Re: Seymour Duncan Blackouts - questions
Blackout pickups employ two low impedance coils followed by an electrically powered pre-amplifier stage inside the casing.
Coil splitting is not desirable. Firstly, it allows hum (which would then be boosted by the electronics). Secondly, it would involve physically breaking into the pickup.
One company known for combining single coil low impedance pickups with booster circuitry is Alembic. Even in this case, there will be a separate "dummy" noise-cancelling coil built into the instrument. (This coil functions with all of the instrument's pickups.)