Active/passive switching is a wiring choice. It can be done with any preamp.
High impedance passive pickups jive with a standard 1M Ohm input impedance. Any preamp with this specification, or higher, will work. Some of EMG's preamps have 500k Ohm input impedances. These are ok, but there will be a bit of loading on the pickups, resulting in a slight loss of treble.
Though uncommon, some preamps on the market have two or more inputs. These should be avoided on single-pickup basses.