An active preamp also takes all the thought out of matching sources & amps. It's the softer easier path.
As Elizabeth said, ya gotta pay attention with a passive pre and selecting sources is more important a thing.
here's the deal, unless you've joined the 'flavor of the month' club, and you like what you're getting, keep doing what you are doing.
Pay no attention to the man behind the curtains, you know, that little voice which says "Hey man, You need get another ...."
But that said... Quality is quality and always speaks for itself. Passive or active doesn't matter.
If you're looking to step up the performance level of your preamp, that's horse of a different color. But one design over another... passive vs. active... Well, I think that's a push and all you wind up with very often there is simply 'different'. One or the other is not preventing you from hearing everything you can hear from your source simply by their methodologies.
Rather than going from pass to active, go up a few levels in the same sandbox might be better.
