Precision bass pickups or P-bass pickups are one of two main types of magnetic pickups used in electric bass guitars. A typical P-bass pickup consists of two independent coils which are mounted to separate bass plates and covers which are positioned in the instrument side-by-side and offset.
Each P-bass coil typically consists of four pole pieces. The two coils are mounted separately, but are generally wired together to form a single unit.
The other type of magnetic pickup commonly found in electric bass guitars is the Jazz bass pickup or J bass pickup which employs a single coil. The P bass pickup typically offers a more deep and thumpy bass-heavy tone compared to the J bass's smoother, brighter and richer tone in the treble and midrange.