if there's a pad engaged on the D.I. because he wants more volume. Honestly though, it's less about convincing the sound guy (most of the guys in the rhythm section recognize that he's deficient) than it is about being able to demonstrate to the band owner and MD (although the MD trusts me) that the problem isn't my bass. All the other sound guys are fine - it's just this one. The only reason it's an issue is that the band owner can be obsessive and it's annoying being put on the spot pretty much every time this guy does the sound for the band (which, thankfully, is not all the time).
I'm confused. Isn't your active Sadowsky providing a hotter signal than a passive bass? why would he be thinking your level has been attenuated?

