I actually own two 5'rs. They are great basses! I don't know anything about an active passive switch, but they do have string mutes that introduce a neat "vintage" vibe. The string through body makes for a good resonance. My opinions of course! Fantastic B string. Man it sounds good. They have a tighter fingerboard radius than the Modern Rays which I personally liked. They sing more in the upper register than the Moderns as well. Again my opinion
As with all, try before you buy, both of mine sound different but in a unique way. But they do sound different to be sure